JPH06235256A - Architecture panel - Google Patents

Abstract

PURPOSE:To heighten strength by eliminating deformation such as swelling or camber after a construction panel is manufactured. CONSTITUTION:Since a core material 3 composed of phenol foam is sandwiched between an obverse material 1 and a reverse material 2 through gas permeable nonwoven fabric 4, an anchor effect is exhibited, and adhesive strength between the obverse material 1, the reverse material 2 and the core material 3 is increased, and the nonwoven fabric 4 is made to function as a reinforcing material, and mechanical strength of an architecture panel A is improved. Condensed water remaining in the phenol foam is let to escape outside the architecture panel A through a recessed shape ventilating groove 6 of the gas permeable nonwoven fabric 4, and deformation (swelling or camber or the like of the surface) of the architecture panel A with the lapse of time after it is manufactured due to residual water, can be prevented.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention
A building panel that can be used as an outer wall material, roofing material, ceiling material, flooring material, partition material, fire door, etc., has no deformation such as swelling or warping after manufacturing, and has excellent strength (hereinafter referred to simply as "panel"). ) Is related to.

[0002]

2. Description of the Related Art In general, many panels, which are formed by sandwiching a core material made of phenol foam by using a front surface material and a back surface material molded in arbitrary shapes, have been devised and put on the market.

[0003]

However, the panel in which the phenol foam is simply sandwiched between the front surface material and the back surface material as described above uses the synthetic resin foam as the core material, so the strength is weak, and the bending strength and resistance are high. In addition to being poor in wind pressure strength, the installation pitch on the body at the time of construction was shortened, resulting in poor workability. Further, when a stock solution of resol-type phenol and a curing agent are mixed and discharged and reaction foaming is performed to form a core material, condensed water in the reaction is several tens percent of the weight in the phenol foam. It is retained, and after the curing of the product or after the panel construction, the moisture vaporizes due to changes in the outside temperature, etc.
There is a drawback that it remains between the surface material and the core material of the panel and the panel surface swells or warps, which adversely affects the panel over time. Furthermore, the adhesive strength between the surface material and the back surface material and the core material is weak, and there is a drawback that the surface material and the back surface material are separated from the core material by a small impact.

[0004]

In order to eliminate such drawbacks, the present invention sandwiches a core material made of phenol foam between a surface material and a back surface material through a non-woven fabric having air permeability, and therefore exhibits an anchor effect. However, the non-woven fabric functions as a reinforcing material and enhances the mechanical strength of the panel as well as strengthening the adhesive strength between the surface material, the back surface material and the core material.The condensed water remaining in the phenol foam is removed. The present invention proposes a panel that can escape to the outside of the panel through a concave ventilation groove of a breathable non-woven fabric and prevent the panel from being deformed with time due to residual moisture (such as swelling or warpage of the surface) after manufacturing. .

[0005]

EXAMPLES Typical examples of the panel according to the present invention will be described below in detail with reference to the drawings. 1 and FIG. 1A, which is an enlarged cross-sectional view of a portion of FIG. 1, are explanatory views schematically showing a cross section of a typical example of the panel A, and include a front surface material 1, a back surface material 2, and a core material. 3 and the non-woven fabric 4.

That is, the surface material 1 and the back surface material 2 are thin metal plates such as iron, aluminum, copper, stainless steel, titanium, aluminum / zinc alloy plated steel plate, enamel steel plate, clad steel plate, laminated steel plate (vinyl chloride steel plate, etc.), sandwich steel plate. (Vibration-damping steel plates, etc.), etc. (including, of course, colored metal plates coated in various colors) formed into various shapes by roll molding, press molding, extrusion molding, etc.
Alternatively, an inorganic material is formed into various arbitrary shapes by extrusion molding, press molding, autoclave culturing, or the like.

The core material 3 is made of phenol foam, and is formed by mixing a stock solution of resol-type phenol and a curing agent, discharging the mixture on the back surface side of the front surface material 1 or the back surface material 2, and heating to cause reactive foaming. Is. In addition, in the core material 3, lightweight aggregates (perlite particles, glass beads, gypsum slag, talc stones, shirasu balloons, etc.) and fibrous materials (glass wool, rock wool, carbon fibers, graphite, etc.) are used as various flame retardant materials. It is possible to mix them to improve fire resistance and fire resistance.

Further, as shown in FIG. 1 (b), the core material 3 is sandwiched between the front surface material 1 and the back surface material 2 via a nonwoven fabric 4. This nonwoven fabric 4 is a surface material 1
And the core material 3 side surface of the back surface material 2 with the adhesive material 5. The material of the non-woven fabric 4 is a sheet-like material made of polyester-based, nylon-based, boron-based, carbon-based, alumina-based, silicon carbide-based, and aramid-based fibers, which has air permeability and has a mechanical strength of the panel A. Since it is improved, the bending strength and wind pressure resistance of the panel A are improved, and the pitch of attachment to the frame at the time of construction can be lengthened. When the surface material 1, the back surface material 2 and the core material 3 are integrally formed by utilizing the self-adhesiveness of phenol foam, the unevenness of the non-woven fabric 4 creates an anchor effect, and the surface material 1, the back surface material The adhesiveness between the material 2 and the core material 3 is enhanced. Further, the non-woven fabric 4 has a function of improving the flatness of the front surface material 1 and the back surface material 2.

As the adhesive 5, one type of adhesive such as cyanoacrylate, epoxy, etc., curing type, rubber type, vinyl acetate type, emulsion type, ethylene-vinyl acetate, EVA, etc. hot melt type is used. Is.

The non-woven fabric 4 is in the form of a sheet as shown in FIG. 2, and has a plurality of ventilation grooves 6 having a substantially concave cross section formed at a constant pitch. As shown in FIG. 1 (b), the ventilation groove 6 forms a ventilation path 7 together with the front surface material 1 and the back surface material 2, and a curing period after manufacturing the panel A, or after construction,
Condensed water remaining in the phenol foam of the core material 3 efficiently escapes from the ostium of the panel A to the outside through the ventilation passage 7 and is vented, so that the panel A may be deformed over time after production (on the surface). Blisters, warps, etc.) can be prevented. Further, as an accessory, the acidic component of the phenol foam of the core material 3 is released to the outside together with water to some extent, so that when the front surface material 1 and the back surface material 2 are made of steel plate or the like, rust and deterioration occur. The panel A can suppress and prevent the above.

What has been described above is the panel A according to the present invention.
This is one example of the above and can be formed as follows. That is, FIGS. 3A to 3D show other examples of the nonwoven fabric 4, and FIG. 3A shows an example in which the ventilation groove 6 is formed not only in the vertical direction but also in the horizontal direction, and FIG. 3 is an example in which two non-woven fabrics 4 are stacked and a ventilation path 7 is formed in advance, as shown in FIG.
FIG. 3C shows an example in which pipe-shaped ventilation passages 7 are connected, and FIG. 3D shows an example of a layered non-woven fabric 4.

FIGS. 4 and 5 (a) to 5 (f) are examples of the overall shape of the panel A. For example, a block-shaped panel A as shown in FIG. (F)
It is also possible to form a male-female connection type long panel A formed continuously with the sectional shape shown in FIG. In addition, FIG.
In (f), 8 is an inorganic material for improving the fire resistance and fire resistance of the panel A. Of course, the panel A in which these members and shapes are combined can be used.

[0013]

As described above, according to the building panel of the present invention, since the non-woven fabric is interposed between the surface material, the back surface material and the core material, the mechanical strength of the building panel is improved and the bending strength, The wind pressure resistance is improved, and the pitch of attachment to the skeleton during construction can be lengthened. Further, in the adhesion between the surface material, the back surface material and the core material, the unevenness of the nonwoven fabric produces an anchor effect, and the adhesion between the surface material, the back surface material and the core material can be enhanced. Nonwoven fabric improves the flatness of the front and back materials. Since a ventilation path is formed by the breathable non-woven fabric, the surface material and the back surface material, the condensation water remaining in the phenol foam of the core material is aerated during the curing period after manufacturing the building panel or after the construction. It is possible to prevent the structural panel from being deformed (swelling, warping, etc.) over time after manufacturing by efficiently letting it out from the mouth of the architectural panel through the path and ventilating it. Secondaryly, the acid content of the phenolic foam of the core material is released to the outside together with water to some extent, so when the surface material and back surface material consist of steel plate, etc., suppress and prevent the occurrence of rust and deterioration. can do. There are characteristics and effects.

[Brief description of drawings]

FIG. 1 is a cross-sectional view showing a typical example of a building panel according to the present invention.

FIG. 2 is a perspective view showing an example of a nonwoven fabric used for the panel.

FIG. 3 is a perspective view showing another embodiment of a nonwoven fabric.

FIG. 4 is a perspective view showing another embodiment of the panel.

FIG. 5 is a cross-sectional view showing another embodiment of the panel.

[Explanation of symbols]

 A Building panel 1 Surface material 2 Back material 3 Core material 4 Nonwoven fabric 6 Ventilation groove 7 Ventilation path 8 No equipment

Claims (1)

[Claims] 1. A construction panel in which a core material made of phenol foam is sandwiched between a surface material and a back surface material through a nonwoven fabric having air permeability, and the nonwoven fabric has ventilation grooves having a substantially concave cross section formed at a constant pitch. A building panel, characterized in that a ventilation path is formed by a material, a back material and a non-woven fabric.