JP3702913B2 - Architectural 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 building panel having excellent fire resistance and mechanical strength.
[0002]
[Prior art]
In general, a large number of architectural panels in which a core material made of a synthetic resin foam is sandwiched between a thin plate-like surface material and a back surface material have been invented and marketed. Moreover, in a building panel using a synthetic resin foam as a core material as described above, as a core material for improving fire resistance and fire resistance and obtaining a fire resistant structure (JIS-A-1304) with a single building panel Phenol foam is drawing attention.
[0003]
[Problems to be solved by the invention]
However, as described above, a building panel using phenol foam as a core material certainly improves fire resistance and fire resistance, but phenol foam itself absorbs water and has poor rain after construction panel construction. However, there is a drawback that rainwater penetrates into the core of the building panel and causes problems such as corrosion and mold. In addition, phenol foam has weak adhesiveness and has a defect in integration with the front and back materials, and it is necessary to use a separate adhesive to improve the adhesion, or through an adhesive improvement material such as a nonwoven fabric or a net. There was a disadvantage in terms of cost.
[0004]
[Means for Solving the Problems]
The present invention eliminates such drawbacks by making the core material isocyanurate foam, thereby eliminating the water absorption of the core material, improving the waterproof property, and being excellent in the adhesive strength between the surface material and the back material, Furthermore, the fire resistance and fire resistance of the isocyanurate foam are supplemented by a fire resistant sheet laminated in the middle of the core material, and the construction panel using the isocyanurate foam alone has a fire resistance of 30 minutes or more (JIS-A-1304) The panel for construction which can acquire is proposed.
[0005]
【Example】
Hereinafter, an embodiment of a building panel according to the present invention will be described in detail with reference to the drawings. That is, as shown in FIG. 1 which is a cross-sectional view of the building panel A, a self-adhesive possessed by the core material 3 is sandwiched between the front material 1 and the back material 2 with the core material 3 made mainly of isocyanurate foam. It is the panel A for construction formed integrally by nature, and the fireproof sheet 4 is laminated near the middle of the layer thickness of the core material 3.
[0006]
The surface material 1 and the back material 2 are metal sheets excellent in fire resistance and fire resistance, 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 (vinyl chloride steel plate) Etc.), sandwich steel plates (damping steel plates, etc.), and (of course, including color plates coated with various colors) are roll-formed and press-formed.
[0007]
Moreover, when it is set as the panel A for construction which can acquire only a fire prevention structure (JIS-A-1301, JIS-A-1302), since the fire prevention structure test does not have a heating test from the back surface, the back surface material 2 is vapor-deposited with aluminum. 1 type of 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 nonwoven fabric, or the like It can also be formed from a laminate of two or more types, or a sheet-like material that has been waterproofed and flame-retardant treated.
[0008]
The core material 3 mainly functions as a bulking material, a heat insulating material, and a fireproofing material for the building panel A. The main material 3 is an isocyanurate resin, and a foaming agent is mixed therein to heat, react, cure. Cured and formed from a foam having a density of about 20 to 200 kg / cubic meter. In addition, although a substitute Freon (141b) may be used as a foaming agent, the non-fluorocarbon foaming using foaming agents, such as a carbon dioxide gas and a cyclopentane, is preferable also from the surface of environmental conservation. The building panel A integrates the surface material 1, the back material 2 and the core material 3 by the self-adhesive property of the core material 3.
[0009]
Further, the core material 3 is formed by mixing the isocyanurate resin with a flame retardant such as aluminum hydroxide or ammonium polyphosphate at a certain ratio (about 3 to 29 parts by weight when the isocyanurate resin is 100 parts by weight) to form the core material 3. The fire resistance and fire resistance of the material 3 can be remarkably improved.
[0010]
The refractory sheet 4 is laminated at least in the middle of the layer thickness of the core material 3, and is laminated together when the core material 3 is formed, and is integrated as the building panel A. Further, as shown in FIG. 2, the configuration is a long sheet-like material having a total thickness of about 0.5 to 10 mm. The surface layer 5 and the back surface layer 6 formed in a sheet shape, The resin sheet 7 to be formed is sandwiched and laminated integrally.
[0011]
The composition of the surface layer 5 and the back surface layer 6 consists of what bound the graphite component and the inorganic fiber with the synthetic resin (for example, phenol resin ) . Furthermore, as the graphite component, for example, it is composed of a carbon compound such as graphite (foamable or non-foamable), carbon black, etc., and is carbonized when receiving heat to form a heat insulating layer and prevent heat conduction. . The graphite component accounts for about 50 to 80% of the weight ratio of the entire surface layer 5 and back layer 6.
[0012]
Examples of the inorganic fibers are made of an inorganic compound having high heat resistance such as glass fiber, ceramic fiber, rock wool, asbestos and the like, and the surface layer 5 and the back layer 6 have some strength by entanglement with the fibrous material. There is work to have. In addition, an inorganic fiber occupies about 5%-20% of the weight ratio of the surface layer 5 and the back surface layer 6 whole.
[0013]
The phenol resin functions as a binder for the graphite component and the inorganic fiber, and the phenol resin itself has high fire resistance and fire resistance. In addition, by binding the graphite component and the inorganic fiber with a synthetic resin phenolic resin, flexibility, plasticity, and elasticity are added to the front surface layer 5 and the back surface layer 6, and it can be formed into a coiled shape or a coil shape. The fireproof sheet 4 is very easy to handle. The phenolic resin accounts for about 10% to 30% of the weight ratio of the entire surface layer 5 and back surface layer 6.
[0014]
The resin sheet 7 is foamed at a high temperature such as graphite and carbon black using a synthetic resin having plasticity such as polyethylene, polypropylene, nylon, cellophane, vinyl chloride, polycarbonate, polyurethane, butyl rubber, EPDM, EPM and the like as a binder. A carbide forming the carbonized layer is mixed, and further, it is formed in a net shape in which a plurality of through holes 8 are formed.
[0015]
Adhesion and integration of the surface layer 5 and the back surface layer 6 and the resin sheet 7 are performed by separately using an adhesive (not shown) or by laminating the respective layers by heat fusion.
[0016]
The resin sheet 7 functions as a bulking material for the refractory sheet 4 and imparts flexibility, elasticity, and plasticity to the refractory sheet 4 so that the entire refractory sheet 4 can be rolled up, and is easy to carry and handle. Furthermore, after the formation of the fireproof sheet 4, the plurality of through holes 8 formed in the resin sheet 7 are sandwiched between the front surface layer 5 and the back surface layer 6 to form a sealed space α, and there are many spaces α. Therefore, it is useful for further improving the heat insulation of the building panel A.
[0017]
Moreover, as shown in FIG. 3 in which the heat transfer is indicated by arrows, the fireproof sheet 4 is heated from the surface material 1 side, and when the applied heat reaches the fireproof sheet 4, the fireproof sheet 4 transfers the heat to the fireproof sheet. 4 has a characteristic of heat propagation in the horizontal direction along the line 4. Thereby, heat is prevented from reaching the back surface material 2 side and exhibits a very high heat resistance effect.
[0018]
Furthermore, since the carbide | carbonized_material contained in the resin sheet 7 of the part expands and expands by a heat | fever and forms the carbonization heat insulation layer 9 in the part to which heat was added to the fireproof sheet 4, further fire resistance and fire resistance are promoted. Can do. At this time, the space α is useful as a void for forming the carbonized heat insulation layer 9 by the foaming and expansion of the carbide by heat.
[0019]
Moreover, since the fireproof sheet 4 is laminated near the middle (center) of the layer thickness of the core material 3, it has the same high heat resistance function whether it is heated from the surface material 1 side or the back material 2 side. It can be demonstrated. Therefore, it works effectively in the fireproof structure test (JIS-A-1304) with a heating test from both sides of the front and back surfaces.
[0020]
Also, as an example of the overall shape of the building panel A, as shown in FIG. 4, a surface material 1 made of a long metal plate, a back material 2, a male connecting portion 10 at one end in the width direction, and the other end This is a drop male-female fitting structure in which a female connecting portion 11 is formed. In addition, in the figure, the construction which passes the fire resistance 1 hour test is achieved by interposing the inorganic board 12 and the inorganic packing material 13 at the joint portion generated by the connection of the building panels A, and further improving the fire resistance and fire resistance. Panel A.
[0021]
[Other examples]
What has been described above is an embodiment of the building panel according to the present invention, and the building panel A as shown in FIGS. 5 to 8 or a member constituting the building panel A can be used. That is, FIG. 5A is an example of a building panel A in which two layers of fireproof sheets 4 are formed in the middle part of the core material 3. FIG. 5B is an example of the building panel A in which the fireproof sheet 4 is bonded to the back side (core material 3 side) of the surface material 1 and the back material 2 via an adhesive 14 separately.
[0022]
FIG. 6 shows another example of the refractory sheet 4, FIG. 6A shows an example in which the internal resin sheet 7 is formed in a mesh shape, and FIG. This is an example in which the pitch is appropriately formed.
[0023]
FIGS. 7 and 8 are modified examples of the shape of the building panel A, FIG. 7A is an example in which the fireproof sheet 4 is laminated on the full width of the building panel A, and FIG. Inserting a flame retardant (calcium silicate extrusion molding plate, high-density phenolic resin extrusion molding plate, etc.) into the end portions of the male coupling portion 10 and the female coupling portion 11 to improve the fire resistance performance of the joint portion It is an example of the panel A for construction which aimed at the improvement of the foamability of the core material 3. FIG. FIG. 7C shows an example in which the male connecting portion 10 and the female connecting portion 11 of the building panel A are modified.
[0024]
FIGS. 8A to 8C are examples in which the shapes of the connecting portions are respectively deformed. The building panel A is formed so as not to directly touch the surface material 1 and the back surface material 2 and strives to prevent a thermal bridge. It is an example. Of course, it can also be set as the building panel A which combined these members, respectively.
[0025]
As described above , according to the building panel according to the present invention, since the core material is isocyanurate foam, (1) the core material itself does not absorb water and is excellent in waterproofness. (2) Excellent adhesion strength between the front surface material and the back surface material. Moreover, since the fireproof sheet was laminated near the middle of the core material, (3) the fireproof sheet propagates heat in the horizontal direction, prevents heat from being transmitted to the back surface of the building panel, and improves heat resistance. (4) Since there are many spaces in the fireproof sheet, high heat insulation performance is exhibited. (5) Since the refractory sheet is carbonized and foamed at a high temperature to form a carbonized heat insulating layer, the refractory sheet is excellent in fire resistance and fire resistance. (6) Refractory sheets function in the same way whether heated from the front side or from the back side, exhibiting high and uniform fire resistance, and obtaining a fire resistance structure (JIS-A-1304) with a fire resistance of 30 minutes or more it can. There are features and effects.
[Brief description of the 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 fireproof sheet used in FIG. 1;
FIG. 3 is an explanatory diagram showing heat propagation of a building panel according to the present invention.
FIG. 4 is an explanatory diagram showing an example of the overall shape of a building panel according to the present invention.
FIG. 5 is an explanatory view showing another example of a building panel according to the present invention.
FIG. 6 is an explanatory view showing another example of a fireproof sheet.
FIG. 7 is an explanatory view showing another example of a building panel according to the present invention.
FIG. 8 is an explanatory view showing another example of a building panel according to the present invention.
[Explanation of symbols]
A building panel α space 1 surface material 2 back material 3 core material 4 fireproof sheet 5 surface layer 6 back surface layer 7 resin sheet 8 through hole 9 carbonized heat insulating layer 10 male connecting portion 11 female connecting portion 12 inorganic board 13 inorganic system Packing material 14 Adhesive

Claims (1)

In a building panel in which a core material mainly composed of isocyanurate foam is sandwiched between a front surface material and a back surface material, a fireproof sheet is laminated at least in the middle of the layer thickness of the core material, and the fireproof sheet is composed of a graphite component and an inorganic fiber. A net that contains a surface layer formed by mixing and binding with a synthetic resin, a back layer formed in the same manner, and a carbide that forms a carbonized layer by foaming at a high temperature in the surface layer and the back layer. An architectural panel characterized by being formed by laminating a resin sheet in a sandwich structure.

Images