JPH10219874A - Building panel - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a panel with an excellent fire resistance and fire prevention, even if a core material is made from an isocyanurate foam. SOLUTION: For a building panel A, a core material 3 is sandwiched between a facing material 1 and a backing material 2. A male connection 4 and a female connection 5 are formed at both edges of the panel A and an incombustible joint material C with at least one layer of fire resistance sheet D laminated in a plate base material B mainly containing an inorganic material or high density synthetic resin material is arranged in the core material 3 for the connection. One or more layer of fire resistance sheet D is arranged in the core material 3 for the panel A, ranging from the male connection 4 to the female connection 5. It has a core formed by binding at least a graphite component and inorganic fiber with a synthetic resin to be sandwiched between a facing skin and a backing skin formed of non-woven cloths.

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 number of architectural panels in which a core material made of isocyanurate foam is sandwiched between a front and back surface material in the form of a thin metal plate have been invented, devised, and put on the market. Further, in a building panel using a synthetic resin foam as a core material as described above, the fire resistance and fire resistance are improved, and the building panel alone has a fire resistant structure (JIS-A-13).
In order to obtain 04), the core material was generally phenol foam.

[0003]

However, in the building panel using phenol foam as a core material as described above, fire resistance and fire resistance are certainly improved, but the phenol foam itself has water absorption, and If the raining after the construction panel construction was poor, rainwater would penetrate into the core material of the building panel, causing defects such as corrosion and mold generation. Furthermore, phenol foam has poor adhesiveness and has a defect in integration with the surface material and the back surface material. To improve the adhesiveness, it is necessary to use a separate adhesive or to use an adhesive improving material such as a nonwoven fabric or a net. There was a disadvantage in terms of cost.

[0004]

According to the present invention, in order to eliminate such drawbacks, the core component is made of isocyanurate foam, thereby eliminating water absorption of the core material and improving waterproofness. Architectural panels that have excellent adhesion strength to front and back materials, and supplement the fire resistance and fire resistance of isocyanurate foam with a fire-resistant sheet laminated near the center of the core material, and are particularly weak points in fire protection performance A non-combustible joint material made by laminating at least one layer of a fire-resistant sheet on a plate-like base material made of an inorganic material or a high-density synthetic resin material is disposed at a fitting portion (an end portion of a building panel). The construction panel using isocyanurate foam alone has a fire resistance of 30 minutes or more (J
IS-A-1304) is proposed.

[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, as shown in FIG. 1 which is a partially cutaway perspective view of a building panel A, a core material 3 mainly composed of isocyanurate foam is sandwiched between a front surface material 1 and a back surface material 2 to form a core material 3. The building panel A is formed integrally by the self-adhesive property of the building panel A. A male connecting portion 4 and a female connecting portion 5 are formed at the end of the building panel A, and an inorganic material or a high material is formed in both connecting portions. At least one plate-shaped substrate B made of a density synthetic resin
One or more layers of the fire-resistant sheet D are arranged in the core material 3 of the building panel A from the male connection part 4 to the female connection part 5 with a non-combustible base material C formed by laminating the fire-resistant sheets D in layers. It is made of a long plate material.

[0006] The surface material 1 and the back surface material 2 are thin metal sheets having excellent fire resistance and fire resistance, for example, iron, aluminum, copper, stainless steel, titanium, aluminum / zinc alloy plated steel sheets, galvalume steel sheets, enamel steel sheets, clad steel sheets, laminated steel sheets. (PVC steel sheet, etc.), sandwich steel sheet (damping steel sheet, etc.),
(Of course, these include color plates painted in various colors)
Is formed by roll forming and press forming.

Further, a fire prevention structure (JIS-A-1301,
In the case of building panel A that can acquire only JIS-A-1302), there is no heating test from the back side in the fire prevention structural test. Metal foil (A
l, Fe, Pb, Cu), synthetic resin sheet, rubber sheet, cloth sheet, gypsum paper, aluminum hydroxide paper, glass fiber non-woven fabric, etc., or a laminate of two or more kinds,
Alternatively, it can be formed from a sheet-like material subjected to a waterproof treatment and a flame retardant treatment.

The core material 3 mainly functions as a bulking material, a heat insulating material, and a fireproof material for the building panel A. The core material 3 is made of an isocyanurate resin as a main material, and a flame retardant material (aluminum hydroxide, aluminum hydroxide, etc.) is used. Calcium silicate, ammonium polyphosphate, expandable graphite, etc.) and a foaming agent.
Reaction, curing, curing, formed, density 20-200
It is made of a foam of about Kg / cubic meter. As the foaming agent, alternative Freon (141b) may be used, but from the viewpoint of environmental protection, non-fluorocarbon foaming using a foaming agent such as carbon dioxide or cyclopentane is preferred. The building panel A integrates the surface material 1, the back surface material 2 and the core material 3 by the self-adhesive property of the core material 3.

Further, a flame retardant such as aluminum hydroxide or ammonium polyphosphate is mixed with the isocyanurate resin in a fixed ratio (about 3 to 29 parts by weight when the isocyanurate resin is 100 parts by weight) to form the core material 3. Thereby, the fire resistance and fire resistance performance of the core material 3 can be significantly improved.

As shown in FIG. 1, the male connecting portion 4 has a male part 7 in which one end of the building panel A is provided with a step 6 at one surface material 1 side, and a recessed part in the middle of the step 6. Fixed groove 8
And a recess 9 in which the tip of the male part 7 is recessed toward the core 3 side.
And the ridges 10 provided on the back material 2 side.

As shown in FIG. 1, the female connecting portion 5 has a cover portion 11 extending from the surface material 1 at the other end of the building panel A and protruding therefrom, and a concave portion from the cover portion 11 to the core material 3 side. The female real part 12 is formed by a female part 12 which is depressed, a convex part 13 having the distal end of the female real part 12 protruding from the end part, and an L-shaped notch provided on the side of the back material 2 and a concave ridge 14. Things.

That is, by forming the male-type connecting portion 4 and the female-type connecting portion 5 in a male-female configuration as described above, the connection and fixation of the building panels A to each other as shown in FIG. It will be easy.

More specifically, as shown in FIG.
Connection of the building panels A is performed by first driving a fixing tool β such as a screw screw or a tex into a wall base α such as a lip grooved steel material from the fixing groove 8 of the lower building panel A1 to connect the lower building panel A1. It is to be fixed to the wall base α. The female part 12 of the upper building panel A2 is fitted to the male part 7 of the lower building panel A1, the concave part 9 is fitted to the convex part 13, and the convex ridge 10 is fitted to the concave ridge 14 from above. At the same time, the head of the fixing tool β is covered with the cover part 11 so as not to appear in the appearance, and the building panels A are connected to each other.

As described above, in order to form the wall surface, it is good to connect and fix the building panels A sequentially from the base direction toward the eaves direction. For the base, eaves, opening, out-going corner, and in-going corner, use a corresponding accessory (drainer, starter, retaining edge, outgoing-going material, ingoing-going material, etc.) and sealing material. Things.

A waterproof sealing material E is interposed in the female portion 12 and a fire-resistant packing material F having waterproof and fire-resistant properties is interposed at the bottom of the concave portion 9 to improve the waterproofness of the joint joint. It improves fire resistance. Note that the waterproof sealing material E and the fire-resistant packing material F are used for building panels A.
It is preferable that the self-adhesive property is used in advance at a predetermined portion of the building panel A at the manufacturing stage, or that it is mounted via an adhesive separately to facilitate construction on site.

As shown in FIGS. 2 (a) and 2 (b), the non-combustible joint material C is formed by laminating at least one or more refractory sheets D on a plate-like base material B. The plate-shaped base material B has fire resistance, and is a long plate-shaped material having an arbitrary thickness made of an inorganic material or a high-density synthetic resin material as a main raw material. That is, examples of the inorganic material include a calcium silicate plate, a calcium carbonate plate, a gypsum board, a pearlite cement plate,
It is made of at least one of a rock wool plate, a slate plate, an ALC plate, a PC plate, another inorganic lightweight body, an inorganic lightweight foam, and a composite board thereof.

Further, as an example of the case of using a high-density synthetic resin material, a highly incombustible phenol resin is used for about 250 to 3 parts.
It was finished at a high density of 50 kg / m ³ . Of course, flame retardants such as aluminum hydroxide powder, ammonium polyphosphate powder, calcium carbonate powder and the like can be mixed therein.

Further, the non-combustible joint material C is arbitrarily excavated, cut, or the like so as to conform to the shape of each connecting portion of the male connecting portion 4 and the female connecting portion 5 formed in a predetermined shape in each arbitrary shape. Then, the shapes are adjusted to be filled together.

By doing so, the non-combustible joint material C is located exactly at the connecting portion where the male connecting portion 4 and the female connecting portion 5 of the building panel A are engaged, and the fire protection performance is obtained. In addition, the fire resistance and fire resistance of the connecting portion, which is a weak point of the fire resistance, can be greatly improved, and the mechanical strength of the connecting portion can be improved. Moreover, even when exposed to high heat and the core material 3 of the connecting portion is thinned, the fireproof sheet D is foamed and carbonized to fill the thinned portion and form a heat insulating layer, so that the fireproof performance of the connecting portion can be improved. The fire resistance is further improved.

Furthermore, since the non-combustible joint material C is filled into the ends of the male connecting portion 4 and the female connecting portion 5, the building panel A
It is intended to prevent the core material 3 from being underfilled at the end, and also to improve the foamability and spreadability of the core material 3.

The refractory sheet D is formed by laminating one or more layers on the plate-shaped base material B separately through an adhesive (not shown) or by heat-sealing the sheet. 5-1
It is a long sheet of about 0 mm.

Further, as shown in the drawing, an extension 15 extending from the plate-like base material B is formed at one end of the refractory sheet D, and this extension 15 is made of a core material as shown in FIG. 3
By being disposed so as to protrude to the side, integration is strengthened.

The refractory sheet D is formed by laminating one or more layers on the plate-like base material B as described above, and from the male connecting portion 4 to the female connecting portion 5 near the middle of the thickness of the core material 3. , At least one layer, which is laminated together when the core material 3 is formed, and is integrated as the building panel A.
In addition, as shown in FIG.
It is a long sheet-like material of about 10 mm, which is carbonized and foamed 5 to 30 times at high temperature.
A core 18 formed by binding at least a graphite component and an inorganic fiber with a synthetic resin is sandwiched between 6 and a back skin 17.

The skin 16 and the back skin 17 are made of a non-woven fabric, and the non-woven fabric is a sheet made of polyester, nylon, boron, carbon, alumina, silicon carbide, or aramid fibers. As a material for protecting and holding D, the strength is improved, and at the same time, it functions as a protective layer for the core 18 described later.

The core 18 has a composition in which a graphite component and an inorganic fiber are bound with a phenol resin. The graphite component is, for example, graphite (expandable or non-expandable), a carbon compound such as carbon black, and carbonized when subjected to heat to form a heat insulating layer,
It prevents heat conduction. The graphite component is the core 1
8 occupies about 50-80% of the total weight ratio.

Examples of the inorganic fibers include a heat-resistant inorganic compound such as glass fiber, ceramic fiber, rock wool, and asbestos. It has the function of giving flexibility (handling). In addition, the inorganic fiber is the core 1
8 accounts for about 5% to 20% of the weight ratio.

The phenol resin functions as a binder between the graphite component and the inorganic fiber, and also has high fire resistance and fire resistance. Further, by binding the graphite component and the inorganic fiber with a synthetic resin phenolic resin, the refractory sheet D has flexibility,
Plasticity and elasticity are taken into account, and the refractory sheet D can be easily wound up or formed into a coil shape, and is very easy to handle. The phenolic resin accounts for about 10% to 3% of the weight ratio of the core 16.
It accounts for 0%.

The core portion 18 can also be mixed with aluminum hydroxide powder or phenol resin particles. Aluminum hydroxide powder size is 10 ~ 1000μ
It releases water of crystallization under high heat and cools the surroundings. The phenolic resin particles function as a cushioning material, a heat insulating material, and a refractory material, and have a size of about 10 to 1000 μm, are carbonized under high heat, and function as a skeleton of a carbonized layer.

When the surface of the building panel A is heated and exposed to a high temperature, when the given heat reaches the refractory sheet D, the refractory sheet D transfers the heat to the refractory sheet D. Has the property of causing heat to propagate in the horizontal direction along the line. Thereby, heat is prevented from reaching the rear surface side, and a very high heat resistance effect is exhibited.

Further, since the refractory sheet D is laminated near the middle (center) of the thickness of the core material 3, the same high heat resistance can be obtained by heating from the front material 1 side or the back material 2 side. Function can be exhibited. Therefore, a refractory structural test (JIS-A-
1304) works effectively and has extremely high fire resistance performance in both internal and external fires.

The both ends of the refractory sheet D to be filled in the core material 3 are connected to the extended portions 15 of the non-combustible joint material C filled in the connecting portion.
And the refractory sheet D
Are arranged from one end to the other end of the building panel A, and exhibit stable fire resistance. Further, since the refractory sheets D overlap each other at the end, the fire resistance of the end portion (joint portion) of the building panel A can be particularly improved.

[0032]

Other Embodiments The embodiment described above is an embodiment of the building panel according to the present invention. The building panel A shown in FIGS. It can also be. In particular, FIG.
FIG. 6B shows a building panel A having two layers of the refractory sheet D to be filled in the core material 3. This is an example.

FIG. 7 shows a modification of the fire-resistant sheet D.
(A) and (b) are examples in which a plurality of through holes 19 are formed in the core 18, and are examples of the refractory sheet D in which a space for the core 18 to foam with high heat is formed. Of course, it is also possible to form a building panel A in which these are combined.

[0034]

As described above, according to the architectural panel of the present invention, since the core material is an isocyanurate foam, the core material itself does not absorb water and is excellent in waterproofness. Excellent bonding strength between front and back materials. Further, since the refractory sheet is laminated near the center of the core material, the refractory sheet propagates heat in the horizontal direction, prevents heat from being transmitted to the back surface of the building panel, and improves heat resistance. Since there are many voids in the refractory sheet, it exhibits high heat insulating performance. The refractory sheet functions in the same manner whether it is heated from the front side or from the back side, exhibits high and uniform fire resistance,
A refractory structure more than a minute structure can be obtained. The portion of the core material thinned by heating is filled by foaming the refractory sheet, and high refractory performance can be maintained for a long time. At least one or more layers of a non-combustible joint material formed by laminating a refractory sheet on a plate-like base material made of an inorganic material or a high-density synthetic resin material are filled in the male and female connecting portions. According to the shape, the non-combustible joint material can be installed without gaps, and the fire resistance performance of the connection part is greatly improved. There are features and effects such as.

[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 diagram showing an example of a non-combustible joint material used in FIG.

FIG. 3 is an explanatory view showing an example of a fireproof sheet used in FIG.

FIG. 4 is an explanatory view showing an example of a connected state 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 fireproof sheet.

[Explanation of symbols]

 Reference Signs List A Building panel A1 Lower building panel A2 Upper building panel B Plate-like base material C Non-flammable joint material D Fireproof sheet E Waterproof sealing material F Fireproof packing material α Wall base β Fixture 1 Surface material 2 Back material 3 Core Material 4 Male connecting part 5 Female connecting part 6 Step 7 Male part 8 Fixing groove 9 Concave part 10 Convex ridge 11 Cover part 12 Female real part 13 Convex part 14 Concave part 15 Extension part 16 Skin 17 Back skin 18 Core part 19 Through hole

Claims (1)

[Claims] 1. A building panel in which a core material is sandwiched between a front material and a back material, wherein the front material and the back material are made of a nonflammable thin metal plate, and the core material is made of an isocyanurate foam. A male connecting portion and a female connecting portion are formed on both side edges, and at least one plate-like base material made of an inorganic material or a high-density synthetic resin material is used as a core material in a core material of the connecting portion.
At least one layer, a non-combustible base material formed by laminating a fire-resistant sheet is arranged, and further, one or more layers of a fire-resistant sheet are arranged in a core material of a building panel from the male connection part to the female connection part. A building panel comprising a core formed by binding at least a graphite component and an inorganic fiber with a synthetic resin on a skin and a back skin formed of a nonwoven fabric.