Building material panel

Abstract

To provide a building material panel which has both a heat insulation property and a fire resistant property at high levels.SOLUTION: A building material panel 10A includes a pair of surface materials 21, 22 oppositely arranged from each other; and a core material 30 arranged being sandwiched between the pair of surface materials 21, 22. The core material 30 has a constitution in which at least one inorganic core material 31 composed of an inorganic material and at least one organic core material 32 composed of an organic material are stacked. In the panel 10A, the organic core material 31 is sandwiched between the pair of inorganic core materials 31, and at end surfaces on four sides, fire-resistant seal materials 60 are arranged.SELECTED DRAWING: Figure 2

Description

[Technical field]

[0001] The present invention relates to a building panel. [Background technology]

[0002] In some cases, roofs and exterior walls of factories, warehouses, etc. can be easily constructed by joining multiple building material panels. For example, a metal sandwich panel, which has a core material having fire resistance or heat insulation properties sandwiched between a pair of facing materials made of metal plates, has excellent airtightness and heat insulation properties, and is easy to construct (see Patent Document 1, etc.). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2009-7874 A Summary of the Invention [Problem to be solved by the invention]

[0004] In the above-mentioned metal sandwich panel, the fire resistance and insulation properties depend largely on the function of the core material, but there is a demand for the development of a building panel equipped with a core material that exhibits insulation properties over a wide temperature range while also having sufficient fire resistance.

[0005] An object of the present invention is to provide a building material panel that has sufficient heat insulation and fire resistance. [Means for solving the problem]

[0006] (1) The building material panel of the present invention is a building material panel comprising a pair of face materials arranged opposite each other and a core material sandwiched between the pair of face materials, the core material being characterized in that at least one inorganic core material made of an inorganic material and at least one organic core material made of an organic material are stacked together.

[0007] (2) The building material panel of the present invention includes a configuration in which the organic core material is sandwiched between a pair of the inorganic core materials.

[0008] (3) The building material panel of the present invention includes a configuration in which the inorganic core material is sandwiched between a pair of the organic core materials.

[0009] (4) The building panel of the present invention preferably has a configuration in which a fire-resistant sealant is disposed on the end surface formed by the core material.

[0010] (5) In the building material panel of the present invention, the inorganic core material is at least one of rock wool and glass wool, and the organic core material is at least one of isocyanate nurate, phenol, urethane, and polystyrene. Effect of the Invention

[0011] According to the present invention, it is possible to provide a building material panel that has sufficient heat insulation and fire resistance. [Brief description of the drawings]

[0012] [Figure 1] FIG. 2 is a perspective view showing a schematic view of a portion of an exterior wall constructed by joining building material panels according to an embodiment. [Diagram 2] FIG. 2 is a cross-sectional view of the building material panel according to the embodiment, including a joint structure. [Diagram 3] FIG. 2 is a schematic front view of the building material panel according to the embodiment. [Figure 4] FIG. 11 is a cross-sectional view of a building material panel according to another embodiment, including a joint structure. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0013] Hereinafter, an embodiment of the present invention will be described with reference to the drawings. Fig. 1 shows a part of an exterior wall 1 constructed by joining a plurality of building material panels (hereinafter, panels) 10A of an embodiment in the horizontal direction. The panels 10A have a rectangular shape with a longitudinal direction, and are assembled as the exterior wall 1 with the longitudinal direction aligned in the up-down direction. Fig. 2 is a cross-sectional view showing a state in which joint ends 40, 50 of a pair of panels 10A joined in the horizontal direction, i.e., the width direction, are joined together.

[0014] As shown in FIG. 2, the panel 10A has a pair of metal facing materials 21, 22 arranged opposite each other, and a core material 30 arranged between the pair of facing materials 21, 22. That is, the panel 10A is a metal sandwich panel in which the core material 30 is sandwiched between the two facing materials 21, 22. As shown in FIG. 3, a plurality of core materials 30 (three in this case) are arranged in the longitudinal direction of one panel 10A, and the butted end faces are in contact with each other. The end faces of adjacent core materials 30 may be bonded with a resin-based adhesive such as a urethane-based or epoxy-based adhesive. Note that FIG. 3 is an example of the number and arrangement of the core materials 30 arranged in one panel 10A, and is not limited thereto. Also, the core material 30 may be one having the size of the panel 10A.

[0015] The metallic surface materials 21, 22 are, for example, elastic thin plate materials such as color steel plate, fluoro steel plate, PVC steel plate, hot-dip 55% aluminum-zinc alloy plated steel plate (Galvalume Steel Plate (registered trademark)), SUS stainless steel plate, etc., but are not limited to these. The thickness of the surface materials 21, 22 is, for example, about 0.25 to 1.2 mm, but is not limited to this range.

[0016] The core material 30 is formed into a panel shape having a predetermined length, width, and thickness. The core material 30 is configured by stacking at least one inorganic core material 31 made of an inorganic material and at least one organic core material 32 made of an organic material. The core material 30 of the embodiment has a three-layer structure in which one organic core material 32 is sandwiched between a pair of inorganic core materials 31.

[0017] Each of the two inorganic core materials 31 constitutes an outer portion of the core material 30, and is bonded to the face materials 21, 22 with a resin adhesive, such as a urethane-based or epoxy-based adhesive. The two inorganic core materials 31 have the same thickness, and the thickness is, for example, about 10 to 30% of the entire core material 30, but is not limited to this. The thicknesses of the two inorganic core materials 31 may be different. At least one of rock wool and glass wool is used as the inorganic core material 31, but is not limited to this as long as it is made of an inorganic material and has the function of a core material. For example, in the case of rock wool, it is impregnated with a binder resin such as phenol resin at an appropriate ratio, and has a strength of, for example, 120 to 220 kg / m 3 The material is compressed to a high density of about 100%.

[0018] One organic core material 32 sandwiched between two inorganic core materials 31 is disposed at the center in the thickness direction of the core material 30. The thickness of the organic core material 32 is, for example, about 40 to 60% of the entire core material 30, but is not limited to this. At least one of resin materials such as isocyanate nurate, phenol, urethane, polystyrene, etc. is used for the organic core material 32, but is not limited to this as long as it is made of an organic material and has the function of a core material. For example, a resin foam such as urethane foam, phenol foam, isocyanate nurate foam, polystyrene foam, etc. is preferably used for the organic core material 32. The inorganic core material 31 is bonded to both sides of the organic core material 32 with a resin adhesive such as a urethane-based or epoxy-based adhesive. The inorganic core material 31 and the organic core material 32 may not be bonded to each other and may simply be overlapped.

[0019] The overall dimensions of the panel 10A are arbitrary and correspond to the exterior wall 1 to be constructed, but are not limited to, for example, a longitudinal dimension (vertical direction on the exterior wall 1) of approximately 900 to 12,000 mm, a width dimension of approximately 400 to 1,200 mm, and a thickness of approximately 25 to 300 mm.

[0020] As shown in Fig. 2, the panel 10A has a first joint end 40 and a second joint end 50 at one end (the right end in Fig. 2) and the other end (the left end in Fig. 2) in the width direction, respectively. The first joint end 40 and the second joint end 50 have shapes that fit together. The panels 10A are joined together by fitting the first joint end 40 of one panel 10A to the second joint end 50 of another panel 10A adjacent to that panel 10A.

[0021] The first joint end 40 has a groove-shaped recess 41 extending along the longitudinal direction of the panel 10A (the front-rear direction of the paper in FIG. 2), and an inner protrusion 42 with a trapezoidal cross section extending along the longitudinal direction is formed at the bottom of the recess 41. The recess 41 is formed by the protruding pieces 21a, 22a of the facing materials 21, 22. The bottom of the recess 41 and the inner protrusion 42 are formed by processing the end face of the organic core material 32 of the core material 30. The protruding pieces 21a, 22a are formed by folding back the end portions of the facing materials 21, 22 in the width direction. The inner protrusion 42 is disposed in the center of the thickness direction of the panel 10A. The height of the inner protrusion 42 is smaller than the protruding length of the protruding pieces 21a, 22a, and does not protrude outward in the width direction from the recess 41.

[0022] The second joint end 50 is formed with a protrusion 51 extending along the longitudinal direction of the panel 10A, and the protrusion 51 is further formed with an inner recess 52 with an inverted trapezoidal cross section extending along the longitudinal direction. The protrusion 51 is formed by reducing the thickness of the panel 10A from both sides in the thickness direction. The inner recess 52 is disposed in the center of the panel 10A in the thickness direction. The inner recess 52 is formed by processing the end face of the organic core material 32 of the core material 30.

[0023] As shown in FIG. 2, a fireproof sealant 60 is disposed on an end surface of the panel 10A formed by the core material 30, and the end surface is covered with the fireproof sealant 60. As shown in FIG. 3, the fireproof sealant 60 is disposed on all of the end surfaces of the four sides of the panel 10A. That is, the end surfaces of the four sides of the panel 10A are covered with the fireproof sealant 60, and the core material 30 is not exposed or is partially exposed. The fireproof sealant 60 may be, for example, a thermally expandable foaming material containing a resin or graphite that foams when heated, but is not limited thereto. This type of foaming material may be of a type that is in the form of an adhesive seal and is placed by adhering it to the target surface, or of a type that is in the form of a paint and can be applied to the target surface.

[0024] The panels 10A are joined together by fitting the first joint edge 40 of one panel 10A to the second joint edge 50 of the other panel 10A adjacent to the first panel 10A. More specifically, the convex portion 51 of the second joint edge 50 is fitted into the concave portion 41 of the first joint edge 40, and the inner convex portion 42 of the first joint edge 40 is fitted into the inner concave portion 52 of the second joint edge 50. This joins the panels 10A together in the width direction. A predetermined number of panels 10A are joined together in this manner in the width direction, and the exterior wall 1 is constructed.

[0025] The joints, which are the joints of the joined panels 10A, are filled with the fireproof sealant 60. To fill the joints with the fireproof sealant 60, it is necessary that the fireproof sealant 60 is provided on at least one side of the two joined panels 10A. Therefore, the fireproof sealant 60 may be provided on only one side of the first joint end 40 and the second joint end 50, and the fireproof sealant 60 may be filled in the joints when the panels are joined. This fireproof sealant 60 provides a heat-shielding effect at the joints of the panels 10A in the event of a fire, for example, and improves fire resistance. In addition, the joints between the panels 10A are blocked by the fireproof sealant 60, preventing the passage of water, other liquids, or moisture including steam, and ensuring the water resistance and steam resistance of the exterior wall 1.

[0026] The panel 10A of the embodiment includes a pair of face materials 21, 22 arranged opposite each other, and a core material 30 sandwiched between the pair of face materials 21, 22, and the core material 30 is formed by stacking at least one inorganic core material 31 made of an inorganic material and at least one organic core material 32 made of an organic material. In more detail, the core material 30 of the embodiment has a configuration in which one organic core material 32 is sandwiched between the pair of inorganic core materials 31.

[0027] According to the panel 10A of the embodiment, high fire resistance is exhibited by the inorganic core material 31. Meanwhile, the organic core material 32 can exhibit heat insulation properties in a wide temperature range, for example, from the deep freezing range (about -55°C) to a constant temperature (about 15°C) and a temperature above the constant temperature. This allows the panel 10A to be effectively used as a panel that has both sufficient heat insulation properties and fire resistance.

[0028] In the panel 10A of the embodiment, a fireproof sealant 60 is disposed on the end surface formed by the core material 30. This provides a heat-shielding effect at the joints of the panel 10A, improving fire resistance.

[0029] FIG. 4 shows a building material panel 10B according to another embodiment of the present invention. This panel 10B has a two-layer structure formed by stacking one inorganic core material 31 and one organic core material 32. The thicknesses of the core materials 31, 32 are approximately the same, but the thicknesses of the two may be different. The panel 10B has a first joint end 40 and a second joint end 50 similar to those of the above panel 10A, and the joint structure between the panels 10B is common.

[0030] The panel 10B of this embodiment also includes the inorganic core material 31 and the organic core material 32, and can therefore be effectively used as a panel that has sufficient heat insulation and fire resistance.

[0031] The building material panel of the present invention is not limited to the form of the panels 10A and 10B of the above embodiment as long as it has the configuration of the present invention. For example, the building material panel of the present invention also includes a configuration in which an inorganic core material 31 is sandwiched between a pair of organic core materials 32, which is a stacking pattern opposite to that of the panel 10A. Furthermore, the number and stacking pattern of the inorganic core materials 31 and the organic core materials 32 are arbitrary, and may be a layer configuration in which, for example, two of each of the core materials 31 and 32 are stacked alternately, or three of one and two of the other are stacked alternately. In addition, the building material panel may have a configuration without the fireproof sealant 60.

[0032] The building material panel of the present invention is not limited to being used to construct exterior walls as in the above embodiment, but can also be used as a panel to construct various types of walls such as interior walls and partition walls, as well as ceilings, etc. [Explanation of symbols]

[0033] 10A, 10B...building material panels, 21, 22...face material, 30...core material, 31...inorganic core material, 32...organic core material, 60...fire-resistant sealing material.

Claims

1. A building material panel comprising a pair of facing materials disposed opposite each other and a core material disposed between the pair of facing materials, A building material panel, characterized in that the core material is formed by stacking at least one inorganic core material made of an inorganic material and at least one organic core material made of an organic material.

2. 2. The building panel according to claim 1, wherein the organic core material is sandwiched between a pair of the inorganic core materials.

3. 2. The building panel according to claim 1, wherein the inorganic core material is sandwiched between a pair of the organic core materials.

4. 4. The building material panel according to claim 1, further comprising a fire-resistant sealing material disposed on an end surface formed by the core material.

5. The inorganic core material is at least one of rock wool and glass wool, 2. The building material panel according to claim 1, wherein the organic core material is at least one of isocyanate nurate, phenol, urethane, and polystyrene.

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