JPH02252Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Technical Field of the Invention] The present invention relates to a fireproofing, fireproofing, and heat insulating panel used for wall materials of buildings, etc.

[Technical background of the invention and its problems]

Conventionally, nonflammable synthetic resin foams or noncombustible inorganic fibrous materials such as glass fibers and rock wool have been used as heat insulating materials for the outer walls of houses and the like.

However, in the event of a fire in an adjacent house, synthetic resin foam insulation materials will burn, further aggravating the fire, and although inorganic fiber insulation materials are nonflammable, the temperature on the back side of the component may reach several hundred degrees. As a result of softening, shrinking, and shape changes (because it exceeds 260°C, which is said to be the ignition temperature of wood), it has no fire retardant properties or fire resistance. Therefore, for insulating outer walls that require fireproofing and fire resistance (for example, in densely populated houses), it is necessary to construct the outer wall surface material using a material that has fireproofing properties.

[Purpose of invention]

In view of the above-mentioned problems, the present invention uses a relatively hard noncombustible plate interposed between the front plate and the back plate, which is made by bonding a noncombustible material in which an inorganic material is dispersed in a synthetic resin binder to an inorganic fiberboard. It is intended to maintain its shape with a thick front and back plate, and to provide fire protection and fire resistance with a noncombustible plate.

[Summary of the idea]

The present invention consists of a top plate, a back plate, and a noncombustible plate interposed between the top plate and the back plate, and the noncombustible plate is composed of at least two kinds of zirconium oxide, silicon oxide, and titanium oxide, and carbon black. It is made by bonding a non-combustible material made by dispersing an inorganic material in a synthetic resin binder liquid to an inorganic fiberboard.The front and back plates provide strength, and the non-combustible plate provides fire protection, fire resistance, and heat insulation. be.

[Example of idea]

Embodiments of the present invention will be described with reference to the drawings.

Reference numeral 1 denotes a surface plate, which is a hard plate with a smooth surface or an uneven pattern, such as an asbestos cement board, a gypsum board, a calcium silicate board, a cement mortar board, a wood wool cement board, or a thin metal board.

Reference numeral 2 denotes a back plate, which is a flexible plate made of a metal thin plate, metal foil, synthetic resin film, inorganic paper mixed with asbestos or glass fiber, or an appropriate combination of these.

A noncombustible plate 3 having a thickness of 5 mm to 50 mm is interposed between the front plate 1 and the back plate 2 and is integrally bonded to the front plate 1 and the back plate 2 with an adhesive. The noncombustible board 3 is an inorganic fiber board impregnated or coated with a noncombustible material and bonded together. Inorganic fiberboards include glass fiberboards, rock wool fiberboards, and composite inorganic fiberboards made by combining these inorganic fibers. Glass fiberboard usually has a so-called E-glass composition to C
Regarding the glass composition, it is sheet-like, felt-like, or mat-like, which is made of long fibers with a fiber diameter of about 5 to 15 μm, cut fibers made by cutting long fibers, or so-called short fibers made into fibers using centrifugal force, etc. , has a board-like shape, and the bond of fibers is
This is an inorganic fiberboard made chemically using a small amount of resin binder or mechanically made by methods such as needling.
Rotsk wool fiberboard is made of basalt, peridotite,
It is obtained by melting a raw material composition containing iron ore slag, silica, dolomite, lime, etc., and making it into fibers using centrifugal force such as a multi-rotor system, and the shape and fiber binding method are similar to the above-mentioned glass fibers. It is an inorganic fiberboard made in the same way as a board. Furthermore, inorganic fiberboards made of composite fibers of glass fibers and rock wool fibers with the same shape and bonding method as above, and these glass fiber-based, rock wool-based, and glass fiber/rock wool composite inorganic fiberboards have a combustible property. It also includes inorganic fiberboards partially blended with organic materials such as pulp, as well as inorganic fillers, flame retardants, etc., to the extent that they are not included. In addition, these fiberboards have a bulk specific gravity of 0.5 or less, preferably 0.3 or less, and a small amount of a silane coupling agent or a silane-based water repellent is added to the fiberboard from the viewpoint of its insulation performance. It is effective to use a waterproof material.

Next, titanium oxide, zirconium oxide, and silicon oxide as inorganic materials constituting the noncombustible material coated or impregnated on the above-mentioned inorganic fiberboard are used as titanium compounds, zirconium compounds, and silicon compounds, respectively. It also includes those produced by drying at a temperature of 300°C or by thermal decomposition. In the case of titanium compounds, oxides such as titanium oxide, titanic acid, titanium sulfate, titanium chloride, titanium oxyacetylacetonate, titanium alkoxide, acids, inorganic salts, oxides, organic titanium compounds, and zirconium Compounds include oxides, acids, such as zirconium oxide, zirconic acid, zirconium sulfate, zirconyl sulfate, zirconyl acetate, zirconyl oxychloride, zirconyl oxysulfate, zirconyl ammonium carbonate, zirconyl chloride, zirconium acetylacetonate, zirconium alkoxide, Inorganic salts, chlorides, organic zirconium compounds, silicon compounds such as oxides, acids, inorganic salts such as silicon oxide, colloidal silicic anhydride, silicon tetrachloride, organosilicon ammonium,
Examples include chlorides and organic silicon compounds.

In addition to the above, inorganic materials such as clay, mica, talc,
Inorganic fillers such as glass powder, magnesium hydroxide, aluminum hydroxide rock wool fine fibers, and organic and inorganic flame retardants such as ammonium polyphosphate, ammonium bromide, guanidine phosphate, silica phosphate, and antimony trioxide. There is no problem in adding or blending them within a range that does not impair fire resistance and chemical resistance.

Furthermore, carbon black as an inorganic material is a black fine powder and is usually used as furnace black, acetylene black, thermal black manufactured by the furnace method, channel black, disk black manufactured by the impact method, German naphthalene black, etc. Commercially available products such as black can be used, and carbon black, which is made by treating inorganic fibers with carbon in a high-temperature reducing atmosphere, can be used. can. Examples of this type include carbon black-fixed potassium titanate fibers, and carbonized fine fibers such as carbon fibers can also be used. Furthermore, part or all of the carbon black may be replaced with a flame retardant that promotes carbonization of pulp, resin, etc. contained in the inorganic fiberboard by heating during the manufacturing process.

Synthetic resin binder liquids include vinyl acetate resin, ethylene, vinyl acetate resin, acrylic resin,
Synthetic rubber such as SBR and NBR, emulsion type such as polyvinyl alcohol, starch, polyamide resin, polyimide resin, aqueous solution type, solution type dissolved in organic soot, thermoplastic resin, melamine resin, phenolic resin. Thermosetting resins such as emulsion type, aqueous solution type, and solution type dissolved in organic soot, such as epoxy resin, polyester resin, and furan resin, can be used as a binder alone or in the form of a mixture. Due to the risk of fire, it is preferable to use a water-soluble type or emulsion type binder.

There are no particular limitations on the blending ratio of the components of the above-mentioned noncombustible material that imparts fire resistance and chemical resistance, but from the viewpoint of productivity and raw material costs, the preferred blending ratio is as follows: Silicon oxide + zirconium oxide + titanium oxide 35-70wt%, carbon black 5-10wt%, resin binder liquid 10
~50wt%, flame retardant/others in the range of 0~10wt%. A composite is formed by impregnating or coating an inorganic fiberboard with a noncombustible material made of a composition having the above-mentioned preferred blending ratio, but the composite ratio that imparts fire resistance and chemical resistance is not particularly limited. In terms of solid content, it is preferable that the amount of the noncombustible material imparting fire resistance and chemical resistance be 100 parts by weight or less per 100 parts by weight of the inorganic fiberboard. The inorganic fiberboard obtained by processing in this way is usually dried at 60 to 110°C, depending on the resin binder, and then, in the case of a resin binder that requires curing, the temperature is 150 to 200°C.
The composite panels are cured under pressure or no pressure, and if necessary, are heat-treated for a short period of time at a temperature of 200 to 600℃ to produce a composite panel that is non-combustible, fire-resistant, and chemical-resistant. can do.

[Effect of idea]

According to the present invention, it is composed of a front plate, a back plate, and a noncombustible plate interposed between the front plate and the back plate, and the noncombustible plate is made of at least two types of zirconium oxide, silicon oxide, and titanium oxide. The incombustible material made by dispersing an inorganic material consisting of carbon black and carbon black in a synthetic resin binder liquid is bonded to an inorganic fiberboard. It is held between the face plate and back plate to maintain its shape, maintains its strength as a building wall material, and improves workability. In addition, the inorganic material that makes up the noncombustible board is made by bonding carbon black and the fibers of the inorganic fiberboard by heat of fire, and then titanium oxide, zirconium oxide, and silicon oxide react with carbon to form these carbides on the surface of the noncombustible board. is formed, and the formation of carbides increases as the temperature increases. As a result, the surface of the noncombustible board is composited with carbide having a high melting point and high chemical resistance, thereby imparting fire protection, fire resistance, and heat insulation properties.

Next, the fire protection and fire resistance tests of the present invention and their results will be explained.

Test example 1 Noncombustible materials; silicon oxide 54.5wt%, zirconium oxide 15wt%, carbon black 10wt%,
Sodium alginate 0.5wt%, phenolic resin 20wt% (solid content wt%) Test method: Glass wool board (density 80Kg/
m ³ , thickness 25 mm), the above-mentioned noncombustible material was added to the glass board at a solid content of 60 parts by weight per 100 parts by weight of the glass board.
Part by weight, 0.27 on the surface treated by impregnation method
A prototype panel was made by sandwiching a mm color steel plate with an aluminum foil laminated craft sheet on the back. this panel
In accordance with JISA 1301, we performed second-class fire protection heating (maximum temperature 850°C), and measured the temperature on the back of the panel, which was 241°C, passing the second-grade fire protection rating.

Test Example 2 The noncombustible material of Test Example 1 was applied to the surface of a glass wool board (80Kg/m ³ , thickness 25mm) with a solid content of 800%.
g/m ² was coated, and sandwiched between a 5 mm calcium silicate plate on the front side and an aluminum craft sheet on the back side, a prototype panel was manufactured. This panel is heated to fireproof grade 2 according to JISA1301, and the temperature rise on the back of the panel is
Passed fire protection grade 2 at 226℃.

Test Example 3 The noncombustible material of Test Example 1 was applied to the surface of a rock wool board (80Kg/m ³ , thickness 25mm) at a solid content of 900%.
g/m ² was coated, and a 0.27 mm colored steel plate was sandwiched with an aluminum craft sheet on the back side to make a prototype panel. This panel complies with JISA1304, fire resistance 1
As a result of heating for hours (maximum temperature 925°C) and measuring the temperature on the back of the panel, it passed the 1-hour fire resistance test at 246°C.

[Brief explanation of drawings]

The figure is a longitudinal sectional front view of a panel showing an embodiment of the present invention. 1...Front board, 2...Back board, 3...Noncombustible board.

Claims (1)

[Scope of utility model registration request] It consists of a front plate, a back plate, and a noncombustible plate interposed between the front plate and the back plate, and this noncombustible plate is
It is characterized by being made by bonding to an inorganic fiberboard a noncombustible material in which an inorganic material consisting of at least two of zirconium oxide, silicon oxide, and titanium oxide and carbon black is dispersed in a synthetic resin binder liquid. Fire protection, fireproofing and insulation panels.