JPH07365B2 - Disaster prevention / fireproof / fireproof composite material - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention uses an aqueous film-forming inorganic compound as a main material, and uses this as a coating or adhesive agent for various materials to prevent disasters, fires and
The present invention relates to a disaster prevention / fireproof / fireproof composite material for the purpose of improving fire resistance.

Conventionally, for disaster prevention, each part of high-rise building is severely incombustible, fireproof, and
Fireproof performance is obligatory. In order to effectively function the space, it is necessary to reduce the thickness of the partition material.
In addition, the interior of ultra-high-rise houses is obliged to use non-combustible materials, and it was not possible to use wood-based materials that are highly user-friendly and combustible. Furthermore, as the performance of automobiles and ships progresses,
Heat resistance, heat insulation and sound insulation are required. Therefore, the flexible heat-resistant and non-combustible composite material of the present invention has various wide-ranging fields of application.

(Prior Art) Conventionally, there are various JIS-certified non-combustible materials, but in many cases organic adhesives are used when forming composite materials, and in particular, surface cosmetic materials are mainly composed of organic materials.

(Problems to be solved by the invention) The conventionally known non-combustible material has low heat resistance even if a flame-retardant material is mixed therein, so that when the temperature rises to 300 ° C. or higher, ignition occurs, and smoking and calorie increase occur. It is the cause.
There is also a method in which water glass is used as an adhesive, but it does not become flexible at room temperature and cracks are generated to impair fire resistance. Also, if a large amount of flame retardant material is used, poisonous gas pollution will occur during combustion. Therefore, there is no general-purpose suitable material that can be used as a fireproof flexible adhesive material.

(Problems to be Solved by the Invention) However, the present invention has solved the above-mentioned conventional problems by using a material containing an aqueous film-forming inorganic compound as a main material.

That is, the present invention is a composite material in which a surface coating material, an impregnating material, an adhesive material, or all of them are mainly composed of an aqueous film-forming inorganic compound, wherein the aqueous film-forming inorganic compound is hydrated with a metal. Boric acid or hydrofluoric acid, which is composed of a mineral acid or a hypominous acid compound and an alkali metal, and is [AaBb] rCcDd or [AaBbCcDd] sCpDq where A ... Si, Al B ... FH, H, BH ₃ , B ₂ O ₃ C ... Na, K, Li D ... H ₂ O, OH number of moles ... a, b, c, d, p, q, r, s, and various mineral productions of natural or synthetic nature It is a disaster prevention / fireproof / fireproof composite material characterized by the addition of materials. Further, it is characterized in that an aqueous film-forming inorganic compound is applied as a main material to both surfaces of the plate-like body,
The surface material is a metal foil, and the back material is a flexible material such as paper, wool, or a blanket material made of an inorganic fibrous material.

Next, another invention is a flexible thin film material in which a natural or synthetic thin film treated with flame retardant is used as a surface material, and the surface material and the non-combustible thin film material are bonded with an adhesive mainly composed of an aqueous film-forming inorganic compound. The non-combustible material is laminated with a flame-retardant natural or synthetic thin film or flexible thin film as an adhesive mainly composed of an aqueous film-forming inorganic compound. It is characterized by.

The aqueous film-forming inorganic compound of the present invention contains no organic matter, is nonflammable, and does not generate decomposition gas even when reaching 1000 ° C. That is, as shown in FIG. 1 showing the DTG analysis result in Table 1, it is clear that the weight change at high temperature after dehydration of excess water is slight. Further, it is possible to understand the reason why cracking or peeling does not occur during heating. The tensile peel strength from the iron plate is 20
More than kg / cm ² (at heating 300 ° C.) was generated, and when it was further applied to the iron plate, rust did not occur even after 90 RH × 60 ° C. × 7 days.

From the above properties, the following characteristics occur. That is, 3.2 m / m of iron plate was coated on both sides with the ratio of 150 g / m ² on both sides and dried,
After applying the melting burner, 38
Although it took seconds, it took 3 minutes and 20 seconds for the double-sided coated product to penetrate.

Also, on the double-sided paper of 24 m / m thick gypsum board (made by Yoshino),
No matter which one is applied, propane burner (88
The backside temperature after heating for 1 hour was only 60 ° to 80 ° C. Therefore, by carrying out the present invention, the required performance such as fire resistance can be secured even if the thickness of the disaster prevention / fire protection / refractory material is reduced.

Next, 60% of mineral powder (kaolin / pozzolan) was mixed with 30 μm of stainless metal foil (made by Nichifoil) as shown in Table 1 above to form an adhesive, which was applied at a rate of 200 g / m ² . A flexible sheet was obtained by sticking 2.5 m / m paper of alumina silica and a blanket (made by Isolite) having a thickness of 12.5 m / m. No peeling was observed when this was heated in an electric furnace at 1000 ° C for 1 hour. Also, aluminum foil (100 microns) and primary fired carbon felt 10m / m thickness were laminated in the same manner as above, and even if a 1000 ° C micro burner was applied to the aluminum foil, the primary fired carbon felt did not deteriorate due to combustion. It did not penetrate through the aluminum foil even after being cut for 3 minutes. On the other hand, the aluminum foil was easily melted.

That is, the aqueous film-forming compound of the present invention is a surface coating material,
Alternatively, when used as an adhesive, even if exposed to a high-temperature burner, the inorganic coating film is not damaged, and heat conduction is blocked by dehydration of water of crystallization, and a heat-resistant coating film is formed to prevent the inflow of radiant heat. In addition, it is an inorganic compound that is unique in that it has a fire-resistant adhesive force and does not show peeling.

From these characteristics, various disaster prevention / fireproof / fireproof composite materials can be produced by using the water-based film-forming inorganic compound of the present invention or adding 1 to 150 parts of the filler.

(Operation and Effect of the Invention) The aqueous film-forming inorganic compound of the present invention is as shown in Table-1.
The five representative varieties are shown in. Natural powders such as mineral powder, kaolin, pozzolan, silica fume, bauxite, pyrophyllite, metal oxide, metal hydroxide, cements, etc., natural and synthetic fibers, natural and synthetic layered Even if a compound or the like is mixed, or a high temperature foam or other material is mixed, it is within the technical scope of the present invention as long as the function of the present invention is mainly contained. The plate-like body referred to in the present invention means, for example, JIS non-combustible material / quasi-incombustible material. Further, the metal foil becomes a flexible sheet when it has flexibility, but if it is not flexible, it becomes a plate-like body by being compounded. For example, various kinds of general-purpose metal foils of 100 μm or less such as iron SUS, Al, and Cu are mentioned.

Next, the inorganic fibers include general-purpose alumina, alumina silica, carbon, boron, silicon nitride fibers, etc., which are heat resistant and can be used as paper, wool, or blanket. As the organic surface material, it is preferable to use a material that emits no toxic gas, emits less smoke, and has less calories. Natural wood, paper, and non-woven fabric can be used in an amount of 500 μm or less, but most preferably 50 to 200 μm.

Also, use flammable materials that are impregnated with flame-retardant materials and do not cause flashover even when ignited. Sliced wood,
A paper-like material having alcoholic acid chemically bonded to the inorganic compound of the present invention, such as PVA
A flame-retardant material is mixed in and coated with a backing for reinforcement. The non-combustible thin film refers to non-combustible paper (inorganic fiber-containing paper such as alumina / silica / alumina-silica / carbon / glass / boron / silicon nitride), woven or non-woven fabric of inorganic fibers.

The meanings of disaster prevention, fire prevention, fire resistance, and noncombustibility are used as the same meanings as defined in the Building Standards Act and the Fire Service Act.

(Example-1) 10-m / m thick of Table-1 was applied to an iron plate and melted,
No burr that would occur in the case of no coating was generated. Table 1 was coated on stainless steel at a thickness of 1 m / m and laser-cut with a laser manufactured by Mitsubishi Electric Corporation, but it showed fire resistance and no burrs generated in the case of no coating.

(Example-2) # 28 galvanized iron was adhered to a 24 m / m gypsum board with hot melt, and this was used as standard A. Similarly, Table 1 was coated on both sides of galvanized iron and gypsum board, and this was adhered. Table 2 shows the back surface temperature of Control Product B when the steel plate surface was heated with a propane burner (850 to 900 ° C.).

The gypsum surface paper of A disappeared, but B did not break even when carbonized, and the rise in backside temperature was small and disaster prevention, fire prevention, and fire resistance were increased.

(Example-3) Although coating of Table-1 on both sides of a 3.2 m / m iron plate delays the melt penetration time by the burner, single-sided coating penetrates in a time close to unpainted, and the effect of fire resistance of this invention is It became clear.

(Example-4) A glass cloth (120 g / m ² manufactured by Nitto Boseki) was impregnated in a mixed solution of 50 parts of a 10% aqueous solution of Poval and 50 parts of a 10% sulfaminganidin solution and dried at 80 ° C. Impregnated in 120
It was dried at ° C. On the other hand, the untreated glass cloth melts easily at 650 ° C, but the treated product did not penetrate through the melt even with a 1000 ° C burner, and disaster prevention and fireproof properties were recognized. But normally it was flexible.

(Example-5) When 80 g / m ^{2 of} paper and 60 g / m ^{2 of} polyester non-woven fabric were treated in the same manner as in the previous example in Table-1, the flame-retardant test of Meckel burner was performed. However, flame resistance was recognized.

(Example-6) 50 micron stainless steel (made by Takeuchi metal foil powder) and alkina silica blanket (8P) 25m / m are shown in Table-1 Kaolin 20 parts, pozzolan 35 parts, diatomaceous earth 3 parts, hill. It was glued with 10 parts of stone mixed and dried for 1 day. 10m /
When a spot resistance was applied to the m steel plate with the above-mentioned adhesive material and a fire resistance test was performed according to the standard heating curve of JIS-A1304, the steel plate temperature was 3 hours.
It was only at 320 °, and it was about 36
Similar results were obtained with a thickness of%. On the other hand, the blanket alone showed outstanding fire resistance performance compared to the requirement of 50 m / m thickness.

When two blankets (8P) of 20 m / m were coated with the adhesive and further compounded with the 50 μ stainless steel, the iron plate temperature was only 200 ° C. in the fire resistance test. Even if the proportion of the filler was set to 0 to 100% and the addition amount was changed to 1 to 200 parts, the fire resistant adhesive force was produced.

Example 7 Cedar paper sliced into 130 μm was impregnated with sulfamine or guanidine phosphate 10% solution, dried, and flame-retarded. Flame retardancy occurred with 1-20% liquid. This was adhered to alumina silica paper as shown in Table-1. This is called wood paper, and 220m / m x 220m / m was tested by the Ministry of Construction Notification No. 1828, but the CA (smoke emission) was 11 to 13, there was no afterflame / crack, no increase in calories, and no flammability. Equivalent to wood.

(Example-8) Among the noncombustible materials, the wood paper of the above-mentioned example was adhered to 10 g / m of gypsum board which emits a lot of smoke as shown in Table-1. This was subjected to the surface test and base material test of Ministry of Construction Notification No. 1231.

The surface test was Ca ... 23, Dd ... 0, afterflame 0, and the base material test was that the temperature difference was only 50 °, which was within the range of the standard for noncombustible materials.

According to the method of the present invention, cedar and Japanese cypress can be used for the interior of a super high-rise house.

(Example-9) The test of Example-7.8 was carried out by replacing the cedar of Example-7 with a 70 g non-woven fabric having a printed pattern (manufactured by Toyobo), and all were within the standard values.

[Brief description of drawings]

FIG. 1 is a differential heat distribution graph shown in Table-1. FIG. 2 is a rough graph of the weight loss and endothermic pattern of FIG.

Claims (5)

[Claims] 1. A composite material in which a surface coating material, an impregnating material, or an adhesive material, or all of them are mainly composed of an aqueous film-forming inorganic compound, wherein the aqueous film-forming inorganic compound is hydrated with a metal. Boric acid or hydrofluoric acid, which is composed of a mineral acid or sub-mineral acid compound and an alkali metal, and is [AaBb] rCcDd or [AaBbCcDd] sCpDq where A ... Si, Al B ... FH, H, BH ₃ , B ₂ O ₃ C ... Na, K, Li D ... H ₂ O, OH number of moles ... a, b, c, d, p, q, r, s, and various mineral productions of natural or synthetic nature A disaster prevention / fireproof / fireproof composite material characterized by the addition of materials. 2. The disaster prevention / fireproof / fireproof composite material according to claim 1, wherein the aqueous film-forming inorganic compound is applied as a main material to both surfaces of the plate-like body. 3. The disaster prevention / fireproof / fireproof composite according to claim 1, wherein the surface material is a metal foil and the back material is a flexible material such as paper, wool or blanket material made of an inorganic fibrous material. Material. 4. A flexible thin film material comprising a flame-retarded natural or synthetic thin film as a surface material, and the surface material and an incombustible thin film bonded together with an adhesive mainly composed of an aqueous film-forming inorganic compound. The disaster prevention / fireproof / fireproof composite material according to claim 1, wherein 5. A flame-retardant natural or synthetic thin film or a flexible thin film is bonded to another non-combustible material with an adhesive mainly composed of an aqueous film-forming inorganic compound. Disaster prevention / fireproof / fireproof composite material according to any one of 3, 4 above.