JP3664281B2 - Fireproof panel - Google Patents

Description

[0001]
[Industrial application fields]
The present invention can be used as an inner wall material, an outer wall material, a roof material, a ceiling material, a floor material, a partition material, a fire door, or the like of a building or a structure, and has no deformation such as swelling and warping after production, and is also fireproof. The present invention relates to a fireproof panel having excellent fire resistance and mechanical strength.
[0002]
[Prior art]
In general, a number of fireproof panels in which a core material made of a phenol resin foam (phenol foam) is sandwiched between a thin plate surface material and a back surface material have been invented and devised on the market.
[0003]
[Problems to be solved by the invention]
However, in the fireproof panel using phenol foam as the core material as described above, (1) Generally, the self-adhesion property of phenol foam is weak, the adhesion between the surface material, the back surface material and the core material is inferior, and peeling occurs. It was easy to occur. {Circle around (2)} Also, the mechanical strength of the refractory panel itself is inferior, and the surface of the refractory panel may be uneven or warped due to changes over time of the core material. (3) Furthermore, a reaction gas is generated during the formation of the core material and remains in the core material, or the condensed water during the reaction is maintained in the phenol foam in the order of several tens of percent of the weight. Or, after the construction of the fireproof panel, the moisture is vaporized due to changes in the outside air temperature, etc., and there is no escape route, so it remains between the surface material or back surface material of the fireproof panel and the core material. In some cases, the back surface of the refractory panel is adversely affected, such as gas bulging or warping on the back surface.
[0004]
[Means for Solving the Problems]
In the present invention, in order to eliminate such drawbacks, an inorganic board is formed on the back surface of the surface material via an adhesive, a plastic foam is sandwiched between the inorganic board and the back surface material, and male and female connection portions are provided at both ends. In the formed long fireproof panel, a plurality of spaces are formed on the back surface of the inorganic board so as to communicate from the mouth to the mouth by forming irregularities, and a breathable anchor is provided between the inorganic board and the plastic foam. By integrally forming the members, the mechanical strength of the fireproof panel itself is improved and the adhesive strength with the core material is improved, and the reaction gas and water vapor in the core material are released from the space of the inorganic board to the outside of the fireproof panel. In addition, the present invention proposes a refractory panel that does not adversely affect the refractory panel after manufacturing, such as warping and swelling.
[0005]
【Example】
Hereinafter, an embodiment of a fireproof panel according to the present invention will be described in detail with reference to the drawings. That is, the fireproof panel A has a core 3 between the surface material 1 and the back material 2 as shown in FIGS. 1 and 2 (a-a partial enlarged cross-sectional view of FIG. 1), FIG. 3, FIG. A synthetic resin in which an inorganic board 5 is formed on the back surface of the surface material 1 via an adhesive 4, and a phenol resin having fire resistance, for example, as a main raw material is used for the inorganic board 5 and the back material 2. A fireproof panel A sandwiched with foamed plastic foam 15, and a breathable anchor member via an adhesive 8 on the back side (surface on the core material 3 side) of the inorganic board 5 in which a space 7 is formed by at least irregularities 6. 9 is formed.
[0006]
As an example of the overall shape of the refractory panel A, as shown in FIG. 1, a front surface material 1 made of a long metal thin plate, a back surface material 2 and a male connector 10 formed at one end in the width direction, and at the other end It is formed from the formed female connecting part 11 and the decorative surface 12. In addition, the fireproof panel A is a fireproof panel A in which an inorganic packing material 13 and a waterproof packing material 14 are interposed in a connecting portion generated by the connection of the fireproof panels A, and fire resistance, fire resistance, and waterproof properties are further improved. In FIG. 3, α is a frame, β is a fixture, B is a joint cover, C is a lining plate, D is a packing material such as EPDM, E is a waterproof and fireproof caulking material, and F is rock wool. Refractory material, such as G, is a refractory board formed with a refractory material F. In addition, a gap for discharging the gas or the like to the outside is formed in the joint portion shown in FIG. 3 and the upper and lower ends of the joint portion. Of course, it is discharged to the outside through the gaps between the respective parts.
[0007]
The surface material 1 and the back material 2 are thin metal plates such as iron, aluminum, copper, stainless steel, titanium, aluminum / zinc alloy plated steel plate, galvalume steel plate, enamel steel plate, clad steel plate, laminated steel plate (PVC steel plate, etc.), sandwich steel plate (control) Corrugated steel sheets, etc.), vinyl chloride resin, polycarbonate resin, etc. (including color plates coated with various colors, of course) formed into various shapes by roll molding, press molding, extrusion molding, etc., or inorganic materials Formed into various arbitrary shapes by extrusion molding, press molding, autoclave ripening, etc., and further, as the back material 2, aluminum vapor-deposited paper, asbestos paper, kraft paper, asphalt felt, metal foil (Al, Fe, Pb, Cu), synthetic resin sheet, rubber sheet, cloth sheet, gypsum paper, aluminum hydroxide paper, glass One such Wei nonwoven, or those of two or more laminated or waterproof treatment, flame retardant treated sheet, or is made of these composite materials.
[0008]
The core material 3 includes an adhesive 4, an inorganic board 5, an adhesive 8, and a plastic foam 15. The plastic foam 15 mainly includes a heat insulating material, a refractory material, an adhesive, a reinforcing material, a buffer material, a sound absorbing material, a bulk material. It functions as an upper material, a weight reduction material, and the like.
[0009]
More specifically, the plastic foam 15 is made of a synthetic resin foam such as phenol foam, polyurethane foam, polyisocyanurate foam, vinyl chloride foam, polyethylene foam, polystyrene foam, urea foam, and the like. Mix the stock solution (phenol resin) with a composition such as flame retardant, foaming agent, thermally foamed carbonized layer forming agent, neutralizing agent, curing agent, plasticizer, etc. on the back side of the surface material 1 or the back material 2 It is formed by discharging and heating to react, foam and cure. Various flame retardants include lightweight aggregates (perlite grains, glass beads, gypsum slag, talc stone, shirasu balloon, aluminum hydroxide, etc.), fibrous materials (glass wool, rock wool, carbon fiber, graphite, etc.), etc. is there.
[0010]
The fire-resistant plastic foam 15 is a resol type phenol foam mixed with a foaming agent, aluminum hydroxide (Al (OH) ₃ ), ammonium polyphosphate, graphite, a curing agent, etc., foamed and cured, and finished. It is formed at a density of about 50 to 300 kg / m ³ .
[0011]
Examples of the adhesive 4 and the adhesive 8 include elastomer type epoxy resins, isocyanates such as emulsion types such as methylene diisocyanate (abbreviation MDI), hot melt types, and modified isocyanates such as urethane modified, burette modified isocyanate, and isocyanate. It uses one kind of nurate-modified isocyanate, for example, epoxy resin, phenol resin, urethane resin, vinyl resin, acrylic resin, polyester resin, EVA resin and other synthetic resin adhesives, rubber adhesives, oil-based adhesives, etc. It consists of an adhesive.
[0012]
The inorganic board 5 is used for reinforcing the fire resistance of the connecting portion, improving the mechanical strength, preventing the peeling of the surface material 1, and the like, and passes the fire resistance structure 1 hour test of the fire resistance structure test of JIS-A-1304. For example, calcium silicate board, calcium carbonate board, gypsum board, pearlite cement board, rock wool board, slate board, ALC board, PC board, other inorganic lightweight body, inorganic lightweight foam, or these One or more kinds of composite plates, or an ultra-high density resin (such as high-density phenol foam) is integrally interposed on the back surface of the surface material 1 of the fireproof panel A via an adhesive 4. Further, the inorganic board 5 is provided with irregularities 6 for forming the spaces 7. The spaces 7 formed by the irregularities 6 are connected to the joints shown in FIG. Excess gas components (chlorine, carbon dioxide, methylene chloride, formaldehyde, water vapor, hydrogen, etc.) or gases such as condensed water at the time of reaction are discharged to the outside, and the surface material 1 and back material 2 of the fireproof panel A after production Is a fire resistant panel A which is free from deformation such as swelling and warping due to internal gas, and which has excellent strength and fire resistance.
[0013]
The breathable anchor member 9 is as shown in FIGS. 6A to 6C, and is bonded to the back surface of the inorganic board 5 via the adhesive 8 so that the adhesive strength between the inorganic board 5 and the core material 3 is high. It functions as an improvement and space 7 forming member. The breathable anchor member 9 communicates with the space 7 of the inorganic board 5 and the joint shown in FIG. 3, and surplus gas components (chlorine, carbon dioxide, methylene chloride, formaldehyde, water vapor, hydrogen, Etc.), or gases such as condensed water during the reaction are released to the outside through these spaces, and the surface and back of the fire-resistant panel A after production do not show deformation such as swelling or warping due to internal gas, and the strength It becomes the fireproof panel A excellent in fireproof performance.
[0014]
More specifically, the breathable anchor member 9 uses a material that allows gas or the like to pass but does not allow liquid to pass through. For example, a long fiber, a short fiber, or the like is formed into a sheet shape. It is formed at a desired density in a flocked shape, a lump shape, a curled shape, etc., and when flocking, fibers having a length of 10 to 200 μm and a thickness of about 5 to 200 μm are used. 6A to 6C, FIG. 6A is a sheet shape, FIG. 6B is a breathable anchor member 9 in which fibers (pile) are planted, and FIG. 6C is a breathability formed of a nonwoven fabric. Anchor member 9.
[0015]
By forming the breathable anchor member 9 with fibers in this way, the breathable anchor member 9 reinforces the adhesive strength between the surface material 1 and the core material 3, and particularly the core material 3 is brittle like phenol foam and has an adhesive strength. When using a weak one, the peeling between the inorganic board 5, the back material 2 and the core material 3 is prevented. Of course, what has been flocked on both sides can also be used as the breathable anchor member 9.
[0016]
Further, as the breathable anchor member 9 using a nonwoven fabric, polyester fiber, nylon fiber, vinylon fiber, boron fiber, carbon fiber, alumina fiber, silicon carbide fiber, aramid fiber, glass fiber, rock wool fiber, etc. A sheet-like material having air permeability.
[0017]
The inorganic packing material 13 is made of, for example, rock wool felt, ceramic wool, or the like, and prevents the formation of a gap between the connecting portions during the 1 hour test of the fire resistance structure of the fire resistance structure test of JIS-A-1304. It is useful mainly as a function of refractory materials and airtight materials.
[0018]
The waterproof packing material 14 is generally commercially available as, for example, a standard and elastic packing material such as polyvinyl chloride, chloroprene, chlorosulfonated polyethylene, ethylene propylene, asphalt impregnated polyurethane, EPM, EPDM, etc. It is useful mainly as a function of a waterproof material, an airtight material and the like.
[0019]
Furthermore, in order to confirm the fire resistance of the fireproof panel A having this configuration, when the fireproof structure 1 hour test of the fireproof structure test of JIS-A-1304 is performed on the fireproof panel A as shown in FIG. Got. In this case, the specification is that the surface material 1 and the back material 2 are 0.5 mm thick colored steel plates, the plastic foam 15 is phenol foam (density 160 kg / m ³ ), the inorganic board 5 is calcium silicate board, and a breathable anchor The member 9 was rock wool fiber, and the total thickness of the fireproof panel A was 50 mm. In addition, an inorganic packing material 13 made of rock wool felt is continuously formed in the connecting portion.
[0020]
[Other examples]
What has been described above is one embodiment of the fire-resistant panel according to the present invention, and a fire-resistant panel A as shown in FIGS. That is, FIGS. 7A to 7F and FIGS. 8A to 8E are partially enlarged views showing other examples of the inorganic board 5.
[0021]
FIGS. 9A to 9E and FIGS. 10A to 10E show other examples of the cross section of the fireproof panel A. FIG.
[0022]
9A to 9E, the adhesive 4, the adhesive 8, and the like are omitted.
[0023]
【The invention's effect】
As described above, according to the fireproof panel according to the present invention, (1) even if phenolic foam is used as the plastic foam, since the adhesive with the plastic foam is made of a breathable member, the adhesive strength is greatly improved. The surface material does not peel off after production. (2) Because the concave / convex space of the inorganic board is formed in communication from the mouth to the mouth, and at least one end of the inorganic board is connected to the space of the male / female type connecting part and formed integrally. The reaction gas and water vapor in the core material can be reliably discharged from the joint portion to the outside of the fireproof panel through the space, and warpage, swelling, peeling, and the like of the fireproof panel after manufacture can be prevented. (3) JIS-A-1301 (Fireproof test method for wooden parts of buildings), JIS-A1302 (Fireproof test method for non-combustible structure parts of buildings), JIS-A-1304 (Fire resistance test of building structure parts) It has fireproof performance that can pass the test of method). (4) Fire resistance and mechanical strength are greatly improved by the formation of inorganic board. There are features and effects.
[Brief description of the drawings]
FIG. 1 is a perspective view showing a typical example of a fireproof panel according to the present invention.
FIG. 2 is a partially enlarged cross-sectional view showing a typical example of a fireproof panel according to the present invention.
FIG. 3 is a cross-sectional view showing a joint portion of the fireproof panel according to the present invention.
FIG. 4 is a partially enlarged cross-sectional view showing a typical example of a fireproof panel according to the present invention.
FIG. 5 is a partial enlarged cross-sectional view showing a representative example of a connecting portion of a fireproof panel according to the present invention.
FIG. 6 is an explanatory view showing an example of a breathable anchor member used in the fireproof panel according to the present invention.
FIG. 7 is a partially enlarged view showing another example of the inorganic board used in the fireproof panel according to the present invention.
FIG. 8 is a partially enlarged view showing another example of the inorganic board used in the fireproof panel according to the present invention.
FIG. 9 is a cross-sectional view showing another example of the fireproof panel according to the present invention.
FIG. 10 is a cross-sectional view showing another example of the fireproof panel according to the present invention.
[Explanation of symbols]
α Frame β Fixture A Fireproof panel B Joint cover C Cover plate D Packing material E Caulking material F Fireproof material G Fireproof screen plate 1 Surface material 2 Back surface material 3 Core material 4 Adhesive 5 Inorganic board 6 Concavity and convexity 7 Space 8 Adhesion Agent 9 Breathable anchor member 10 Male connecting portion 11 Female connecting portion 12 Cosmetic face 13 Inorganic packing material 14 Waterproof packing material 15 Plastic foam

Claims (1)

In a long fireproof panel in which an inorganic board is formed on the back surface of the surface material via an adhesive, a plastic foam is sandwiched between the inorganic board and the back surface material, and male and female connection portions are formed at both ends. A plurality of spaces are formed on the back surface of the board by forming irregularities so as to communicate from the mouth to the mouth, and a breathable anchor member is integrally formed between the inorganic board and the plastic foam. Fireproof panel.

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