JPH10299119A - Construction panel - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a construction panel not having a deformation such as a bulge or a warp and excellent in fireproofness, fire resistance, and mechanical strength. SOLUTION: A core material 3 is sandwiched by a surface material 1 and a back face material 2 to form this construction panel A, the surface material 1 and back face material 2 are made of a nonflammable thin metal sheet, the core material 3 is made of an isocyanurate foam, a male junction 4 and a female junction 5 are formed at both edge sides of the panel A, and nonflammable members B are arranged in the core material 3 at the junctions 4, 5. One or more fire-resistant sheets C are arranged in the core material 3 of the panel A from the male junction 4 to the female junction 5, and the fire-resistant sheets C are molded with a mixture bound with at least twisted cord-like inorganic fibers and a graphite component by a synthetic resin.

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, a building panel using a nurate foam as a core material lacks fire protection performance, and has a fireproof structure (JIS-A) as a single building panel.
-1304) was difficult to obtain. In building panels using phenol foam as the core material,
Certainly, the fire resistance and fire resistance are improved, but if the phenol foam itself is water-absorbing and the rain is poor after the construction panel is installed, rainwater will penetrate inside the core of the construction panel, causing corrosion and mold There is a drawback that causes problems such as occurrence. 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. It has excellent adhesion strength to the surface material and the back surface material.Furthermore, the fire resistance and fire resistance of the isocyanurate foam are supplemented by a non-combustible member placed at the end of the core material and a fire-resistant sheet laminated near the center of the core material. Even a building panel using a nurate foam can obtain a structure (JIS-A-1304) of fire resistance of 30 minutes or more by itself,
In particular, since the fire-resistant sheet is formed by binding a string of inorganic fibers in a string shape and a graphite component with a synthetic resin, the fire-resistant sheet itself has elasticity and strength, and the fire-resistant sheet is wound into a coil. The present invention proposes an architectural panel which can be easily manufactured and handled in terms of manufacturing and transportation.

[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. It is formed integrally by the self-adhesive property of the device. Further, a male connecting portion 4 and a female connecting portion 5 are formed at the end of the building panel A, a non-combustible member B is interposed between the both connecting portions, and further from the male connecting portion 4 to the female connecting portion 5. It has a long plate shape in which one or more layers of the fireproof sheet C are arranged in the core material 3 of the building panel A.

[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,
1302), the fire prevention structure test does not have a heating test from the back side, so that the backing material 2 is made of aluminum vapor-deposited paper, asbestos paper, kraft paper, asphalt felt, metal foil (Al). , Fe, P
b, Cu), synthetic resin sheet, rubber sheet, cloth sheet,
One type of gypsum paper, aluminum hydroxide paper, glass fiber non-woven fabric, etc.
Alternatively, it may be formed by laminating two or more kinds or a sheet-like material subjected to waterproof treatment and flame retardant treatment.

The core material 3 mainly functions as a bulk material, a heat insulating material, and a fireproof material of the building panel A. The core material 3 is made of an isocyanurate resin as a main material, and if necessary, a flame retardant material (water). Aluminum oxide, calcium silicate, ammonium polyphosphate, expandable graphite, etc.), a foaming agent, and a curing agent are mixed, and heated, reacted, cured and cured to form a foam having a density of about 20 to 200 kg / cubic meter. It becomes. As a foaming agent, an alternative fluorocarbon (141b) may be used, but from the viewpoint of environmental protection, a foaming agent such as carbon dioxide or cyclopentane is used.
Non-fluorocarbon foam 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 convex 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. Formed from a female part 12 which is recessed, a convex part 13 having a tip of the female part 12 protruding from an end, and a concave part 14 provided in the back material 2 side and cut into an L-shape. It is.

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, connection and fixation of the building panels A to each other as shown in FIG. It is simple and has a strong connection.

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. A1 is fixed to the wall foundation α.
Then, the female part 12 of the upper architectural panel A2 is fitted to the male part 7 of the lower architectural panel A1, the concave part 9 to the convex part 13 and the convex part 10 to the concave part 14 from above. By doing so, 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. In the base, eaves, opening, outgoing and ingoing corners, a corresponding accessory (drainer, starter, bezel, outgoing, ingoing corner material, etc.) and a sealing material are used.

A waterproof sealing material D is inserted in the female portion 12 and a fire-resistant packing material E having waterproof and fire-resistant properties is interposed at the bottom of the concave portion 9 to prevent the joint joint from being waterproof. And to improve fire resistance. Note that the sealing material D and the fire-resistant packing material E are attached to a predetermined portion of the building panel A in advance at the manufacturing stage of the building panel A by using self-adhesive property or separately via an adhesive, It is preferred to facilitate on-site construction.

As shown in FIGS. 1 and 5, the non-combustible member B fills the male connecting portion 4 and the female connecting portion 5 of the building panel A. For example, FIGS. 4 (a) and 4 (b) It is a long plate-like object as shown in FIG. The shape is arbitrarily formed so as to conform to the shapes of the male connecting portion 4 and the female connecting portion 5 of the building panel A, and a calcium silicate plate, a high density phenol resin plate, a wool cement plate, It is made of one or more non-combustible members such as a rock wool plate and an aluminum hydroxide plate.

The non-combustible member B improves the fire resistance and fire resistance of the joint joint formed between the building panels A. The non-combustible member B is provided at the ends of the male connecting portion 4 and the female connecting portion 5. The filling prevents the core material 3 from being underfilled at the end of the building panel A, and also improves the foamability and spreadability of the core material 3.

The refractory sheet C is formed by laminating at least one layer from the male connecting portion 4 to the female connecting portion 5 near the middle of the thickness of the core material 3. And the building panel A.
Further, as shown in FIGS. 2 (a) and 2 (b), the structure is a long sheet having a total thickness of about 0.5 to 10 mm and carbonized and foamed 5 to 30 times at a high temperature. And FIG.
(A) and (b) are formed by twisting string-like inorganic fibers 15 with each other and binding a graphite component with a synthetic resin.

Examples of the string-like inorganic fibers 15 are made of an inorganic compound having high heat resistance, such as glass fiber, ceramic fiber, rock wool, and asbestos. FIGS. 3 (a) and 3 (b)
By twisting the inorganic fibers 15 together as shown in
The refractory sheet A has a function of imparting some strength, flexibility, and elasticity (handling). By doing so, as shown in FIG. 2 (b), the refractory sheet C can be wound in a coil shape, and transport, transportation, and manufacture of the building panel A can be made easy and efficient. . The inorganic fibers 15 occupy about 5% to 20% of the weight ratio of the core 16.

The fireproof performance can be enhanced by previously impregnating or dusting the string-like inorganic fibers 15 with aluminum hydroxide powder or phenol resin particles at an arbitrary ratio. That is, the size of the aluminum hydroxide powder is 10
It is of the order of 1000 μm and releases water of crystallization under high heat to cool the surroundings. Phenolic resin particles are cushioning material,
It functions as a heat insulating material and a refractory material, and the size is 10-1000
It is on the order of μ, and carbonizes under high heat and functions as a skeleton of a carbonized layer.

The graphite component, which is a composition of the refractory sheet C, includes, for example, a carbon compound such as graphite (expandable or non-expandable), carbon black, etc. To prevent heat conduction. The graphite component accounts for about 50 to 80% of the total weight ratio of the refractory sheet C.

The synthetic resin is made of, for example, a phenol resin having excellent fire resistance and fire resistance.
In addition to functioning as a binder of No. 5, the phenol resin itself has high fire resistance and fire resistance. Also, by binding the graphite component and the inorganic fibers 15 with a synthetic resin phenolic resin, the refractory sheet C is added with flexibility, plasticity and elasticity, and can be formed into a wound or coiled shape. It becomes the fireproof sheet C which is easy. The phenol resin accounts for about 10% to 30% of the weight ratio of the refractory sheet C.

In addition, the refractory sheet C may be mixed with aluminum hydroxide powder or phenol resin particles at an arbitrary ratio. Aluminum hydroxide powder size is 10
１０００1000 μm, which releases water of crystallization under high heat and cools the surroundings. The phenol resin particles function as cushioning material, heat insulating material, and refractory material, and the size is 10 to 10
It is about 00μ, and carbonizes under high heat and functions 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 C, the refractory sheet C transfers the heat to the refractory sheet C. 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.

Furthermore, since the refractory sheet C 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 of the building.

[0026]

Other Embodiments The embodiment of the construction panel A according to the present invention has been described above. The construction panel A shown in FIGS. , A building panel A as shown in FIG.

FIG. 6 is an explanatory view of another embodiment of the refractory sheet C. FIG. 6 (a) shows that the skin 16 and the back skin 17 made of a nonwoven fabric are laminated on the front and back surfaces of the refractory sheet C. Things. The skin 16 and the back skin 17 are made of a non-woven fabric. The non-woven fabric is a sheet made of polyester-based, nylon-based, boron-based, carbon-based, alumina-based, silicon carbide-based, or aramid-based fiber. In addition, the strength is improved as a holding material. In addition, the lamination of the skin 16 and the back skin 17 and the refractory sheet C utilizes the self-adhesive property of the synthetic resin constituting the refractory sheet C or separate adhesive (not shown).
Are laminated integrally through the intermediary. FIG. 6 (b)
Is an example of a refractory sheet C in which a plurality of through holes 18 are formed.

FIG. 7 is an explanatory view showing another example of the inorganic fibers 15 constituting the refractory sheet C. FIG.
FIG. 7 shows an example in which micropores 19 are formed in the inorganic fiber 15.
FIG. 7B shows an example in which a hollow hole 20 is formed in the inorganic fiber 15, FIG.
(C) is a raised part 21 in which the middle of the inorganic fiber 15 is fluffed.
This is an example of the inorganic fiber 15 formed respectively.

FIGS. 8 and 9 are sectional views showing other examples of the building panel A. FIG. 8A shows both ends of the fireproof sheet C (the male connecting portion 4 and the female connecting portion 5 side). This is an example of a building panel A in which is double-folded to have a thickness to improve the fire resistance of a connecting portion which is a weak point of the fire resistance.

FIG. 8 (b) shows that the fire-resistant sheet C is laminated on the surface material 1 side or the back surface material 2 side of the core material 3 or at least one more layer (only the surface material 1 side is shown in the figure). It is an example of the building panel A aiming at improvement of fire resistance performance.

FIG. 8C shows a fireproof sheet C laminated near the convex 10 of the male connecting portion 4 and near the cover 11 of the female connecting portion 5 to form a connecting portion which is a weak point of fire resistance. 1 is an example of a building panel A having improved fire resistance.

FIG. 9A shows that the shape of the non-combustible member B is formed by extrusion molding so as to conform to the shapes of the male connecting portion 4 and the female connecting portion 5, and the fire resistance of the connecting portion is shown. 1 is an example of a building panel A in which is improved.

FIGS. 9B and 9C show examples of the building panel A in which the manner of inserting the refractory sheet C into the core material 3 is modified. 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. The refractory sheet functions in the same manner regardless of whether it is heated from the front side or from the back side, exhibits high and uniform fire resistance performance, and can obtain a fire resistant structure certification of 30 minutes or more. 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.
Since the inorganic fibers that make up the fire-resistant sheet are formed from twisted cord-like inorganic fibers, the fire-resistant sheet has a certain degree of strength, flexibility, and elasticity (handling). Can be wound into a shape,
Transportation, transportation and manufacturing of building panels are also easier and more efficient. 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 view showing an example of a refractory sheet used in FIG.

FIG. 3 is an explanatory view showing an example of an inorganic fiber constituting a refractory sheet.

FIG. 4 is an explanatory view showing an example of a non-combustible member used in FIG.

FIG. 5 is an explanatory view showing an example of a connected state of the building panel according to the present invention.

FIG. 6 is an explanatory view showing another example of the fireproof sheet.

FIG. 7 is an explanatory diagram showing another example of an inorganic fiber.

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

FIG. 9 is an explanatory view showing another example of the building panel according to the present invention.

[Explanation of symbols]

 Reference Signs List A Building panel A1 Building panel A2 Building panel B Non-combustible member C Fireproof sheet D Sealing material E Packing material α Wall base β Fixture 1 Surface material 2 Back surface material 3 Core material 4 Male connection part 5 Female connection part 6 Step 7 Male part 8 Fixing groove 9 Concave part 10 Convex 11 Cover part 12 Female part 13 Convex part 14 Concave 15 Inorganic fiber 16 Skin 17 Back skin 18 Through hole 19 Micro hole 20 Hollow hole 21 Raised part

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 connection portion and a female connection portion are formed at both edges, a non-combustible member is disposed in the core material of the connection portion, and a core material of a building panel extends from the male connection portion to the female connection portion. One or more layers of a fire-resistant sheet are disposed therein, and the fire-resistant sheet is formed by binding at least a string of inorganic fibers and binding a graphite component with a synthetic resin. Building panels.