JPH0960152A - Architectural panel - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain an architectural panel which is not deformed like swelling, warping, etc., and also excellent in fireproof and fireresistant properties and further, mechanical strength. SOLUTION: A core material 3 made of a synthetic resin foam body chiefly containing phenol resin is sandwiched by the front face material 1 and the rear face material 2. A long rugged rib 6 is formed at least on the front face material 1. An air-permeable sheet 5 is arranged through an adhesive 4 at the recesses 6a of the rugged rib 6 at the rear face side of the front face material 1.

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 outer wall material, roof material, ceiling material, floor material, partition material, fire door, etc., and it is free from deformation such as swelling and warping after manufacturing, and has excellent fire resistance, fire resistance, and mechanical strength. It is related to the panel for use.

[0002]

2. Description of the Related Art In general, a large number of building panels in which a core material made of a phenol resin foam (phenol foam) is sandwiched between a thin plate-shaped surface material and a back surface material have been invented, devised 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. It was inferior in adhesiveness and easily peeled off. Further, generally, when the core material is made of various synthetic resin foams, the mechanical strength of the building panel itself is inferior, and moreover, due to the change with time of the synthetic resin foams,
In some cases, the surface of the building panel may be uneven or warped. Furthermore, a reaction gas is generated during the formation of the core material and remains in the core material, or the condensed water in the phenol foam has a weight of several tens of weight.
Percentage is maintained, moisture changes to steam due to changes in the outside temperature, etc. during the curing period of the product or after the construction of the construction panel, and there is no escape path, so the surface material or back surface material of the construction panel and the core material However, there may be a problem that the building panel is adversely affected over time, such as gas swelling or warping on the back surface of the surface material or the back surface of the back material of the building panel.

[0004]

According to the present invention, in order to eliminate such drawbacks, a breathable sheet is interposed between the surface material and the core material, so that the mechanical strength of the building 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 discharged to the outside of the building panel from the void formed by the breathable sheet and the uneven ribs of the surface material, and the building panel after manufacturing It proposes a building panel that does not have adverse effects such as warpage and blistering.

[0005]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a building panel A according to the present invention will be described in detail below with reference to the drawings. That is,
The building panel A is a cross-sectional view of FIG. 1A and FIG.
As shown in FIG. 1 (b), which is an enlarged view of a portion in (a), a construction in which a core material 3 made of a synthetic resin foam whose main material is a phenol resin is sandwiched between a surface material 1 and a back material 2 is constructed. A panel A for use, in which a breathable sheet 5 is arranged at least on the back surface side (surface on the side of the core material 3) of the surface material 1 via an 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, Enameled steel plate, Clad steel plate, Laminated steel plate (PVC steel plate, etc.), Sandwich steel plate (Vibration suppression steel plate, etc.), Vinyl chloride resin, Polycarbonate resin, etc. (Of course, color plates coated with these in various colors. Roll molding, press molding,
Various shapes such as extrusion molding, inorganic materials such as 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, gypsum paper, aluminum hydroxide paper, glass fiber non-woven fabric, etc., laminated with one or more kinds, or composed of waterproof and flame-retardant sheet-like material Is.

Further, at least the surface material 1 has a concave portion 6
The concave-convex rib 6 composed of a and the convex portion 6b is continuously formed. The concavo-convex ribs 6 improve the mechanical strength of the surface material 1 and are attached to the air-permeable sheet 5 described later with the adhesive 4.

The core material 3 is made of a synthetic resin foam containing phenolic resin as a main raw material. For example, a stock solution of resol type phenol, a curing agent and a foaming agent are mixed to prepare a surface material 1 or a back surface material. It is formed by discharging it on the back side of No. 2 and heating it to react, foam and cure. Also,
Light-weight aggregates (perlite particles, glass beads, gypsum slag, talc stones, shirasu balloons, aluminum hydroxide, etc.), fibrous materials (glass wool, rock wool, carbon fibers, graphite, etc.) as various flame retardants in the core material 3. ) Can be mixed to improve fire resistance and fire resistance.

The breathable sheet 5 is made of, for example, a sheet material as shown in FIG. 2 (a) or a mesh material as shown in FIG. 2 (b), and has air permeability. Further, the breathable sheet 5 improves the mechanical strength of the building panel A itself and also improves the adhesive strength between the core material 3 and the surface material 1.

The breathable sheet 5 is adhered to the concave portions 6a of the concave and convex ribs 6 of the surface material 1 via the adhesive 4, and the breathable sheet 5 and the convex portions 6b of the concave and convex ribs 6 are formed. A void α having a substantially triangular cross section is formed therebetween.

As shown by the arrow in FIG. 1 (b), the void α is a portion where the reaction gas and water vapor generated from inside the core 3 after the core 3 is manufactured are released through the breathable sheet 5. In addition, the released gas is released to the outside from the ostium of the building panel A through the void α so that the manufactured building panel A is not warped or swelled. is there.

Further, examples of the adhesive 4 include an elastomer type epoxy resin, an emulsion type such as an isocyanate, for example, methylene diisocyanate (abbreviation: MDI), a hot melt type, and a modified isocyanate thereof such as a urethane modified or buret modified isocyanate. One type of isocyanurate-modified isocyanate or the like is used, and it is a breathable type so as not to prevent the release of the reaction gas and water vapor from the core material 3, or the surface material 1 as shown in FIG. 1 (b). Concave portion 6 of the uneven rib 6 of
The adhesive 4 is applied only to a.

As an example of the overall shape of the building panel A, as shown in FIG. 3, a front surface member 1 and a back surface member 2 each made of a long metal thin plate and a male type connection formed at one end in the width direction. It is formed from the portion 7, the female connecting portion 8 formed at the other end, and the decorative surface 9, and the uneven ribs 6 are provided along the longitudinal direction of the building panel A. In addition, in the figure, in particular, the building board A is further improved in fire resistance and fire resistance by interposing the inorganic board 10 and the inorganic packing material 11 in the joint portion generated by the connection of the building panels A to each other. is there.

[0014]

[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 FIG. 4 can also be used. That is, FIG. 4 shows the construction panel A in which the back and forth material 2 is also formed with the uneven ribs 6 and the breathable sheet 5 is formed.

[0015]

As described above, according to the building panel of the present invention, the mechanical strength of the building panel itself is improved by the uneven ribs and the breathable sheet. Since the adhesive is used, the adhesive strength between the surface material and the core material is improved. The reaction gas and water vapor in the core material can be released to the outside of the building panel from the voids formed by the air-permeable sheet and the uneven ribs of the surface material, and the warp and swelling of the manufactured building panel can be prevented. 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 view showing an example of a breathable sheet used in the building panel according to the present invention.

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.

[Explanation of symbols]

 α Void A Construction panel 1 Surface material 2 Backside material 3 Core material 4 Adhesive 5 Breathable sheet 6 Uneven rib 6a Recessed portion 6b Convex portion 7 Male connection portion 8 Female connection portion 9 Decorative surface 10 Inorganic board 11 Inorganic system Packing material

Claims (1)

[Claims] 1. A construction panel in which a core material made of a synthetic resin foam containing a phenol resin as a main component is sandwiched between a surface material and a back surface material, and at least the surface material is provided with long-shaped uneven ribs. A building panel, wherein a breathable sheet is disposed on the back surface side of the surface material in the concave portions of the concave-convex rib via an adhesive.