CN1260324C - Organic fireproofing plugging - Google Patents

Abstract

The present invention discloses an organic fireproof plugging material which relates to a fireproof material, particularly to a fireproof plugging material used for plugging penetrative openings and building gaps. The organic fireproof plugging material aims to solve the problems of bad plasticity and bad pliability of the existing plugging materials. The organic fireproof plugging material is prepared by mixing the following raw materials according to the percentage by weight: 33 to 38 of diethyl silicon oil, 32 to 37 of light calcium carbonate or/and large calcium carbonate, 1 to 3 of expanded perlite or /and expanded vermiculite, 17 to 23 of filler and 3 to 6 of flame retardant agent, wherein the flame retardant agent is at least one kind of aluminium hydroxide, hydrated zinc borate and magnesium hydroxide; the filler is at least one kind of natural diatomite, talc powder and bentone. The organic fireproof plugging material is suitable for the fireproof plugging of holes and gaps of electric wires, cables, pipelines, and the like of power plants, transformer stations, industrial and mining factory buildings, high buildings, and the like for preventing the spread of flame and smog, and the plugging material has the advantages of good fireproof performance and long-term plasticity and pliability.

Description

Organic fireproof blocking material

technical field

The invention relates to a refractory material, especially a fireproof blocking material for sealing penetrating openings and building gaps.

Background technique

According to GBJ 16-87 "Code for Fire Protection Design of Buildings" and GB 50045-95 "Code for Fire Protection Design of High-Rise Civil Buildings", the penetrations (such as cables, air ducts, etc.) Openings, etc., must be fireproofed to prevent the spread of fire from one partition to another and the spread of toxic fumes in the event of a fire. Organic fireproof blocking material is the most commonly used fireproof sealing material.

However, the currently used organic fireproofing materials are often cured due to the aging of the adhesive and the ambient temperature during use. After curing, some volume shrinks to form gaps, resulting in imprecise sealing, leaving a safety hazard; moreover, it is relatively hard after curing, which is not convenient for cable maintenance and replacement. Some blocking materials have poor fire resistance, and are easy to burn and crack when a fire occurs, but cannot effectively prevent the flame and smoke from spreading.

Contents of the invention

In view of the above, the purpose of the present invention is to solve the defect that the organic fireproof blockage is unfavorable for construction and maintenance during use, and to provide an organic fireproof blockage with high fire resistance, good plasticity and flexibility.

The invention adopts diethyl silicone oil, which can make the blocking material have long-term plasticity and flexibility; and adopts non-combustible inorganic filler, filling/connecting gap material, flame retardant, and fireproof material in a reasonable ratio to achieve its purpose.

The organic fireproof blockage of the present invention is composed of the following raw materials mixed in parts by weight:

Diethyl silicone oil 33~38, light calcium carbonate or heavy calcium carbonate 32~37, expanded perlite or expanded vermiculite 1~3, filler 17~23, flame retardant 3~6, the above flame retardant is hydrogen At least one of aluminum oxide, zinc borate hydrate, and magnesium hydroxide.

The total dosage of the above flame retardants is 3-6 parts by weight. When two or three of them are selected, the dosage of each raw material can be adjusted arbitrarily within the range of the total dosage.

The above-mentioned filler is at least one of natural diatomite, talcum powder and bentonite. The total amount of fillers is 17-23 parts by weight. When two or three of them are selected, the amount of each raw material can be adjusted arbitrarily within the range of the total amount.

The diethyl silicone oil in the present invention has high and low temperature resistance, excellent aging resistance and chemical stability, and can make the blocking material have long-term plasticity and flexibility. Light calcium carbonate and heavy calcium carbonate are gap filling/connecting materials. The filler is at least one of natural diatomite, talcum powder and bentonite, all of which are non-toxic, non-combustible materials capable of high temperature resistance. Among them, the main function of natural diatomite is to improve the flexibility and heat resistance of the blockage; the addition of talcum powder can make the blockage have the ability to adapt to deformation such as expansion and contraction; bentonite can improve the plasticity of the blockage. Expanded perlite and expanded vermiculite are fireproof materials, both of which are porous materials with light weight and low thermal conductivity, which can improve the fire resistance of the blockage. The flame retardant is at least one of aluminum hydroxide, zinc borate hydrate and magnesium hydroxide. All three are high-efficiency, cheap and non-toxic inorganic flame retardants, which can improve the fire resistance of the blockage, and can effectively inhibit the generation of smoke when the blockage is exposed to fire.

The present invention is inspected by the National Fireproof Building Material Quality Supervision and Inspection Center, and the test results are shown in Table 1:

Table 1 Performance index of the organic fireproof blocking material of the present invention serial number Test items technical indicators results of testing in conclusion 1 Fire resistance (min) Level 1: ≥180 Level 2: ≥120 Level 3: ≥60 194～241 Qualified 2 Exterior Plastic solid, with some flexibility meet the requirements qualified 3 Density(kg/m ³ ) ≤2.0×10 ³ 1.6×10 ³ qualified 4 Water resistance (days) ≥3, no swelling meet the requirements qualified 5 Oil resistance (days) ≥3, no swelling meet the requirements qualified 6 Corrosive (days) ≥7, no rust and corrosion meet the requirements qualified

As mentioned above, compared with the existing organic fireproof blockage, the organic fireproof blockage of the present invention has remarkable fireproof and heat insulation effects, excellent physical and chemical properties, good weather resistance, and excellent fire resistance. The blockage is a kind of flexible body with excellent sealing performance, which can adapt to the gaps formed by temperature difference and mechanical deformation in actual use; it has long-term plasticity and flexibility, and is easy to install, replace, and repair. When a fire breaks out, under the effect of high temperature, the components in the putty will act synergistically to make the volume of the putty slightly expand to form a strong fire-retardant and heat-insulating layer, which can tightly seal various openings and gaps and effectively prevent fires. Flame spread and smoke spread. In addition, the organic fireproof blocking material of the present invention has rich and easy-to-obtain raw material sources, simple production process, and no corrosive effect on pipes, wires and cables, etc.

The invention is suitable for fireproofing and sealing holes and gaps of wire cables and pipes in power plants, substations, industrial and mining workshops, high-rise buildings, etc., to prevent flames and smoke from spreading.

Below, the present invention will be further described with examples.

Detailed ways

Example

For the organic fireproof blockage of the present invention, according to the dosage in Table 2, weigh each raw material component by parts by weight, knead evenly to form a plastic solid with certain flexibility, then weigh and pack.

Raw materials and proportioning (parts by weight), refractory performance of table 2 embodiment Example 1 2 3 4 5 6 main ingredient diethyl silicone oil 33 36 34 35 38 37 Filler/Gap Material light calcium carbonate 32 37 34 17 Ground calcium carbonate 36 33 18 filler natural diatomaceous earth 20 17 10 16 11 14 talcum powder 4 7 4 Bentonite 3 11 4 Fireproof Materials expanded perlite 1.5 2 2 1 3 1 Expanded Vermiculite 0.5 1 flame retardant Aluminum hydroxide 6 5 2 Zinc borate hydrate 3 4.5 magnesium hydroxide 3.5 2 Fire resistance (min) 241 213 202 225 198 194

Claims (8)

1, a kind of organic fire prevention calking, it is characterized in that having the raw material of following amount by weight to mix formation: diethyl silicone oil 33～38, light calcium carbonate is or/and water-ground limestone 32～37, pearlstone is or/and expanded vermiculite 1～3, filler 17～23, fire retardant 3～6, above-mentioned fire retardant are at least a in aluminium hydroxide, hydration zinc borate and the magnesium hydroxide.

2, organic fire prevention calking according to claim 1 is characterized in that said filler is at least a in natural diatomaceous earth, talcum powder and the wilkinite.

3, organic fire prevention calking according to claim 2 is characterized in that having the following raw material of amount by weight: diethyl silicone oil 33, light calcium carbonate 32, natural diatomaceous earth 20, pearlstone 1.5, aluminium hydroxide 6.

4, organic fire prevention calking according to claim 2 is characterized in that being made of the raw material mixing of following metering by weight: diethyl silicone oil 36, light calcium carbonate 37, natural diatomaceous earth 17, talcum powder 4, pearlstone 2, aluminium hydroxide 5.

5, organic fire prevention calking according to claim 2 is characterized in that having the following raw material of amount by weight: diethyl silicone oil 34, light calcium carbonate 34, natural diatomaceous earth 10, talcum powder 7, pearlstone 2, expanded vermiculite 0.5, magnesium hydroxide 3.5.

6, organic fire prevention calking according to claim 2 is characterized in that having the following raw material of amount by weight: diethyl silicone oil 35, water-ground limestone 36, natural diatomaceous earth 16, talcum powder 4, wilkinite 3, pearlstone 1, expanded vermiculite 1, hydration zinc borate 3.

7, organic fire prevention calking according to claim 2 is characterized in that having the following raw material of amount by weight: diethyl silicone oil 38, water-ground limestone 33, natural diatomaceous earth 11, wilkinite 11, pearlstone 3, hydration zinc borate 4.5.

8, organic fire prevention calking according to claim 2 is characterized in that having the following raw material of amount by weight: diethyl silicone oil 37, water-ground limestone 17, light calcium carbonate 18, natural diatomaceous earth 14, wilkinite 4, pearlstone 1, aluminium hydroxide 2, magnesium hydroxide 2.