JPH0932154A - Panel for building - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a panel, in which there is no deformation such as bulging, warpage, etc., after manufacture and which has excellent fireproofness, fire resistance and mechanical strength and is used for building. SOLUTION: A core material 3 consisting of foams mainly comprising a phenol resin is sandwiched by a surface material 1 and a rear material 2 in a panel A for building, and fire-resisting sheets 5 are laminated on the boundary surfaces of the surface material 1, the rear material 2 and the core material 3 through adhesives 4. The periphery of a base material 7 composed of inorganic fibers is coated with a fireproofing material 8 forming a char layer at a high temperature in the fire-resisting sheet 5, and the sheet 5 is formed in a meshy sheet.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to construction,
It can be used as an exterior wall material, roof material, ceiling material, floor material, partition material, fire door, etc., and has no deformation such as swelling or warpage after manufacturing, and is excellent in fire resistance, fire resistance and mechanical strength It is about panels.

[0002]

2. Description of the Related Art In general, a large number of construction panels in which a core material made of phenol foam is sandwiched between a thin plate-shaped surface material and a back surface material have been invented, invented and put on the market.

[0003]

However, in the building panel using phenol foam as the core material as described above, the self-adhesiveness of the phenol foam is generally weak and the surface material, the back surface material and the core material are not easily bonded to each other. The adhesiveness was poor, and peeling was likely to occur. In addition, when the building panel is exposed to high temperature due to a fire or the like, the boundary surface between the surface material, the back surface material and the core material is likely to be a weak point of fire resistance and fire resistance. In addition, when the core material is generally made of various synthetic resin foams, the mechanical strength of the building panel itself is inferior, and due to the aging of the synthetic resin foam, irregularities are generated or warped on the surface of the building panel. In some cases, malfunctions occurred.

[0004]

In order to eliminate such drawbacks, the present invention provides a refractory sheet at the boundary between the surface material, the back surface material and the core material to improve the mechanical strength of the building panel itself. By further improving and further adopting a refractory sheet formed into a mesh shape by coating a refractory coating material that forms a carbonized layer at a high temperature around a base material made of an inorganic fiber, mesh-like unevenness is caused. The anchor effect improves the adhesive strength between the surface material, the back surface material and the core material, and
When a building panel is exposed to a high temperature due to a fire, the fire-resistant coating material forms a carbonized layer and acts as a heat insulating layer that protects the core material from heat, thus improving fire resistance and fire resistance. It proposes a panel.

[0005]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view showing an embodiment of a building panel according to the present invention. That is, the building panel A is a cross-sectional view shown in FIG.
As shown in FIG. 1 (b), which is an enlarged view of part (a) in FIG. 1 (b), a construction panel in which a core material 3 made of a foam material whose main material is a phenol resin is sandwiched between a front surface material 1 and a rear surface material 2. A, and the refractory sheet 5 is disposed on the back surface (the surface on the core material 3 side) of at least one of the surface material 1 and the back surface material 2 (both in the figure) via the adhesive 4.

The surface material 1 and the back surface material 2 are thin metal plates such as iron, aluminum, copper, stainless steel, titanium and aluminum.
Zinc alloy plated steel plate (galvalume steel plate, etc.), enamel steel plate, clad steel plate, laminated steel plate (vinyl chloride steel plate, etc.),
Sandwich steel plates (damping steel plates, etc.), vinyl chloride resin-coated steel plates, polycarbonate resin-coated steel plates, printed steel plates, etc. (Of course, these include color plates coated in various colors)
One of which is formed into various shapes by roll molding, press molding, extrusion molding or the like, or inorganic material which is formed into various arbitrary shapes by extrusion molding, press molding, autoclave aging, etc., and aluminum vapor-deposited paper , Asbestos paper, kraft paper, asphalt felt, metal foil (Al, Fe, Pb, Cu), synthetic resin sheet, rubber sheet, cloth sheet, plaster paper, aluminum hydroxide paper,
It is made of a laminated material of one kind or two or more kinds of glass fiber non-woven fabric or the like, or a sheet-like material that is waterproofed and flame-retarded.

The core material 3 is made of a foam material containing phenol as a main raw material. For example, a stock solution of resol-type phenol, a curing agent and a foaming agent are mixed to form the back surface material 1 or the back surface material 2. It is formed by being discharged to the side and heated to cause reactive foaming. Further, in the core material 3, as various flame-retardant materials, lightweight aggregates (perlite particles, glass beads, gypsum slag, talc stones, silas balloons, aluminum hydroxide, etc.), fibrous materials (glass wool, rock wool, carbon fiber, Graphite, etc.) can be mixed to improve fire resistance and fire resistance.

As shown in FIG. 2 (a), the refractory sheet 5 is
Consisting of a mesh-like sheet material having a plurality of hollow portions 6,
As shown in the sectional view of FIG. 2 (b), the material composition is a base material 7 made of an inorganic fiber such as glass fiber, ceramic fiber or the like having excellent fire resistance performance, and its outer periphery coated with a fire resistant coating material 8. Yes, front surface material 1 and back surface material 2 via adhesive 4
Are to be laminated. Further, since the refractory sheet 5 is formed in a mesh shape, the unevenness formed by the plurality of hollow portions 6 exerts an anchor effect, greatly improves the adhesiveness with the core material 3, and is excellent in elasticity and easy to handle. It is a thing.

As the fire-resistant coating material 8 coating the outer periphery of the fire-resistant sheet 5, raw materials for foaming (raw material for catalyst for reaction of fire-preventing chemicals, raw material for carbon generation, raw material for non-combustible gas generation), color pigment, film-forming resin, Etc. are added. Among these, the carbon-producing raw materials are selected from carbohydrates and polyhydric alcohols, and these are carbonized and foamed in contact with a flame to form a heat insulating layer. Further, the carbon-producing raw materials have an acid group and produce an inorganic acid and an ester, and the inorganic acid is phosphoric acid. This is generated by thermal decomposition of catalysts and fireproofing agents.

Therefore, the fire-resistant sheet 5 forms a carbonized layer between the surface material 1, the back surface material 2 and the core material 3 when the building panel A is exposed to a high temperature due to a fire or the like, It has a function of forming a heat insulating layer and protecting the core material 3 from high temperature.

Examples of the adhesive 4 include an elastomer type epoxy resin, an isocyanate such as an emulsion type such as methylene diisocyanate (abbreviated as MDI), a hot melt type, and a modified isocyanate thereof such as a urethane modified or buret modified isocyanate. One type such as isocyanurate-modified isocyanate is used.

As an example of the overall shape of the building panel A, as shown in FIG. 3, a front surface material 1 and a back surface material 2 which are made of metal and are long thin plates, and a male mold formed at one end in the width direction. Connecting part 9, female connecting part 10 formed at the other end, and decorative surface 1
It is formed from 1. Further, in the figure, the inorganic board 12,
This is a building panel A in which the fireproofness and the fireproofness are further improved by interposing the inorganic packing material 13.

[0013]

[Other Embodiments] The embodiment described above is one embodiment of the building panel A according to the present invention, and a building panel A as shown in FIGS. 4 and 5 can also be used. That is, FIG.
FIG. 4A is an example of a building panel A in which a fireproof sheet 5 is laminated only on the surface material 1 side, and FIG.
It is an example of building panel A laminated only on the side.

Further, FIG. 5 (a) shows the fire-resistant sheet 5 as the core material 3
Example of building panel A with one or more layers laminated in the middle of the building, Fig. 5
(B) is an example in which the amount of the adhesive 4 is reduced by applying the adhesive 4 only to the portion of the fireproof sheet 5 that is in contact with the front surface material 1 or the back surface material 2 (not shown). Of course, the building panel A can be a combination of these.

[0015]

As described above, according to the building panel of the present invention, since the refractory sheet is arranged on the boundary surface between the surface material, the back surface material and the core material, the mechanical strength of the building panel itself is improved. can do. By adopting a fire-resistant sheet that is formed into a mesh shape by coating a fire-resistant coating material that forms a carbonized layer at a high temperature around inorganic fibers, mesh-shaped unevenness exerts an anchoring effect, surface material, The adhesive strength between the back surface material and the core material is improved. When a building panel is exposed to high temperatures due to a fire,
The fire-resistant coating material forms a carbonized layer to serve as a heat insulating layer and protects the core material from heat, so that the building panel has improved fire resistance and fire resistance. There are features and effects such as.

[Brief description of drawings]

FIG. 1 is an explanatory view showing a typical example of a building panel according to the present invention.

FIG. 2 is an explanatory diagram showing an example of a fireproof sheet used in FIG.

FIG. 3 is an explanatory diagram showing an example of the overall shape of a building panel according to the present invention.

FIG. 4 is an explanatory view showing another example of the building panel according to the present invention.

FIG. 5 is an explanatory view showing another example of the building panel according to the present invention.

[Explanation of symbols]

 A Building panel 1 Surface material 2 Back material 3 Core material 4 Adhesive 5 Fireproof sheet 6 Hollow part 7 Base material 8 Fireproof coating material 9 Male connection part 10 Female connection part 11 Decorative surface 12 Inorganic board 13 Inorganic packing material

Claims (1)

[Claims] 1. A building panel in which a front material and a back material sandwich a core material made of a foam containing a phenolic resin as a main component, and at least one of the surface material and the back material is bonded to a side surface of the core material. A fireproof sheet is disposed through an agent, the fireproof sheet is a mesh-like sheet formed by coating a fireproof coating material that forms a carbonized layer at a high temperature around a base material made of an inorganic fiber. A building panel characterized by using the formed one.