JPH0978798A - Panel for building - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent the generation of deformation such as an expansion and a camber by using the incombustible aggregate as a core of the core material of a sandwich panel, and mixing the phenol grains, which is obtained by coating the periphery of this core with the resole type phenol, in the core material. SOLUTION: A core material 3, which is made of the synthetic resin foam body such as phenol foam and polyurethane foam, is provided between a surface material 1 and a back surface material 2 such as iron, aluminum and stainless steel so as to form a sandwich panel A. Phenol grains 4, which are obtained by coating the periphery of a core as an incombustible aggregate such as perlite grain and glass beads with the resol type phenol, is mixed in the core material 3 of the panel A. A panel, of which fire protection and fire resistance are improved and which has the excellent mechanical strength, is thereby formed.

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, many invention panels have been invented and put on the market, including a thin plate-shaped front and back materials sandwiching a core material made of a synthetic resin foam.

[0003]

However, in the construction panel using phenol foam as the core material as described above, the core material is mixed with the undiluted solution of resol type phenol, the curing agent and the foaming agent, and the mixture is discharged. Since it is a phenol foam formed by reaction foaming, a reaction gas is generated and remains in the core material, and the condensed water during the reaction is kept at about several tens percent of the weight by the reaction in the phenol foam. During the curing period or after construction of the building panel, moisture changes to steam due to changes in the outside temperature, etc., and since there is no escape path, it remains between the surface material or back surface material of the building panel and the core material. There has been a drawback that gas swelling occurs on the surface material and the back surface of the panel or warps, which adversely affects the building panel over time. Furthermore, construction panels that use phenolic foam as the core material have a problem of water absorption of the phenolic foam, and rainwater etc. may enter the core material and corrode the surface material, back surface material, base material, etc. was there.

Further, when polyurethane foam or isocyanurate foam is used as the core material, it is inferior in fireproof performance to phenol foam, and it is very difficult to obtain a building panel that passes the fireproof structure test and fireproof structure test. It was a thing.

[0005]

In order to eliminate such drawbacks, the present invention uses a flame-retardant aggregate as a core in a core, and a phenol particle coated with a resole-type phenol resin around the core. Since it was a mixed construction panel, when the core material was phenol foam, the bulk volume of the phenol particles reduced the reaction of the resol type phenol, which is the core material, to some extent, and generated gas was reduced. This is a proposal for a building panel in which phenol particles absorb and confine reaction gas and water vapor in a cell and confine it, thereby preventing adverse effects such as gas swelling or warping on the surface material and back surface material of the building panel.

When polyurethane foam or isocyanurate foam is used as the core material, the phenol resin forming the phenol particles and the flame-retardant aggregate as the core improve the fireproof performance and fireproof performance, and at the same time, increase the mechanical strength. It proposes an excellent architectural panel.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a building panel according to the present invention will be described in detail below with reference to the drawings. That is, as shown in FIG. 1 (a) which is a cross-sectional view and FIG. 1 (b) which is an enlarged view of a portion of FIG. Core material 3 whose main ingredient is the body
Is a building panel A which is integrally formed by sandwiching the core material 3 by the self-adhesiveness of the core material 3, and the phenol particles 4 are mixed in the core material 3.

The surface material 1 and the back surface material 2 are, for example, iron, aluminum, copper, stainless steel, titanium, aluminum-zinc alloy plated steel sheet, galvalume steel sheet, enamel steel sheet, clad steel sheet, laminated steel sheet (vinyl chloride steel sheet, etc.), sandwich steel sheet ( Damping steel plate, etc.), vinyl chloride resin, polycarbonate resin, etc. (including, of course, color plates coated with these in various tones), formed into various shapes by roll molding, press molding, extrusion molding, or inorganic Material formed into various arbitrary shapes by extrusion molding, press molding, autoclave culturing, etc., as well as 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,
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 functions as a bulk material, a heat insulating material, a fireproof material for the building panel A, and a binder for the particles 4 which will be described later. It is made of a synthetic resin foam formed by mixing a chemical agent, a flame retardant, etc., and heating, curing and curing. Examples of the synthetic resin foam include phenol foam, polyurethane foam, isocyanurate foam and the like.

Further, in the core material 3, there are phenol particles 4
Is mixed in an arbitrary ratio. As shown in the cross section of FIG. 2, the phenol particles 4 have a substantially spherical shape, and the core 5 serving as a flame-retardant aggregate is coated with a resole-type phenol 6 on the outer periphery thereof.

As the core 5, for example, one or more kinds of perlite particles, glass beads, gypsum slag, talc stone, shirasu balloon, aluminum hydroxide, etc. are used.
Fire resistance and fire resistance are added to the core material 3. In FIG. 2, aluminum hydroxide powder having a good compatibility with the phenol resin is used as the core 5.

Resol-type phenol 6 is an uncured (unreacted type) resol-type phenol or a completely cured (reaction-terminated type) resol-type phenol solid substance on the outer periphery, which may be foamed or non-foamed. But it can be used. The resol-type phenol 6 mainly adds fire resistance and fire resistance to the core material 3 like the core 5 described above.

As the size of the phenol particles 4,
Diameter of about 50 to 1000 μm (preferably 50 μm, 1
00 μm, 300 μm, 500 μm, or 800 μm), which are fine particles and have the same particle size or have mixed phenol particles 4 having different particle sizes. The mixing ratio in the core material 3 is such that 30 to 500 parts by weight is added when the weight ratio of the core material 3 is 100. The content of the core 5 component of the phenol particles 4 is 8 to 5
It is about 0%.

Since the phenol particles 4 are close to a true sphere and have a small amount of secondary aggregates, the phenol particles 4 have good fluidity and are useful for being uniformly distributed in the core material 3. Further, when the core material 3 is phenol foam, the core material 3 is
To some extent reduce the reaction of resol type phenol
While reducing the generated gas, the phenol particles 4 in a dry state absorb the reaction gas and water vapor in the cell and confine it, and the gas swelling or warping occurs on the surface material 1 and the back surface material 2 of the building panel A. It is to prevent the adverse effect.

Furthermore, when polyurethane foam or isocyanurate foam is used as the core material 3, the resole-type phenol 6 forming the phenol particles 4 and the flame-retardant aggregate serving as the core 5 improve the fireproof performance and fireproof performance. With
This is a building panel A having excellent mechanical strength.

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 made of a long metal thin plate and a male type connection formed at one end in the width direction. It is formed of the part 7, the female connecting part 8 formed at the other end, and the decorative surface 9. In addition, in the figure, in particular, an inorganic board 10 and an inorganic packing material 11 are interposed in a joint portion generated by the connection between the building panels A to further improve fire resistance and fire resistance, and a building that passes the fire resistance 1 hour test. Panel A
It is what

[0017]

[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. That is, FIG.
(A) is a building panel A in which graphite 12 that thermally expands to form a carbonized layer is mixed in a core material 3 and further has improved fireproof performance and fireproof performance, and FIG. 4A is an example of a building panel A in which a nonwoven fabric 13 is formed on one or both sides of the core material 3, and FIG. 4C is an example of a building panel A to which a raised sheet 14 is adhered.
3 is an example of a building panel A for improving the adhesive strength between the core material 3 and the core material 3.

5 to 8 are sectional views showing examples of the overall shape of the building panel A, and FIGS. 5 (a) to 5 (c) and FIG.
FIGS. 7A to 7C and FIGS. 7A to 7C show an example of metal siding using a thin metal plate as the front surface material 1 and aluminum vapor-deposited paper as the back surface material 2. Also, FIG.
(A)-(c) is a large-sized metal panel which used a thin metal plate as the surface material 1 and the back surface material 2, and is an example of the building panel A which passes a fireproof 1 hour structure test.

[0019]

As described above, according to the building panel of the present invention, a flame-retardant aggregate is used as a core in the core material, and phenol particles coated with a resole-type phenol resin are mixed around the core. Since it is a building panel, when the core material is phenol foam, the bulk volume of the phenol particles reduces the reaction of the resole-type phenol, which is the core material, to some extent, and reduces the generated gas. However, it is possible to prevent the adverse effects of gas swelling or warping on the surface material and the back surface material of the building panel by absorbing and confining the reaction gas and water vapor in the cell. When polyurethane foam or isocyanurate foam is used as the core material, the phenol resin that forms the phenol particles and the flame-retardant aggregate that serves as the core improve fire protection and fire resistance performance, and at the same time, are structural panels with excellent mechanical strength. Becomes 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 phenol particles 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.

FIG. 6 is an explanatory view showing another example of the building panel according to the present invention.

FIG. 7 is an explanatory view showing another example of the building panel according to the present invention.

FIG. 8 is an explanatory view showing another example of the building panel according to the present invention.

[Explanation of symbols]

 A Architectural panel 1 Surface material 2 Back material 3 Core material 4 Phenolic particles 5 Nucleus 6 Resol type phenol 7 Male connection part 8 Female connection part 9 Decorative surface 10 Inorganic board 11 Inorganic packing material 12 Graphite 13 Nonwoven fabric 14 Raised sheet

Claims (1)

[Claims] 1. A construction panel in which a core material containing a synthetic resin foam as a main component is sandwiched between a front material and a back material, and a flame-retardant aggregate is used as a core in the core material, and a resol is provided around the core. A building panel characterized by mixing phenol particles coated with type phenol.