TWI849235B - Thermal insulation and sound absorbing materials and partition walls - Google Patents

Abstract

The subject of the present invention is to provide a heat-insulating sound-absorbing material with improved construction performance, and a partition wall that suppresses the reduction of sound insulation performance. The heat-insulating sound-absorbing material 1 composed of an inorganic fiber block of the present invention has a block density of 10-20 kg/m ³ , and the length-load average fiber diameter of the inorganic fiber of the block is 2.0-8.7 μm; the block contains 20-66% of inorganic fibers with a length-load average fiber diameter of less than 4.0 μm, and contains 13-58% of inorganic fibers with a length-load average fiber diameter of 7.0 μm or more. The partition wall of the present invention contains the above-mentioned heat-insulating sound-absorbing material in the hollow part of the wall body.

Description

Thermal insulation and sound absorbing materials and partition walls

The present invention relates to a heat-insulating sound-absorbing material composed of an inorganic fiber block, and a partition wall containing the heat-insulating sound-absorbing material.

It is known that in order to achieve heat insulation and sound insulation, heat insulation and sound absorption materials formed of inorganic fibers such as glass wool are arranged in the wall body of the partition wall. Regarding such a partition wall, for example, Patent Document 1 discloses: an outer wall composed of gypsum board is arranged on both sides of the central wall, and a heat insulation and sound absorption material is arranged between the central wall and the outer wall.

[Prior Art Literature] [Patent Literature]

[Patent document 1] Japanese Patent Publication No. 2010-265645

Here, the heat insulation and sound absorption material is generally glass wool with a density of 24kg/ ^m3 and a thickness of 50mm. In response to this, in recent years, the construction workers of partition walls are in short supply and aging. The heat insulation and sound absorption materials generally used are heavy, which will cause a great burden on the operation of old and unskilled workers. By reducing the density of the heat insulation and sound absorption material, it can be lightened and the construction performance can be improved. However, if the density is only reduced, the sound insulation performance will be reduced.

The present invention is made in view of the above problems, and aims to provide: a heat-insulating sound-absorbing material that suppresses the reduction of sound insulation performance and improves construction performance, and a partition wall containing the heat-insulating sound-absorbing material.

If the density of the heat-insulating sound-absorbing material is reduced, the construction performance will be improved because the weight of the heat-insulating sound-absorbing material will be reduced. However, if the density of the heat-insulating sound-absorbing material is reduced, the sound insulation performance will be reduced.

Furthermore, if the fiber diameter of the inorganic fiber of the thermal insulation sound absorbing material is reduced, the reduction in sound insulation performance due to the reduction in density can be suppressed. However, if the fiber diameter of the inorganic fiber of the thermal insulation sound absorbing material is reduced, the hardness of the thermal insulation sound absorbing material will be reduced, resulting in a reduction in construction performance.

In contrast, the inventors have discovered that by improving the fiber diameter distribution of the inorganic fibers that make up the heat-insulating sound-absorbing material, it is possible to suppress the reduction in sound insulation performance and also improve construction performance.

According to one aspect of the present invention, a heat insulating sound absorbing material is formed of an inorganic fiber block, wherein the density of the block is 10-20 kg/m ³ , the length load average fiber diameter of the inorganic fiber in the block is 2.0-8.7 μm; the block contains 20-66% of inorganic fibers having a length load average fiber diameter of less than 4.0 μm, and contains 13-58% of inorganic fibers having a length load average fiber diameter of 7.0 μm or more. In addition, the total of inorganic fibers less than 4.0 μm, inorganic fibers greater than 4.0 μm and less than 7.0 μm, and inorganic fibers greater than 7.0 μm is 100%. Here, the ratio of inorganic fibers in the average fiber diameter range of each length load of the present invention is expressed as the count ratio (count %).

According to the above structure, since the heat-insulating and sound-absorbing material is lightweight, the workability can be improved, and the heat-insulating and sound-absorbing material has a hardness that can be constructed, which can improve the workability and ensure sufficient sound insulation performance.

Preferably, the block is formed into a plate shape by laminating the first layer and the second layer, and the length load average fiber diameter of the first layer of inorganic fibers is 0.1~3.0μm larger than the length load average fiber diameter of the second layer of inorganic fibers.

According to the above structure, the heat-insulating and sound-absorbing material has sufficient hardness, which can improve the construction performance and the sound insulation performance.

Preferably, the block is formed into a plate shape by sequentially stacking the first layer, the second layer, and the third layer, and the length-load average fiber diameter of the first layer and the third layer of inorganic fibers is 0.1-3.0 μm larger than the length-load average fiber diameter of the second layer of inorganic fibers.

According to the above structure, the heat-insulating and sound-absorbing material has sufficient hardness, which can improve the construction performance and the sound insulation performance.

Preferably, the block is formed into a plate shape by laminating multiple layers, and the length load average fiber diameter of the outermost inorganic fiber in the multiple layers is 4.3~7.0μm.

According to the above structure, the heat-insulating and sound-absorbing material has sufficient hardness, which can improve the construction performance and the sound insulation performance.

Preferably, the length-load average fiber diameter of the inorganic fiber block is 3.8~5.3μm.

Based on the above structure, the construction efficiency and sound insulation performance can be further improved.

Preferably, the block contains 13-33% of inorganic fibers having a length-load average fiber diameter of 7.0 μm or more.

Preferably, the block contains 41-66% of inorganic fibers with a length-load average fiber diameter of less than 4.0 μm.

Based on the above structure, high construction performance and high sound insulation performance can be more reliably taken into account.

Preferably, the inorganic fiber is glass wool.

According to the above structure, construction can be simplified and costs can be reduced.

Preferably, the block contains 1.0-8.5 wt % of a binder for agglomerating the inorganic fibers relative to the weight of the block, and the binder strength of the binder is 3.6-6.1 N/mm ² .

According to the above structure, the heat-insulating sound-absorbing material can have sufficient rebound strength and maintain thickness. In addition, the adhesive can be evenly applied during manufacturing, and construction in gaps and the like can be easily performed. In addition, there is no need to set up a film to suppress skin irritation (stinging), and the irritating touch of the skin can be suppressed.

The material of the binder used to aggregate the inorganic fibers can be freely selected under the premise of thermosetting resin. For example, phenol resin, urea resin, melamine resin, resorcinol resin, acrylic resin, polyester resin, sugar resin, starch resin, etc. can be selected. The above-mentioned binder preferably contains a thermosetting resin that is hardened by a reaction selected from the group consisting of amidation reaction, imidization reaction, esterification reaction and ester exchange reaction.

According to one aspect of the present invention, the partition wall contains the above-mentioned heat-insulating and sound-absorbing material in the hollow part of the wall.

According to the above structure, since the heat-insulating and sound-absorbing material is lightweight, the construction performance can be improved, the heat-insulating and sound-absorbing material has a hardness that can be constructed, the construction performance can be improved, and the partition wall can ensure sufficient sound insulation performance.

Preferably, the partition wall has: a slat and a surface material; the slat includes: a lower groove arranged on the ground structure, an upper groove fixed on the roof structure, and a column; the column is vertically set up between the lower groove and the upper groove by using a single groove/staggered column method, a single groove/common column method, a single groove/common column method nailing pads staggered arrangement, a single groove/staggered column method nailing pads arrangement, or a double groove/side-by-side column method; the surface material is constructed from the ground structure to the roof structure on both sides of the slat.

According to the above structure, heat insulation and sound absorption materials can be easily arranged in the partition wall.

Preferably, the surface material is made of a board of non-combustible material (first-class flame-resistant material) or second-class flame-resistant material, or a laminate thereof.

Preferably, the surface material is composed of ordinary gypsum board, reinforced gypsum board, hard gypsum board or other gypsum board, or fiber-reinforced gypsum board, or a laminate thereof.

Preferably, the thickness of the surface material is more than 20mm.

According to the above structure, the partition wall can be given heat insulation and sound insulation properties, and can be made non-flammable.

According to the present invention, a heat-insulating sound-absorbing material that improves construction performance without reducing sound insulation performance, and a partition wall containing the heat-insulating sound-absorbing material can be provided.

1, 11, 21: Heat insulation and sound absorption materials

12, 22: Layer 1

13, 23: Layer 2

24: Layer 3

100, 200, 300, 400, 500, 600: partition wall

101: Ground structure

102: Along the top structure

110: Lath

111: Lower slot

111A: Side

111B: Side

112: Upper slot

112A: Side

112B: Side

114: Column (cross section is U-shaped)

114A: Side

114B: Side

120: Surface material

121: Base plate

122: Panel

130: Self-tapping screws

132: Nail pad

140: Hollow part of the wall

214: Column (square cross section)

214A: Side

214B: Side

Figure 1 is a cross-sectional view of the heat-insulating sound-absorbing material of the first embodiment of the present invention; Figure 2 is a cross-sectional view of the heat-insulating sound-absorbing material of the second embodiment of the present invention; Figure 3 is a cross-sectional view of the heat-insulating sound-absorbing material of the third embodiment of the present invention; Figure 4 is a perspective view of the partition wall of the fourth embodiment of the present invention; Figure 5 is a horizontal cross-sectional view of the partition wall of the fourth embodiment of the present invention; Figure 6 is a horizontal cross-sectional view of the partition wall of the fifth embodiment of the present invention; Figure 7 is a horizontal cross-sectional view of the partition wall of the sixth embodiment of the present invention; Figure 8 is a horizontal cross-sectional view of the partition wall of the seventh embodiment of the present invention; Figure 9 is a horizontal cross-sectional view of the partition wall of the eighth embodiment of the present invention; and Figure 10 is a horizontal cross-sectional view of the partition wall of the ninth embodiment of the present invention.

Below, the implementation forms of the heat-insulating sound-absorbing material and partition wall of the present invention are described with reference to the drawings.

<First implementation form>

FIG1 is a cross-sectional view of the heat-insulating sound-absorbing material of the first embodiment of the present invention. As shown in FIG1 , the heat-insulating sound-absorbing material 1 of the first embodiment is a single-layer structure, which is composed of a plate-like block formed by inorganic fibers using an adhesive. When used as a partition wall, the thickness of the heat-insulating sound-absorbing material 1 is preferably 10 to 100 mm.

(Manufacturing method of heat-insulating and sound-absorbing materials)

First, glass wool is produced by, for example, molten glass in a glass melting furnace, extracting a predetermined amount of glass, and using a fiberizing device to heat the glass by burning gas and air, and to stretch the fiber by compressed air. Examples of fiberizing methods include the well-known centrifugal method, flame method, and air jet method, but are not particularly limited to these methods. Examples of fiberizing devices that use the centrifugal method include a spinning machine, etc.

The heat-insulating sound-absorbing material 1 can be manufactured by stacking glass wool into a blanket shape. Specifically, a predetermined amount of an adhesive containing any dust-proof agent or other additive is blown toward the glass wool, and then the wool is collected in a predetermined basis weight manner using a stacking conveyor belt, and then the adhesive is hardened in an oven. Then, slitting, trimming cutting, and cutting in the short side direction of the product are performed to form a glass wool blanket of a predetermined size.

(Density of thermal insulation and sound absorbing materials)

The block density of the heat insulating and sound absorbing material of this embodiment is 10-20 kg/m ³ . The block density can be measured, for example, according to the method of JIS A9521.

When the block density is less than 10 kg/m ³ , the sound insulation performance of the heat-insulating and sound-absorbing material is insufficient, and the heat-insulating and sound-absorbing material 1 may bend or sag during construction, making construction difficult.

Furthermore, when the block density is greater than 20 kg/m ³ , the weight of the heat-insulating and sound-absorbing material 1 is too large, which causes a load on the construction during loading and installation, making it difficult for elderly workers or unskilled workers to work. In addition, because the construction weight per unit area increases, the transportation efficiency will decrease. In addition, it will be difficult to cut the heat-insulating and sound-absorbing material 1 into a predetermined shape. In addition, if the block density is too high, it will lead to an increase in manufacturing costs.

In contrast, the present embodiment can ensure sufficient sound insulation performance because the block density is 10-20 kg/m ³ , and the heat-insulating sound-absorbing material 1 has rigidity for construction, and because it is lightweight, the construction efficiency is improved. In addition, the construction weight per unit area is also small, and the transportation efficiency can also be improved. In addition, the heat-insulating sound-absorbing material 1 can be easily cut into a predetermined shape, which can also reduce the manufacturing cost.

(Length load average fiber diameter of inorganic fiber)

The inorganic fiber block that constitutes the heat-insulating sound-absorbing material in this embodiment has a length-load average fiber diameter of 2.0 to 8.7 μm. In this embodiment, the length-load average fiber diameter of the inorganic fiber is measured using a cottonscopeHD manufactured by Cottonscope Pty Ltd in accordance with the following measurement conditions.

The length-load average fiber diameter is obtained by magnifying the fibers dispersed in water with a microscope, reading the image taken with a camera into a computer, measuring the fiber diameter using image processing, and obtaining the average value from 30,000 measured values. However, fibers with a length of less than 50μm and fibers with a length shorter than 3 times the fiber diameter are excluded from the statistics. In addition, in order to implement statistics that take fiber length into consideration, long fibers with a length greater than 50μm are automatically divided into lengths using image processing, and the values obtained by measuring the divided fiber diameters are statistically analyzed.

If the average fiber diameter of the inorganic fiber length load is less than 2.0μm, the rigidity of the heat insulating and sound absorbing material 1 is low, and bending or sagging will occur during construction, making construction difficult. In addition, if the average fiber diameter of the inorganic fiber length load is greater than 8.7μm, the gap will become larger, resulting in reduced sound insulation performance. In contrast, in this embodiment, since the average fiber diameter of the inorganic fiber length load is 2.0~8.7μm, the rigidity (hardness) of the heat insulating and sound absorbing material 1 is improved, which can improve construction performance and ensure sufficient sound insulation performance.

Furthermore, it is more preferable that the length load average fiber diameter of the block inorganic fiber constituting the heat insulating and sound absorbing material of this embodiment is 3.8~5.3μm. In addition, the fiber length is preferably 20mm~200mm. The longer the fiber length, the easier it is to improve the rigidity. In this way, the heat insulating and sound absorbing material 1 can maintain sufficient rigidity and can further improve the construction performance and sound insulation performance.

(Length load fiber diameter distribution of inorganic fibers)

The blocks constituting the heat insulating and sound absorbing material of this embodiment contain 20-66% of inorganic fibers having a length-load average fiber diameter of less than 4.0 μm, and 13-58% of inorganic fibers having a length-load average fiber diameter of 7.0 μm or more. In addition, the inorganic fibers less than 4.0 μm, the inorganic fibers greater than 4.0 μm and less than 7.0 μm, and the inorganic fibers greater than 7.0 μm add up to 100%. The ratio of inorganic fibers in each length-load average fiber diameter range referred to here means the count ratio (count %). In this embodiment, the measurement of the length-load average fiber diameter of the inorganic fibers is carried out using a cottonscopeHD manufactured by Cottonscope Pty Ltd in accordance with the measurement conditions of Table 1. The length load fiber diameter distribution is a statistical curve made using the measured value of the length load average fiber diameter, and the proportion of inorganic fibers with a length load average fiber diameter of less than 4.0μm and the proportion of inorganic fibers with a length load average fiber diameter of 7.0μm or more are calculated.

When the inorganic fiber with a length-load average fiber diameter of 7.0 μm or more contained in the block is less than 13%, and when the inorganic fiber with a length-load average fiber diameter of less than 4.0 μm is more than 66%, the rigidity of the heat-insulating sound-absorbing material is low, and the hardness of the heat-insulating sound-absorbing material is insufficient, resulting in a decrease in workability. In addition, when the inorganic fiber with a length-load average fiber diameter of 7.0 μm or more contained in the block is more than 58%, or when the inorganic fiber with a length-load average fiber diameter of less than 4.0 μm contained in the block is less than 20%, the voids in the heat-insulating sound-absorbing material become larger, resulting in a decrease in sound insulation performance. In contrast, the block of the heat-insulating sound-absorbing material formed in this embodiment contains 20-66% of inorganic fibers with a length-load average fiber diameter of less than 4.0 μm and 13-58% of inorganic fibers with a length-load average fiber diameter of 7.0 μm or more. Therefore, the heat-insulating sound-absorbing material has sufficient hardness required for construction, can improve construction performance, and can ensure sufficient sound insulation performance.

It is also better that the block contains 13-33% of inorganic fibers with a length-load average fiber diameter of 7.0μm or more. This can more surely take into account both high construction performance and high sound insulation performance.

Furthermore, it is more preferable that the block contains 41-66% of inorganic fibers with a length-load average fiber diameter of less than 4.0μm. In this way, high construction performance and high sound insulation performance can be more reliably taken into account.

(Inorganic fiber)

Inorganic fiber is a fiber-shaped component made of inorganic materials such as glass wool, rock wool, and slag wool. Other materials can be used. However, if construction performance and cost are considered, glass wool is preferred.

(Adhesive)

The material of the binder used to aggregate the inorganic fibers can be freely selected on the premise of a thermosetting resin. For example, phenol resin, urea resin, melamine resin, resorcinol resin, acrylic resin, polyester resin, sugar resin, starch resin, etc. can be selected. The above-mentioned binder preferably contains a thermosetting resin that is hardened by a reaction selected from the group consisting of amidation reaction, imidization reaction, esterification reaction, and transesterification reaction.

The weight ratio of the binder (resin content) of the block constituting the heat-insulating sound-absorbing material is preferably 1.0 to 8.5% by weight relative to the block weight. In addition, the resin content is obtained by performing the following steps: (1) cutting the glass wool blanket into 100 mm × 100 mm pieces to form a test piece and measuring the weight (Wa); (2) placing the cut test piece into an electric furnace set at 530°C to decompose the binder components; and (3) taking out the test piece after the binder components are decomposed from the electric furnace, measuring the weight (Wb), and then calculating the resin content from the difference between the measured value (Wa) in step (1). The resin content can be obtained according to the following formula.

Resin content (weight %) = {(Wa-Wb)/Wa}×100

If the resin content of the block constituting the heat-insulating sound-absorbing material is less than 1.0% by weight, the rebound strength (elasticity) of the heat-insulating sound-absorbing material is small and the thickness of the heat-insulating sound-absorbing material cannot be maintained. Also, if the resin content is less than 1.0% by weight, the adhesive cannot be evenly applied during manufacturing.

Furthermore, if the resin content of the block constituting the heat-insulating sound-absorbing material is more than 8.5% by weight, the heat-insulating sound-absorbing material becomes hard, making it difficult to construct in gaps and the like. Also, if the resin content is more than 8.5% by weight, the cost of the heat-insulating sound-absorbing material increases.

In contrast, because the weight ratio of the adhesive (resin content) of the block constituting the heat-insulating sound-absorbing material in this embodiment is 1.0~8.5% by weight, the heat-insulating sound-absorbing material has sufficient rebound strength and can maintain the thickness of the heat-insulating sound-absorbing material. In addition, the adhesive can be evenly applied during manufacturing, and construction can be easily performed on gaps and the like.

Furthermore, the adhesive strength of the adhesive is preferably 3.6-6.1 N/mm ² . In addition, the strength of the adhesive can be measured according to the shell mold tensile strength measurement method including the following steps. The steps are: (1) adding 2.7 wt % of a binder into 150 g of glass beads and mixing to obtain a mixture; (2) uniformly filling the mixture obtained in step (1) into an iron mold, heating the mixture in an oven to harden the binder, and obtaining a shell mold test piece (thickness 6 mm × width 27 mm × length 74 mm, but the width of the clamping part is 42 mm); (3) taking the shell mold test piece obtained in step (2) out of the oven and cooling it to room temperature; and (4) using a universal material testing machine to measure the tensile strength of the shell mold test piece at a tensile speed of 5 mm/min.

If the adhesive strength of the heat insulating and sound absorbing material is less than 3.6 N/mm ² , the resin content must be increased to block the glass wool. If the adhesive strength of the heat insulating and sound absorbing material is higher than 6.1 N/mm ² , the skin irritation of the fiber increases. In contrast, in this embodiment, since the adhesive strength of the adhesive is 3.6 to 6.1 N/mm ² , the skin irritation can be suppressed even when a film for suppressing skin irritation (stinging) is not provided. In addition, the present invention is not limited to the case where no film is provided. In order to further improve the construction performance, further suppress the skin irritation, and provide moisture-proof performance, a film can also be pasted (or coated). The film can be pasted on one side or both sides of the heat-insulating sound-absorbing material, or it can cover all four sides or six sides of the heat-insulating sound-absorbing material. The heat-insulating sound-absorbing material and the film can be pasted with an adhesive, or the films can be pressed or adhered to cover the heat-insulating sound-absorbing material. In addition, when pasting (or coating) the film, holes can be opened arbitrarily, thereby controlling the sound insulation performance, sound absorption performance and moisture permeability.

<Second implementation form>

FIG2 is a cross-sectional view of the heat-insulating sound-absorbing material of the second embodiment of the present invention. As shown in FIG2, the heat-insulating sound-absorbing material 11 of the second embodiment is a double-layer structure, which is composed of a plate-shaped block formed by inorganic fibers using a binder. The block constituting the heat-insulating sound-absorbing material 11 has a first layer 12 and a second layer 13. The first layer 12 is a layer formed first when constituting the heat-insulating sound-absorbing material 11, and the second layer 13 is a layer formed on the first layer 12. When used for a partition wall, the thickness of the heat-insulating sound-absorbing material 11 is preferably 10 to 100 mm, and the thickness ratio of the first layer 12 is preferably 25 to 75%.

(Manufacturing method of heat-insulating and sound-absorbing materials)

First, glass wool is produced by, for example, molten glass in a glass melting furnace, extracting a predetermined amount of glass, and using a fiberizing device to heat the glass by burning gas and air, and to stretch the fibers by compressed air. Fiberizing methods include, but are not limited to, the centrifugal method, flame method, and air jet method, which are well-known. Examples of fiberizing devices that use the centrifugal method include spin coaters, etc.

The heat-insulating sound-absorbing material 11 can be manufactured by stacking glass wool into a blanket shape. Specifically, a predetermined amount of an adhesive containing any dust-proof agent or other additives is blown toward the glass wool, and then the first layer 12 is formed by collecting the wool in a predetermined basis weight manner using a stacking conveyor, and the first layer 12 is stacked, and the second layer 13 is formed by collecting the wool in a predetermined basis weight manner, and then the adhesive is hardened in an oven. Then, the wool is cut, trimmed, cut in the short side direction of the product, etc., and the glass wool blanket of a predetermined size is formed.

(Density of thermal insulation and sound absorbing materials)

The block density of the heat insulating sound absorbing material 11 of this embodiment is 10-20 kg/m ³ . In addition, the "block density of the heat insulating sound absorbing material 11" here refers to the overall density including the first layer 12 and the second layer 13. Since the block density of the heat insulating sound absorbing material 11 of this embodiment is also 10-20 kg/m ³ , the same effect as the first embodiment can be achieved. In addition, the density of the first layer 12 and the second layer 13 is preferably equal.

(Length load average fiber diameter of inorganic fiber)

The inorganic fiber block that constitutes the heat insulating sound absorbing material 11 in this embodiment has a length load average fiber diameter of 2.0 to 8.7 μm. More preferably, the inorganic fiber block that constitutes the heat insulating sound absorbing material 11 in this embodiment has a length load average fiber diameter of 3.8 to 5.3 μm. In addition, the length load average fiber diameter of the block that constitutes the heat insulating sound absorbing material 11 here refers to the entire length load average fiber diameter including the first layer 12 and the second layer 13. In this embodiment, the inorganic fiber length load average fiber diameter is also 2.0 to 8.7 μm, preferably 3.8 to 5.3 μm. Furthermore, the fiber length is preferably 20mm~200mm. The longer the fiber length, the easier it is to improve the rigidity. By doing so, the same effect as the first embodiment can be achieved.

In this embodiment, the length-load average fiber diameter of the inorganic fiber of the first layer 12 is 0.1 to 3.0 μm larger than the length-load average fiber diameter of the inorganic fiber of the second layer 13. If the difference between the length-load average fiber diameter of the inorganic fiber of the first layer 12 and the length-load average fiber diameter of the inorganic fiber of the second layer 13 is less than 0.1 μm, sufficient hardness cannot be obtained and workability cannot be improved. In addition, if the difference between the length-load average fiber diameter of the inorganic fiber of the first layer 12 and the length-load average fiber diameter of the inorganic fiber of the second layer 13 is greater than 3.0 μm, the sound insulation performance will be reduced. In contrast, according to this embodiment, since the length-load average fiber diameter of the inorganic fiber of the first layer 12 is 0.1-3.0 μm larger than the length-load average fiber diameter of the inorganic fiber of the second layer 13, sufficient hardness can be obtained, which can improve the workability and also improve the sound insulation performance.

Furthermore, in this embodiment, in the first layer 12 and the second layer 13, the outermost layer (the layer that is directly in contact with the first formed layer of the production line when forming the heat insulating sound absorbing material 11 in the double 2-layer structure of this embodiment) of the first layer 12 has a length load average fiber diameter of 4.3~7.0μm. If the length load average fiber diameter of the first layer 12 is less than 4.3μm, sufficient hardness cannot be obtained and construction performance is not improved. In addition, if the length load average fiber diameter of the first layer 12 is greater than 7.0μm, although the hardness is improved, the sound insulation performance will be reduced. In contrast, according to this embodiment, since the length-load average fiber diameter of the inorganic fiber of the first layer 12 is 4.3~7.0μm, sufficient hardness can be obtained, which can improve the construction performance and also improve the sound insulation performance.

(Length load fiber diameter distribution of inorganic fibers)

The blocks constituting the heat insulating sound absorbing material 11 of this embodiment contain 20-66% of inorganic fibers having a length-load average fiber diameter of less than 4.0 μm, and contain 13-58% of inorganic fibers having a length-load average fiber diameter of 7.0 μm or more. More preferably, the blocks contain 13-33% of inorganic fibers having a length-load average fiber diameter of 7.0 μm or more. Even more preferably, the blocks contain 41-66% of inorganic fibers having a length-load average fiber diameter of less than 4.0 μm. In addition, the length load fiber diameter distribution of the heat insulating sound absorbing material 11 referred to here refers to the entire length load fiber diameter distribution including the first layer 12 and the second layer 13. In addition, the inorganic fiber less than 4.0 μm , the inorganic fiber greater than 4.0 μm and less than 7.0 μm , and the inorganic fiber greater than 7.0 μm are added together to form 100%. In addition, the inorganic fiber ratio of each length load average fiber diameter range referred to here is expressed as the count ratio (count %) in the same manner as in the first embodiment. According to this embodiment, by having the above-mentioned fiber diameter distribution, the same effect as in the first embodiment can be achieved.

(Inorganic fiber)

Inorganic fiber is a fiber-shaped component made of inorganic materials such as glass wool, rock wool, and slag wool. Other materials can be used. However, if construction performance and cost are considered, glass wool is preferred.

(Adhesive)

The material of the binder used to aggregate the inorganic fibers can be freely selected on the premise of a thermosetting resin. For example, phenol resin, urea resin, melamine resin, resorcinol resin, acrylic resin, polyester resin, sugar resin, starch resin, etc. can be selected. The above-mentioned binder preferably contains a thermosetting resin that is hardened by a reaction selected from the group consisting of amidation reaction, imidization reaction, esterification reaction, and ester exchange reaction.

The weight ratio of the adhesive (resin content) of the block constituting the heat-insulating sound-absorbing material 11 is preferably 1.0 to 8.5% by weight relative to the weight of the block. In addition, the weight ratio of the adhesive of the block constituting the heat-insulating sound-absorbing material 11 referred to here refers to the weight ratio of the entire adhesive including the first layer 12 and the second layer 13. According to this embodiment, by setting the weight ratio of the adhesive (resin content) to 1.0 to 8.5% by weight, the same effect as the first embodiment can be achieved. In addition, in order to adjust the hardness, the weight ratio of the adhesive of the first layer and the second layer can also be adjusted individually within the above range.

Furthermore, in this embodiment, the adhesive strength of the adhesive is preferably 3.6-6.1 N/mm ² . According to this embodiment, by setting the adhesive strength of the adhesive to 3.6-6.1 N/mm ² , the same effect as the first embodiment can be achieved.

<Third implementation form>

FIG3 is a cross-sectional view of a heat-insulating sound-absorbing material according to the third embodiment of the present invention. As shown in FIG3 , the heat-insulating sound-absorbing material 21 according to the third embodiment has a three-layer structure and is formed of a plate-shaped block formed by agglomerating inorganic fibers using a binder. The block forming the heat-insulating sound-absorbing material 21 has a first layer 22, a second layer 23, and a third layer 24. The first layer 22 is a layer formed first when forming the heat-insulating sound-absorbing material 21, the second layer 23 is a layer formed on the first layer 22, and the third layer 24 is a layer formed on the second layer 23. When used for partition walls, the thickness of the heat-insulating sound-absorbing material 21 is preferably 10-100 mm, and the thickness ratios of the first layer 22, the second layer 23, and the third layer 24 are preferably 8-35%, 30-84%, and 8-35%, respectively. In addition, the thickness ratios of the first layer 22, the second layer 23, and the third layer 24 add up to 100%.

(Manufacturing method of heat-insulating and sound-absorbing materials)

First, glass wool is produced by, for example, molten glass in a glass melting furnace, extracting a predetermined amount of glass, and using a fiberizing device to heat the glass by burning gas and air, and to stretch the fibers by compressed air. Fiberizing methods include, but are not limited to, the centrifugal method, flame method, and air jet method, which are well-known. Examples of fiberizing devices that use the centrifugal method include spin coaters, etc.

The heat-insulating sound-absorbing material 21 can be manufactured by stacking glass wool to form a blanket. Specifically, a predetermined amount of an adhesive containing any dust-proof agent or other additive is blown toward the glass wool, and then the first layer 22 is formed by collecting the wool in a predetermined basis weight manner using a stacking conveyor, and the second layer 23 is formed by stacking the wool on the first layer 22 and collecting the wool in a predetermined basis weight manner, and then the third layer 24 is formed by stacking the wool on the second layer 23 and collecting the wool in a predetermined basis weight manner, and then the adhesive is hardened in an oven. Then, the wool is cut, trimmed, cut in the short side direction of the product, etc., and the glass wool blanket of a predetermined size is formed.

(Density of thermal insulation and sound absorbing materials)

The block density of the heat insulating sound absorbing material 21 of this embodiment is 10-20 kg/m ³ . In addition, the block density of the heat insulating sound absorbing material 21 here refers to the overall density including the first layer 22, the second layer 23 and the third layer 24. Since the block density of the heat insulating sound absorbing material 21 of this embodiment is also 10-20 kg/m ³ , the same effect as the first and second embodiments can be achieved. In addition, it is preferred that the density of the first layer 22 and the third layer 24 are equal, and it is more preferred that the density of the first layer 22, the second layer 23 and the third layer 24 are equal.

(Length load average fiber diameter of inorganic fiber)

The inorganic fiber block that constitutes the heat insulating sound absorbing material 21 of this embodiment has a length load average fiber diameter of 2.0 to 8.7 μm. More preferably, the inorganic fiber block that constitutes the heat insulating sound absorbing material 21 of this embodiment has a length load average fiber diameter of 3.8 to 5.3 μm. In addition, the length load average fiber diameter of the block that constitutes the heat insulating sound absorbing material 21 here refers to the entire length load average fiber diameter including the first layer 22, the second layer 23, and the third layer 24. In this embodiment, the inorganic fiber length load average fiber diameter is also 2.0 to 8.7 μm, preferably 3.8 to 5.3 μm. Furthermore, the fiber length is preferably 20mm~200mm. The longer the fiber length, the easier it is to improve the rigidity. By doing so, the same effect as the first and second embodiments can be achieved.

In this embodiment, the length load average fiber diameter of the inorganic fibers of the first layer 22 and the third layer 24 is larger than the length load average fiber diameter of the inorganic fibers of the second layer 23 by 0.1 to 3.0 μm. If the difference between the length load average fiber diameter of the inorganic fibers of the first layer 22 and the third layer 24 and the length load average fiber diameter of the inorganic fibers of the second layer 23 is less than 0.1 μm, sufficient hardness cannot be obtained and workability cannot be improved. Furthermore, if the difference between the average fiber diameter of the length load of the inorganic fibers of the first layer 22 and the third layer 24 and the average fiber diameter of the length load of the inorganic fibers of the second layer 23 is greater than 3.0 μm, the sound insulation performance will be reduced. In contrast, according to this embodiment, since the average fiber diameter of the length load of the inorganic fibers of the first layer 22 and the third layer 24 is 0.1 to 3.0 μm larger than the average fiber diameter of the length load of the inorganic fibers of the second layer 23, the heat insulating and sound absorbing material 21 has sufficient hardness to improve the construction performance and improve the sound insulation performance.

Furthermore, in this embodiment, the inorganic fiber length load average fiber diameter of the first layer 22 and the third layer 24, which are the outermost layers, is 4.3 to 7.0 μm. If the length load average fiber diameter of the first layer 22 and the third layer 24 is less than 4.3 μm, sufficient hardness cannot be obtained and workability cannot be improved. Moreover, if the length load average fiber diameter of the first layer 22 and the third layer 24 is greater than 7.0 μm, although the hardness is improved, the sound insulation performance will be reduced. In contrast, according to this embodiment, since the length-load average fiber diameter of the inorganic fibers of the first layer 22 and the third layer 24 is 4.3~7.0μm, sufficient hardness can be obtained, which can improve the construction performance and also improve the sound insulation performance.

(Length load fiber diameter distribution of inorganic fibers)

The block constituting the heat insulating sound absorbing material 21 of this embodiment contains 20-66% of inorganic fibers having a length-load average fiber diameter of less than 4.0 μm, and contains 13-58% of inorganic fibers having a length-load average fiber diameter of 7.0 μm or more. In addition, the total of inorganic fibers less than 4.0 μm , inorganic fibers greater than 4.0 μm and less than 7.0 μm , and inorganic fibers greater than 7.0 μm is 100%. More preferably, the block contains 13-33% of inorganic fibers having a length-load average fiber diameter of 7.0 μm or more. Particularly preferably, the block contains 41-66% of inorganic fibers having a length-load average fiber diameter less than 4.0 μm. In addition, the "length load fiber diameter distribution of the heat insulating sound absorbing material 21" here refers to the entire length load fiber diameter distribution including the first layer 22, the second layer 23 and the third layer 24. In addition, the inorganic fiber ratio in each length load average fiber diameter range here represents the count ratio (count %) as in the first embodiment. According to this embodiment, by having the above-mentioned fiber diameter distribution, the same effect as the first and second embodiments can be achieved.

(Inorganic fiber)

Inorganic fiber is a fiber-shaped component made of inorganic materials such as glass wool, rock wool, and slag wool. Other materials can be used. However, if construction performance and cost are considered, glass wool is preferred.

(Adhesive)

The material of the binder used to aggregate the inorganic fibers can be freely selected on the premise of a thermosetting resin. For example, phenol resin, urea resin, melamine resin, resorcinol resin, acrylic resin, polyester resin, sugar resin, starch resin, etc. can be selected. The above-mentioned binder preferably contains a thermosetting resin that is hardened by a reaction selected from the group consisting of amidation reaction, imidization reaction, esterification reaction, and ester exchange reaction.

The weight ratio of the adhesive (resin content) of the block constituting the heat-insulating sound-absorbing material 21 is preferably 1.0 to 8.5% by weight relative to the weight of the block. In addition, the "weight ratio of the adhesive of the block constituting the heat-insulating sound-absorbing material 21" referred to herein refers to the weight ratio of the entire adhesive including the first layer 22, the second layer 23 and the third layer 24. According to this embodiment, by setting the weight ratio (resin content) of the adhesive to 1.0 to 8.5% by weight, the same effect as the first and second embodiments can be achieved. In addition, in order to adjust the hardness, the weight ratio of the adhesive of the first layer, the second layer and the third layer can also be adjusted individually within the above range.

Furthermore, in this embodiment, the adhesive strength of the adhesive is preferably 3.6-6.1 N/mm ² . According to this embodiment, by setting the adhesive strength of the adhesive to 3.6-6.1 N/mm ² , the same effect as the first and second embodiments can be achieved.

<Fourth Implementation Form>

The following is a description of the partition wall of the fourth embodiment of the present invention. The partition wall of the fourth embodiment contains the heat insulation and sound absorbing material described in the first to third embodiments in the hollow part of the wall.

FIG. 4 is a perspective view of a partition wall of the fourth embodiment of the present invention. FIG. 5 is a horizontal cross-sectional view of a partition wall of the fourth embodiment of the present invention. As shown in FIG. 4 , the partition wall 100 includes: a slat 110 formed between a floor structure 101 and a roof structure 102 of a building, and a surface material 120 constructed from the floor structure 101 to the roof structure 102 on both sides of the slat 110.

The slats 110 include: a lower groove 111 disposed on the ground structure 101 of the building, an upper groove 112 fixed on the roof structure 102, and a column 114 vertically arranged between the lower groove 111 and the upper groove 112.

The lower trough 111 is, for example, a steel strip member with a U-shaped cross section, and is disposed on the ground structure 101 in an upwardly open manner. The lower trough 111 is fixed to the ground structure 101 by cement nails, etc., and optionally by a trough support, etc.

The upper groove 112 is, for example, a steel strip member with a U-shaped cross section, and is fixed to the bottom of the roof structure 102 with an opening facing downward. In addition, the upper groove 112 is arranged parallel to the lower groove 111 and directly above the lower groove 111. The upper groove 112 is fixed to the roof structure 102 by cement nails, etc., and if necessary, by a groove support, etc.

The column 114 is a steel strip member with two side surfaces 114A and 114B erected from the two ends of the bottom to form a U-shaped cross-section, and is vertically erected across the lower groove 111 and the upper groove 112.

In this embodiment, the columns 114 are set up using the single groove/staggered column method. That is, the columns 114 are set up in a staggered configuration (staggered configuration in the vertical direction of the wall) in the horizontal direction of the slats 110. More specifically, between the lower groove 111 and the upper groove 112, there are alternately set up: columns 114 configured in a manner that one side surface 114A abuts against one side surface 111A, 112A of the lower groove 111 and the upper groove 112, and columns 114 configured in a manner that the other side surface 114B abuts against the other side surface 111B, 112B of the lower groove 111 and the upper groove 112.

The surface material 120 is composed of a laminate of a bottom plate 121 and a panel 122. At least one of the bottom plate 121 and the panel 122, preferably both, is a plate of a non-combustible material or a flame-resistant secondary material, which can be a single plate or a laminate of plates. The "non-combustible material" and "flame-resistant secondary material" referred to herein are materials in accordance with Article 2, Paragraph 9 of the Building Standards Act, and flame-resistant secondary materials are materials in accordance with Article 1, Paragraph 5 of the Enforcement Decree of the Building Standards Act.

Non-combustible materials are materials that, when heated by fire due to an ordinary fire, will meet the following requirements within 20 minutes after the start of heating: (1) will not burn; (2) will not deform, melt, crack, or otherwise damage that would hinder fire prevention; and (3) will not produce smoke or gas that would hinder evacuation.

Flame-resistant Class II materials are materials that, when heated by ordinary fires, will meet the following requirements within 10 minutes after the start of heating: (1) will not burn; (2) will not deform, melt, crack, or otherwise damage that would impede fire prevention; and (3) will not produce smoke or gas that would impede evacuation.

The base plate 121 and the panel 122 are preferably made of, for example, gypsum board, reinforced gypsum board, hard gypsum board or fiber-reinforced gypsum board. The thickness of the surface material 120 is preferably greater than 20 mm.

In this embodiment, each base plate 121 is mounted on a column 114 separated by a self-tapping screw 130. In addition, the panel 122 is mounted on the outer side of the base plate 121 by adhesive or a nail gun. With this structure, a wall hollow portion 140 is formed between the two side surface materials 120 on the slat 110.

The heat insulating and sound absorbing materials 1, 11, 21 are disposed in the hollow wall portion 140. The lower edge and the upper edge of the heat insulating and sound absorbing materials 1, 11, 21 abut against the lower groove 111 and the upper groove 112 respectively, and the two lateral edges of the heat insulating and sound absorbing materials 1, 11, 21 abut against the adjacent pillars 114. For example, the lower edge and the upper edge of the heat insulating and sound absorbing materials 1, 11, 21 are respectively embedded in the lower groove 111 and the upper groove 112 and abut against the bottom of the lower groove 111 and the upper groove 112, or the heat insulating and sound absorbing materials abut against the outer sides of the lower groove 111 and the upper groove 112 when they are not embedded in the lower groove 111 and the upper groove 112. For example, one edge of the heat-insulating sound-absorbing material 1, 11, 21 is embedded in the column 114 and abuts against the bottom of the column 114, and one edge of the heat-insulating sound-absorbing material 1, 11, 21 abuts against the outside of the bottom of the column 114. Alternatively, the heat-insulating sound-absorbing material can abut against the outer side of the column when it is not embedded in the column. In addition, if the column is square, the heat-insulating sound-absorbing material can also abut against the outer side of the column when it is not embedded in the column.

According to this embodiment, the partition wall 100 contains the heat insulating and sound absorbing materials 1, 11, 21 in the wall hollow part 140. According to this embodiment, since the heat insulating and sound absorbing materials 1, 11, 21 are lightweight, the construction performance can be improved, and the heat insulating and sound absorbing materials 1, 11, 21 have a hardness that can be constructed, so as to improve the construction performance and ensure sufficient sound insulation performance of the partition wall 100.

Furthermore, according to this embodiment, the column 114 is established by using a single groove/staggered column method. Therefore, the heat insulation and sound absorption materials 1, 11, 21 can be easily arranged in the partition wall 100.

<Fifth Implementation Form>

The following is a description of the partition wall of the fifth embodiment of the present invention. The partition wall of the fifth embodiment contains the heat insulation and sound absorbing material described in the first to third embodiments in the hollow part of the wall. In addition, the column setting method of the partition wall of the fifth embodiment is to use the single groove/common column method. In addition, the same component symbols are given to the same structure as the fourth embodiment and detailed description is omitted.

FIG6 shows a horizontal cross-sectional view of the partition wall of the fifth embodiment of the present invention. The partition wall 200 of the fifth embodiment comprises: a slat 110 and a surface material 120 constructed on both sides of the slat 110.

The configuration of the slat 110 is different from that of the fourth embodiment in that the column 214 is arranged. In this embodiment, the column 214 is also provided with two side surfaces 214A and 214B from the two ends of the bottom and has a square cross-sectional shape, for example, and is vertically spanned between the lower groove 111 and the upper groove 112.

The columns 214 of this embodiment are constructed using the single slot/common spacer method. That is, the columns 214 are arranged in a straight line, and the two side surfaces 214A and 214B of the lower end of the columns 214 abut against the two side surfaces 111A and 111B of the lower slot 111, and the two side surfaces of the upper end of the columns 214 abut against the two side surfaces 112A and 112B of the upper slot 112.

In this embodiment, the surface material 120 is the bottom plate 121 on both sides of the slat 110, and is respectively installed on the two side surfaces 214A and 214B of each column 214 using, for example, self-tapping screws 130. In addition, the panel 122 is respectively installed on the outer side of the bottom plate 121 using, for example, adhesives and nail guns. With this structure, the slat 110 forms a wall hollow part 140 between the two side surface materials 120.

The heat insulating and sound absorbing materials 1, 11, 21 are disposed in the hollow wall portion 140. The lower edge and upper edge of the heat insulating and sound absorbing materials 1, 11, 21 abut against the lower groove 111 and the upper groove 112 respectively, and the two lateral edges of the heat insulating and sound absorbing materials 1, 11, 21 abut against the adjacent pillars 214. For example, the lower edge and upper edge of the heat insulating and sound absorbing materials 1, 11, 21 are respectively embedded in the lower groove 111 and the upper groove 112 and abut against the bottom of the lower groove 111 and the upper groove 112, or the heat insulating and sound absorbing materials abut against the outer sides of the lower groove 111 and the upper groove 112 when they are not embedded in the lower groove 111 and the upper groove 112. Furthermore, when the column is in a U-shaped cross-section, one edge of the heat-insulating sound-absorbing material can be embedded in the column and abut against the bottom of the column, while the other edge of the heat-insulating sound-absorbing material abuts against the outside of the bottom of the column. Alternatively, the heat-insulating sound-absorbing material can also abut against the outer side of the column when it is not embedded in the column.

According to this implementation form, the same effect as the fourth implementation form can be achieved.

<Sixth Implementation Form>

The following is a description of the partition wall of the sixth embodiment of the present invention. The partition wall of the sixth embodiment contains the heat insulation and sound absorbing material described in the first to third embodiments in the hollow part of the wall. In addition, the column setting method of the partition wall of the sixth embodiment is to use the single groove/common column method to nail the gasket in a staggered arrangement. In addition, the same component symbols are given to the same structure as the fourth embodiment and detailed descriptions are omitted.

FIG. 7 shows a horizontal cross-sectional view of the partition wall of the sixth embodiment of the present invention. In addition, in FIG. 7, the inner wall surfaces of the lower groove 111 and the upper groove 112 are indicated by dotted lines. The partition wall 300 of the sixth embodiment has: a slat 110, and a surface material 120 constructed on both sides of the slat 110.

The configuration of the slat 110 is different from that of the fourth embodiment in that the column 114 is arranged. In this embodiment, the column 114 is also provided with two side surfaces 114A and 114B from the two ends of the bottom and has a U-shaped cross-section, for example, and is vertically spanned between the lower groove 111 and the upper groove 112.

The columns 114 of this embodiment are set up by staggered arrangement of nail pads using the single groove/common column method. That is, the columns 114 are arranged in a straight line, and the two side surfaces 114A and 114B of the lower end of the column 114 abut against the two side surfaces 111A and 111B of the lower groove 111, and the two side surfaces of the upper end of the column 114 abut against the two side surfaces 112A and 112B of the upper groove 112.

In this embodiment, the surface material 120 is installed on the separated columns 114 by each bottom plate 121 using, for example, self-tapping screws 130. At this time, a nail pad 132 is arranged between the side surfaces 114A and 114B of the column 114 and the bottom plate 121. The nail pad 132 is alternately installed on one side surface 114A and the other side surface 114B of the column 114 to form a staggered arrangement. With this structure, a wall hollow portion 140 is formed between the two side surface materials 120 on the slat 110.

The heat insulating and sound absorbing materials 1, 11, 21 are disposed in the hollow wall portion 140. The lower edge and the upper edge of the heat insulating and sound absorbing materials 1, 11, 21 abut against the lower groove 111 and the upper groove 112 respectively, and the two lateral edges of the heat insulating and sound absorbing materials 1, 11, 21 abut against the adjacent pillars 114. For example, the lower edge and the upper edge of the heat insulating and sound absorbing materials 1, 11, 21 are respectively embedded in the lower groove 111 and the upper groove 112 and abut against the bottom of the lower groove 111 and the upper groove 112, or the heat insulating and sound absorbing materials abut against the outer sides of the lower groove 111 and the upper groove 112 when they are not embedded in the lower groove 111 and the upper groove 112. For example, one edge of the heat-insulating sound-absorbing material 1, 11, 21 is embedded in the column 114 and abuts against the bottom of the column 114, and one edge of the heat-insulating sound-absorbing material 1, 11, 21 abuts against the outside of the bottom of the column 114. Alternatively, the heat-insulating sound-absorbing material can abut against the outer side of the column when it is not embedded in the column. In addition, if the column is square, the heat-insulating sound-absorbing material can also abut against the outer side of the column when it is not embedded in the column.

According to this implementation form, the same effect as the fourth implementation form can be achieved.

<7th Implementation Form>

The following is a description of the partition wall of the seventh embodiment of the present invention. The partition wall of the seventh embodiment contains the heat insulation and sound absorbing material described in the first to third embodiments in the hollow part of the wall. In addition, the column setting method of the partition wall of the seventh embodiment is to use the single groove/staggered column method to nail the gasket plate configuration for setting. In addition, the same component symbols are given to the same structure as the fourth embodiment and detailed description is omitted.

FIG8 is a horizontal cross-sectional view of the partition wall of the seventh embodiment of the present invention. In addition, in FIG8, the inner wall surfaces of the lower groove 111 and the upper groove 112 are indicated by dotted lines. The partition wall 400 of the seventh embodiment has: a slat 110, and a surface material 120 constructed on both sides of the slat 110.

The configuration of the slat 110 is different from that of the fourth embodiment in that the arrangement of the nail pad is different. In this embodiment, the column 114 is also provided with two side surfaces 114A and 114B from the two ends of the bottom and has a U-shaped cross-section, for example, and is vertically spanned between the lower groove 111 and the upper groove 112.

In this embodiment, the column 114 is set up by nailing the pad plate using the single groove/staggered column method. That is, the column 114 is set up in a staggered configuration (staggered configuration in the vertical direction of the wall) in the horizontal direction of the slat 110. More specifically, between the lower groove 111 and the upper groove 112, there are alternately set up: a column 114 with one side 114A abutting against one side 111A, 112A of the lower groove 111 and the upper groove 112, and a column 114 with the other side 114B abutting against the other side 111B, 112B of the lower groove 111 and the upper groove 112.

In this embodiment, the surface material 120 is installed on the separated columns 114 by each bottom plate 121 using, for example, self-tapping screws 130. At this time, a nail pad 132 is arranged between the side surfaces 114A and 114B of the column 114 and the bottom plate 121. The nail pad 132 is alternately installed on one side surface 114A and the other side surface 114B of the column 114 to form a staggered arrangement. With this structure, a wall hollow portion 140 is formed between the two side surface materials 120 on the slat 110.

The heat insulating and sound absorbing materials 1, 11, 21 are disposed in the hollow wall portion 140. The lower edge and the upper edge of the heat insulating and sound absorbing materials 1, 11, 21 abut against the lower groove 111 and the upper groove 112, respectively, and the two lateral edges of the heat insulating and sound absorbing materials 1, 11, 21 abut against the adjacent pillars 114. For example, the lower edge and the upper edge of the heat insulating and sound absorbing materials 1, 11, 21 are respectively embedded in the lower groove 111 and the upper groove 112 and abut against the bottom of the lower groove 111 and the upper groove 112, or the heat insulating and sound absorbing materials are respectively abutted against the outer sides of the lower groove 111 and the upper groove 112 when they are not embedded in the lower groove 111 and the upper groove 112. For example, one edge of the heat-insulating sound-absorbing material 1, 11, 21 is embedded in the column 114 and abuts against the bottom of the column 114, and one edge of the heat-insulating sound-absorbing material 1, 11, 21 abuts against the outside of the bottom of the column 114. Alternatively, the heat-insulating sound-absorbing material can abut against the outer side of the column when it is not embedded in the column. In addition, if the column is square, the heat-insulating sound-absorbing material can also abut against the outer side of the column when it is not embedded in the column.

According to this implementation form, the same effect as the fourth implementation form can be achieved.

<8th Implementation Form>

The following is a description of the partition wall of the 8th embodiment of the present invention. The partition wall of the 8th embodiment contains the heat insulation and sound absorbing material described in the 1st to 3rd embodiments in the hollow part of the wall. In addition, the column setting method of the partition wall of the 8th embodiment is to use the double groove/parallel column method. In addition, the same component symbols are given to the same structure as the 4th embodiment and detailed description is omitted.

FIG9 shows a horizontal cross-sectional view of the partition wall of the eighth embodiment of the present invention, in which the columns are staggered. In addition, in FIG9, the inner wall surfaces of the lower groove 111 and the upper groove 112 are indicated by dotted lines. The partition wall 500 of the eighth embodiment also has: a slat 110, and a surface material 120 constructed on both sides of the slat 110.

The configuration of the slat 110 is different from that of the fourth embodiment in that the upper groove, the lower groove and the column 114 are arranged in parallel to the wall thickness direction. In this embodiment, the column 114 is provided with two side surfaces 114A and 114B from the two ends of the bottom and has a U-shaped cross-section, for example, and is vertically spanned between the lower groove 111 and the upper groove 112.

In this embodiment, the column 114 is set up using the double groove/parallel column method. The column 114 is set in the horizontal direction of the slat 110. More specifically, the column 114 is set up in a staggered manner between one of the lower grooves 111 in a pair of lower grooves 111 and one of the upper grooves 112 in a pair of upper grooves 112 (for example, between the lower groove 111 and the upper groove 112 at the bottom in FIG. 9), and between the other lower groove 111 in a pair of lower grooves 111 and the other upper groove 112 in a pair of upper grooves 112 (for example, between the lower groove 111 and the upper groove 112 at the top in FIG. 9).

In this embodiment, the surface material 120 is mounted on the column 114 by each bottom plate 121 using, for example, self-tapping screws 130. In addition, the panel 122 is mounted on the outer side of the bottom plate 121 using, for example, adhesive or a nail gun. With this structure, a wall hollow portion 140 is formed between the two side surface materials 120 on the slat 110.

The heat-insulating and sound-absorbing materials 1, 11, 21 are arranged in the hollow wall portion 140. The lower edge and the upper edge of the heat-insulating and sound-absorbing materials 1, 11, 21 are respectively in contact with the lower groove 111 and the upper groove 112. For example, the lower edge and the upper edge of the heat-insulating and sound-absorbing materials 1, 11, 21 are respectively embedded in the lower groove 111 and the upper groove 112 and in contact with the bottom of the lower groove 111 and the upper groove 112, or the heat-insulating and sound-absorbing materials are respectively in contact with the outer sides of the lower groove 111 and the upper groove 112 when not embedded in the lower groove 111 and the upper groove 112. In addition, the heat-insulating and sound-absorbing materials 1, 11, 21 are arranged in the hollow wall portion 140 in a manner avoiding the pillar 114. In addition, the heat-insulating and sound-absorbing materials do not need to be continuous strips of heat-insulating and sound-absorbing materials, and multiple heat-insulating and sound-absorbing materials can also be arranged. Furthermore, the heat-insulating and sound-absorbing material can be arranged between the columns of each row, or both lateral edges of the heat-insulating and sound-absorbing material can abut against the adjacent columns, or one edge of the heat-insulating and sound-absorbing material can be embedded in the column. Furthermore, if the column is square, the heat-insulating and sound-absorbing material can also abut against the outer side of the column when it is not embedded in the column.

According to this implementation form, the same effect as the fourth implementation form can be achieved.

<9th Implementation Form>

The following is a description of the partition wall of the 9th embodiment of the present invention. The partition wall of the 9th embodiment contains the heat insulation and sound absorbing material described in the 1st to 3rd embodiments in the hollow part of the wall. In addition, the column setting method of the partition wall of the 9th embodiment is to use the double groove/parallel column method, which is different from the 8th embodiment only in that the columns are arranged at the same position. In addition, the same component symbols are given to the same structure as the 8th embodiment and detailed description is omitted.

FIG. 10 is a horizontal cross-sectional view of the partition wall of the ninth embodiment of the present invention, in which the columns are arranged at the same position. In addition, in FIG. 10, the inner wall surfaces of the sides of the lower groove 111 and the upper groove 112 are indicated by dotted lines. The partition wall 600 of the ninth embodiment also has: a slat 110, and a surface material 120 constructed on both sides of the slat 110.

The structure of the slats 110 is different from the eighth embodiment only in the arrangement of the columns 114. In this embodiment, the columns 114 are arranged between one of the lower grooves 111 and one of the upper grooves 112, and between the other lower groove 111 and the other upper groove 112, and each column 114 is set at the same position.

In this embodiment, the surface material 120 is mounted on the column 114 by each bottom plate 121 using, for example, self-tapping screws 130. In addition, the panel 122 is mounted on the outer side of the bottom plate 121 using, for example, adhesive or a nail gun. With this structure, a wall hollow portion 140 is formed between the two side surface materials 120 on the slat 110.

The heat-insulating and sound-absorbing materials 1, 11, 21 are disposed in the hollow wall portion 140. The lower edge and the upper edge of the heat-insulating and sound-absorbing materials 1, 11, 21 abut against the lower groove 111 and the upper groove 112, respectively. For example, the lower edge and the upper edge of the heat-insulating and sound-absorbing materials 1, 11, 21 are respectively embedded in the lower groove 111 and the upper groove 112 and abut against the bottom of the lower groove 111 and the upper groove 112, or the heat-insulating and sound-absorbing materials abut against the outer sides of the lower groove 111 and the upper groove 112 when they are not embedded in the lower groove 111 and the upper groove 112, respectively. In addition, the heat-insulating and sound-absorbing materials 1, 11, 21 are disposed between each row of columns 114, and the two lateral edges of the heat-insulating and sound-absorbing materials 1, 11, 21 abut against the adjacent columns 114. For example, one side edge of the heat-insulating sound-absorbing material 1, 11, 21 is embedded in the column 114 and abuts against the bottom of the column 114, while the other side edge of the heat-insulating sound-absorbing material 1, 11, 21 abuts against the outside of the bottom of the column 114. In addition, the heat-insulating sound-absorbing material may not be embedded in the column but abut against the column. In addition, as shown in FIG. 10, the heat-insulating sound-absorbing material may be arranged in the hollow part of the wall of each groove, or the heat-insulating sound-absorbing material may be arranged only in the hollow part of the wall of a single groove. In addition, if the column is square, the heat-insulating sound-absorbing material may abut against the outer side of the column when it is not embedded in the column.

According to this implementation form, the same effect as the fourth implementation form can be achieved.

The above is a detailed description of the implementation form of the present invention. However, the present invention is not limited to the above implementation form, and various changes can be made within the scope of the present invention described in the scope of the patent application.

[Implementation example]

The following describes the implementation examples and comparative examples of the heat-insulating sound-absorbing material of the present invention.

(Examples 1 and 7)

Embodiments 1 and 7 correspond to the three-layer structure heat insulation and sound absorption material of the third embodiment described with reference to FIG. 3. Embodiments 1 and 7 are manufactured according to the manufacturing method described in the third embodiment.

(Examples 2 to 6)

Embodiments 2 to 6 correspond to the double-layer structure heat-insulating and sound-absorbing materials of the second embodiment described with reference to FIG. 2. Embodiments 2 to 6 are manufactured according to the manufacturing method described in the second embodiment.

(Examples 8 to 10)

Embodiments 8 to 10 are single-layer heat-insulating and sound-absorbing materials corresponding to the first embodiment described with reference to FIG. 1. Embodiments 8 to 10 are manufactured according to the manufacturing method described in the first embodiment.

(Comparison examples 1~3)

Comparative Examples 1 to 3 are single-layer heat-insulating and sound-absorbing materials, similar to Examples 8 to 10. Comparative Examples 1 to 3 are manufactured in accordance with the manufacturing method described in the first embodiment, similar to Examples 8 to 10.

(Determination of average fiber diameter under length load and fiber diameter distribution under length load)

For Examples 1 to 10 and Comparative Examples 1 to 3, the length load average fiber diameter of the block and the length load fiber diameter distribution were measured using a cottonscope HD manufactured by Cottonscope Pty Ltd. In addition, the length load average fiber diameter of each layer of Examples 1 to 7 was also measured in the same manner.

(Density measurement)

For Examples 1 to 10 and Comparative Examples 1 to 3, the density was measured according to the method of JIS A9521.

(Determination of adhesive strength)

For Examples 1 to 10 and Comparative Examples 1 to 3, the strength of the adhesive used was measured. The strength of the adhesive can be measured according to the shell mold tensile strength measurement method including the following steps. The steps are: (1) adding 2.7% by weight of a binder into 150g of glass beads and mixing to obtain a mixture; (2) uniformly filling the mixture obtained in step (1) into an iron mold, heating the mixture in an oven to harden the binder, and obtaining a shell mold test piece (thickness 6mm×width 27mm×length 74mm, but the width of the clamping part is 42mm); (3) taking the shell mold test piece obtained in step (2) out of the oven and cooling it to room temperature; and (4) using a universal material testing machine to measure the tensile strength of the shell mold test piece at a tensile speed of 5mm/min.

(Determination of resin content)

For each of Examples 1 to 10 and Comparative Examples 1 to 3, the resin content was measured. The resin content was measured by performing the following steps: (1) cutting the glass wool blanket into 100 mm × 100 mm test pieces and measuring the weight (Wa); (2) placing the cut test pieces into an electric furnace set at 530°C to decompose the binder components; and (3) taking out the test pieces after the binder components were decomposed from the electric furnace, measuring the weight (Wb), and then calculating the resin content from the difference between the measured value (Wa) in step (1), and then calculating the resin content by the following formula.

Resin content (weight %) = {(Wa-Wb)/Wa}×100

The length load average fiber diameter, density, length load fiber diameter distribution, binder strength, resin content, layer structure in the thickness direction, length load average fiber diameter of each layer, and thickness ratio of each layer of Examples 1 to 10 and Comparative Examples 1 to 3 are as follows.

For the obtained Examples 1 to 10 and Comparative Examples 1 to 3, workability/cost, construction performance (skin irritation), and construction performance (product hardness) were evaluated according to the following method.

(operational/cost)

If the weight per unit area of the inorganic fiber heat-insulating and sound-absorbing material is too large, the workability and loading efficiency will be reduced. Also, if the weight per unit area is too large, the cost will increase. Here, for Examples 1 to 10 and Comparative Examples 1 to 3, the weight per unit area of the heat-insulating and sound-absorbing material when the product thickness is 50 mm is measured, and the workability/cost is evaluated as follows.

◎: Weight per unit area is less than 800g/ ^m2

○: 800g/ ^m2 or more ~ less than 1000g/ ^m2

△: 1000g/ ^m2 or more and less than 1200g/ ^m2

×: 1200g/ ^m2 or more

(Construction properties (skin irritation))

If the stinging sensation (skin irritation) when touching the inorganic fiber heat-insulating sound-absorbing material is too strong, the workability will be reduced. Therefore, for Examples 1 to 10 and Comparative Examples 1 to 3, 10 monitors touched the surface of the heat-insulating sound-absorbing material, evaluated the skin irritation according to the 5-stage SD evaluation scale 1 to 5, and conducted a sensory test, and evaluated the workability (skin irritation) as follows.

◎: The average value of 10 monitors is less than 2.0

○: The average value of 10 monitors is 2.0 or more and less than 3.0

△: The average value of 10 monitors is 3.0 or more and less than 4.0

×: The average value of 10 monitors is above 4.0

(Workability (product hardness))

If the hardness of the inorganic fiber heat-insulating and sound-absorbing material is too low, the workability will be reduced. Therefore, for Examples 1 to 10 and Comparative Examples 1 to 3, the following steps are performed: (1) placing the heat-insulating and sound-absorbing material test piece on the flat surface of the measuring table ; (2) gently pressing the rear part in the length direction with the hand and pushing it at a speed of 10 cm/second to slide on the table; (3) when the front end of the test piece touches the sliding table at an angle of 45°, use a ruler to read the drooping length, and evaluate the workability (product hardness) as follows. However, the drooping length standard is all set to the case where the product thickness is 50 mm.

◎: The drooping length is more than 580mm,

○: The drooping length is more than 530mm and less than 580mm

△: The drooping length is more than 480mm and less than 530mm

×: The drooping length is less than 480mm

The following table shows the workability/cost, construction performance (skin irritation), and construction performance (product hardness) of Examples 1 to 10 and Comparative Examples 1 to 3.

As shown in Tables 2 and 3, Comparative Example 2, in which the density is set to 24 kg/m ³ , is too heavy, resulting in reduced workability. Also, in Comparative Example 1, in which the fiber diameter is less than 7 μm, the product hardness is insufficient, resulting in reduced workability. Also, as shown in Comparative Example 3, when the length load average fiber diameter is 8.7 μm, the skin irritation is greater, resulting in reduced workability.

In contrast, Examples 1 to 10 can achieve sufficient workability and construction properties (skin irritation, product hardness).

The embodiments and comparative examples of the partition wall of the present invention are described.

FIG. 4 shows a perspective view of the partition wall of the present invention. FIG. 5 shows a horizontal cross-sectional view of the partition wall of the present invention.

The slats 110 are composed of a lower groove 111 disposed on a ground structure 101 such as a ground keel, an upper groove 112 fixed to the bottom of a roof structure 102 such as a light steel keel, and a plurality of vertical columns 114 vertically arranged between the lower groove 111 and the upper groove 112. The columns 114 are arranged in a staggered manner along the wall core as shown in FIG. 5

The first floor plate 121 is fixed to the column 114 by self-tapping screws 130, and the second floor panel 122 is fixed to the first floor plate 121 by nail gun and adhesive. A wall hollow part 140 is formed between the first floor plate 121 constructed on both sides of the slats, and the wall hollow part 140 is filled with heat insulation and sound absorption materials.

The partition wall components of Example 11 of the present invention are constructed using the following building materials: Lower trough 111: Light steel (steel trough) C-75mm×40mm×0.8mm

Upper groove 112: Light steel (steel groove) C-75mm×40mm×0.8mm

Column 114: Light steel (steel column) C-65mm×45mm×0.8mm

Baseboard 121: Reinforced gypsum board, thickness 21mm (product of Yoshino Gypsum Co., Ltd. "TIGER BOARD (registered trademark) Type Z")

Panel 122: Hard gypsum board, thickness 9.5mm ("Tiger Super Hard (registered trademark)" manufactured by Yoshino Gypsum Co., Ltd.)

Heat-insulating and sound-absorbing material 11 (Example 2): Length-load average fiber diameter 4.3 μm, density 14 kg/m ³ , thickness 50 mm (“Stud Aclear” manufactured by ASAHI FIBER GLASS Co., Ltd.)

Furthermore, the heat-insulating sound-absorbing material 11 disposed in the partition wall adopts a double-layer structure corresponding to the second embodiment described in reference to FIG. 2 and is manufactured according to the manufacturing method described in the second embodiment.

The partition wall components of Comparative Example 4 compared with Example 11 of the present invention use the following building materials: Lower trough 111: Light steel (steel trough) C-75mm×40mm×0.8mm

Upper groove 112: Light steel (steel groove) C-75mm×40mm×0.8mm

Column 114: Light steel (steel column) C-65mm×45mm×0.8mm

Baseboard 121: Reinforced gypsum board, thickness 21mm (product of Yoshino Gypsum Co., Ltd. "TIGER BOARD (registered trademark) Type Z")

Panel 122: Hard gypsum board, thickness 9.5mm ("Tiger Super Hard (registered trademark)" manufactured by Yoshino Gypsum Co., Ltd.)

Heat-insulating and sound-absorbing material 1 (Comparative Example 2): Length-load average fiber diameter 7.8 μm, density 24 kg/m ³ , thickness 50 mm ("GLASRON (registered trademark) fiber cotton" manufactured by ASAHI FIBER GLASS Co., Ltd.)

Furthermore, the heat-insulating sound-absorbing material 1 disposed in the partition wall adopts a single-layer structure corresponding to the first embodiment described in reference to FIG. 1 and is manufactured according to the manufacturing method described in the first embodiment.

The partition wall components of Example 12 of the present invention are constructed using the following building materials: Lower trough 111: Light steel (steel trough) C-75mm×40mm×0.8mm

Upper groove 112: Light steel (steel groove) C-75mm×40mm×0.8mm

Column 114: Light steel (steel column) C-65mm×45mm×0.8mm

Baseboard 121: Reinforced gypsum board, thickness 12.5mm (product of Yoshino Gypsum Co., Ltd. "TIGER BOARD (registered trademark) Type Z")

Panel 122: Hard gypsum board, thickness 9.5mm ("Tiger Hyper Hard C (registered trademark)" manufactured by Yoshino Gypsum Co., Ltd.)

Heat-insulating and sound-absorbing material 11 (Example 2): Length-load average fiber diameter 4.3 μm, density 14 kg/m ³ , thickness 50 mm (“Stud Aclear” manufactured by ASAHI FIBER GLASS Co., Ltd.)

Furthermore, the heat-insulating sound-absorbing material 11 disposed in the partition wall adopts a double-layer structure corresponding to the second embodiment described in reference to FIG. 2 and is manufactured according to the manufacturing method described in the second embodiment.

The partition wall components of Comparative Example 5 compared with Example 12 of the present invention use the following building materials: Lower trough 111: Light steel (steel trough) C-75mm×40mm×0.8mm

Upper groove 112: Light steel (steel groove) C-75mm×40mm×0.8mm

Column 114: Light steel (steel column) C-65mm×45mm×0.8mm

Baseboard 121: Reinforced gypsum board, thickness 12.5mm (product of Yoshino Gypsum Co., Ltd. "TIGER BOARD (registered trademark) Type Z")

Panel 122: Hard gypsum board, thickness 9.5mm ("Tiger Hyper Hard C (registered trademark)" manufactured by Yoshino Gypsum Co., Ltd.)

Heat-insulating and sound-absorbing material 1 (Comparative Example 2): Length-load average fiber diameter 7.8 μm, density 24 kg/m ³ , thickness 50 mm ("GLASRON (registered trademark) fiber cotton" manufactured by ASAHI FIBER GLASS Co., Ltd.)

Furthermore, the heat-insulating sound-absorbing material 1 disposed in the partition wall adopts a single-layer structure corresponding to the first embodiment described in reference to FIG. 1 and is manufactured according to the manufacturing method described in the first embodiment.

The partition wall components of Example 13 of the present invention are constructed using the following building materials: Lower trough 111: Light steel (steel trough) C-75mm×40mm×0.8mm

Upper groove 112: Light steel (steel groove) C-75mm×40mm×0.8mm

Column 114: Light steel (steel column) C-65mm×45mm×0.8mm

Baseboard 121: Reinforced gypsum board, thickness 12.5mm (product of Yoshino Gypsum Co., Ltd. "TIGER BOARD (registered trademark) Type Z")

Panel 122: Reinforced gypsum board, thickness 12.5mm (product of Yoshino Gypsum Co., Ltd. "TIGER BOARD (registered trademark) Type Z")

Heat-insulating and sound-absorbing material 11 (Example 2): Length-load average fiber diameter 4.3 μm, density 14 kg/m ³ , thickness 50 mm (“Stud Aclear” manufactured by ASAHI FIBER GLASS Co., Ltd.)

Furthermore, the heat-insulating sound-absorbing material 11 disposed in the partition wall adopts a double-layer structure corresponding to the second embodiment described in reference to FIG. 2 and is manufactured according to the manufacturing method described in the second embodiment.

The partition wall components of Comparative Example 6 compared with Example 13 of the present invention use the following building materials: Lower trough 111: Light steel (steel trough) C-75mm×40mm×0.8mm

Upper groove 112: Light steel (steel groove) C-75mm×40mm×0.8mm

Column 114: Light steel (steel column) C-65mm×45mm×0.8mm

Baseboard 121: Reinforced gypsum board, thickness 12.5mm (product of Yoshino Gypsum Co., Ltd. "TIGER BOARD (registered trademark) Type Z")

Panel 122: Reinforced gypsum board, thickness 12.5mm (product of Yoshino Gypsum Co., Ltd. "TIGER BOARD (registered trademark) Type Z")

Heat-insulating and sound-absorbing material 1 (Comparative Example 2): Length-load average fiber diameter 7.8 μm, density 24 kg/m ³ , thickness 50 mm ("GLASRON (registered trademark) fiber cotton" manufactured by ASAHI FIBER GLASS Co., Ltd.)

Furthermore, the heat-insulating sound-absorbing material 1 disposed in the partition wall adopts a single-layer structure corresponding to the first embodiment described in reference to FIG. 1 and is manufactured according to the manufacturing method described in the first embodiment.

(Sound insulation performance)

For the sound insulation performance (TLD value) of Examples 11 to 13 and Comparative Examples 4 to 6, the sound penetration loss of the wall alone was measured according to the measurement method specified in JIS A1416 (ISO140-3), and the measurement results were digitized using the evaluation method based on the sound insulation benchmark curve (D curve) specified by the Architectural Institute of Japan.

Table 4 below shows the sound insulation performance of Examples 11 to 13 and Comparative Examples 4 to 6.

From Table 4, it can be seen that the partition walls of Examples 11 to 13 can achieve sound insulation performance that is equal to or higher than the known partition structures of Examples 4 to 6.

In addition, it is known that when the length-load average fiber diameter is less than 4.3μm and the density is greater than 24kg/ ^m3 , the sound insulation performance will be improved.

11: Heat insulation and sound absorbing materials

12: Layer 1

13: Layer 2

Claims (14)

A heat insulating and sound absorbing material is a heat insulating and sound absorbing material composed of a block of inorganic fibers, wherein the density of the block is 10-20 kg/m ³ ; the length load average fiber diameter of the inorganic fibers in the block is 2.0-8.7 μm; the block contains 20-66% of inorganic fibers with a length load average fiber diameter of less than 4.0 μm and 13-58% of inorganic fibers with a length load average fiber diameter of 7.0 μm or more; the total of the inorganic fibers less than 4.0 μm, the inorganic fibers with a length load average fiber diameter of 4.0 μm or more and less than 7.0 μm, and the inorganic fibers with a length load average fiber diameter of 7.0 μm or more is 100%; the inorganic fibers are glass wool. As in claim 1, the heat-insulating sound-absorbing material, wherein the block is formed into a plate shape by laminating the first layer and the second layer; the length-load average fiber diameter of the inorganic fiber of the first layer is 0.1-3.0 μm larger than the length-load average fiber diameter of the inorganic fiber of the second layer. As in claim 1, the heat-insulating sound-absorbing material, wherein the block is formed into a plate shape by sequentially stacking the first layer, the second layer and the third layer; the length-load average fiber diameter of the inorganic fiber of the first layer and the third layer is 0.1-3.0 μm larger than the length-load average fiber diameter of the inorganic fiber of the second layer. As in claim 1, the heat-insulating sound-absorbing material, wherein the block is formed into a plate shape by laminating multiple layers; the length-load average fiber diameter of the outermost inorganic fiber in the multiple layers is 4.3~7.0μm. For example, the heat-insulating sound-absorbing material of claim 1, wherein the length-load average fiber diameter of the inorganic fiber of the block is 3.8~5.3μm. As in claim 1, the heat-insulating sound-absorbing material, wherein the block contains 13-33% of the inorganic fiber having a length-load average fiber diameter of 7.0 μm or more. As in claim 1, the heat-insulating sound-absorbing material, wherein the block contains 41-66% of inorganic fibers with a length-load average fiber diameter of less than 4.0 μm. As in claim 1, the heat-insulating sound-absorbing material, wherein the block contains 1.0-8.5 wt.% of a binder for agglomerating the inorganic fibers relative to the weight of the block; the binder strength of the binder is 3.6-6.1 N/ ^mm2 . As in claim 8, the heat-insulating sound-absorbing material, wherein the adhesive contains a thermosetting resin that is cured by a reaction selected from the group consisting of amidation reaction, imidization reaction, esterification reaction, and transesterification reaction. A partition wall contains the heat-insulating and sound-absorbing material of claim 1 in the hollow part of the wall. As in claim 10, the partition wall comprises: slats and face materials; the slats comprise: lower grooves arranged on the ground structure; upper grooves fixed on the roof structure; and columns vertically arranged between the lower grooves and the upper grooves by using single groove/staggered column method, single groove/common column method, single groove/common column method with staggered arrangement of nailed pads, single groove/staggered column method with nailed pads, or double groove/side-by-side column method; The face materials are constructed from the ground structure to the roof structure on both sides of the slats. As in claim 11, the partition wall, wherein the surface material is composed of a board of non-combustible material or flame-resistant secondary material, or a laminate of the same. As in claim 11, the partition wall, wherein the surface material is composed of gypsum board or fiber-reinforced gypsum board, or a laminate thereof. For example, the partition wall of claim 12, wherein the thickness of the surface material is greater than 20 mm.