JPH0972022A - Fireproof panel - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a fireproof panel with heat insulation, sound insulation, fire resistance, beautiful appearance and long duration adhesive strength, which is in a sandwiched structure with building and constructive exteriors, especially male and female connections. SOLUTION: For a fireproof panel 1, a core material 6 formed of synthetic resin is sandwiched between a surface material 2 formed by a long metal thin plate and a backing material 5 and a male connection 11 and a female connection 16 are provided on the side wall. Fireproof material 8 formed of at least one type of organic granule and inorganic granule with fireproof performance is added to 100wt.pts synthetic resin component so that the density of the core material 6 itself can be 80-400kg/m<3> . The surface material 2 has linear stripes 4 and 0.1-2mm deep rough designs, as required, as well as a vent forming member 9 integrally laid between the back 2a of the surface material 2 and the core material 6.

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.
The present invention relates to a fire-resistant panel that is free from deformation such as peeling and has excellent water resistance and mechanical strength.

[0002]

2. Description of the Related Art In general, many composite panels in which a core material made of a synthetic resin foam is sandwiched between a front material made of a thin metal plate material and a back material, have been invented, devised, and put on the market.

[0003]

However, in a composite panel having such a structure, the surface material and the back material are deformed in greatly different directions by being pulled toward the heating side due to a difference in heat conduction under high heat. As a result, a gap is formed in the connecting portion, from which heat and flame leak to the opposite side, and J
There was a drawback that the test for the refractory structure of IS-A-1304 for 1 hour could not be passed. Furthermore, this type of composite panel, particularly a composite panel manufactured by discharging a core material in a liquid state, a granular state, or the like, has the following disadvantages.

That is, when a resol-type phenol foam is used as a core material, the core material shrinks as a result of evaporation of free water, condensed water, and unreacted water with time by solar heat. Moreover, it contains about 12 to 20% of water, and this water deteriorates the coating film and the foam itself with time. The metal surface material expands due to solar heat, while the core material lacks elasticity and is brittle than other plastic foams, so the core material cannot follow the deformation of the surface material, causing cohesive failure and the surface material sticking. Impairs appearance. Since the core material is water-absorbing, it is necessary to sufficiently enhance waterproofness when constructing the composite panel. The adhesion strength between the surface material and the back surface material and the core material is weak, and the boundary portion of the core material at the contact portion between the surface material and the back surface material and the core material peels off by a slight impact.
Excess gas (including water) in the core material expands in the summer, causing the surface material and the core material to be separated and causing cohesive failure, resulting in an uneven cosmetic surface and poor aesthetics. In terms of fire resistance, the connecting part between the composite panels is the weakest point, and a special board must be integrated in that part. Resol-type phenol foam contains about 20% of water in the tissue, so that it is evaporated by heat from the outside, resulting in dimensional change of phenol foam and lacking long-term dimensional stability. There were disadvantages such as.

[0005]

In order to eliminate such drawbacks, the present invention provides the surface material itself with an anchor structure and the core material itself with a dimensional stability enhancing structure, as well as the adhesiveness and elasticity of the synthetic resin itself. It is possible to pass the JIS-A-1304 fireproof structure 1 hour test, and reduce the generation of surplus gas by modifying the core material itself and adding inorganic powder particles. By forming a concavo-convex pattern of about 0.1 to 2 mm in a directional or non-directional manner, and by interposing a vent hole forming member integrally between the back surface of the core material and the surface material, the synergistic effect of the concavo-convex pattern and the space above The gas pressure in the core material is reduced to about 1/20 to 1/40 by the effect, and the mechanical strength is improved by the formation of the uneven pattern, and the deterioration of the coating film by the acid catalyst is minimized. Suppress and surface materials by these synergistic effects Prevention and expansion ratio of the breaking of the adhesive strength and the boundary portion due to buffering effect by insufflation port forming member or the like between the core and proposes a refractory panels also greatly improved thermal insulation.

[0006]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an exploded perspective view of a fireproof panel according to the present invention. FIG. 1 is a perspective view showing a typical example of a fireproof panel according to the present invention.
Is a fireproof panel, 2 is a surface material, 4 is a filament, 5 is a back surface material, 6
Is a synthetic resin foam layer 7, a refractory material 8 mixed in the synthetic resin foam layer 7, and a vent hole forming member 9 disposed integrally at the boundary between the back surface 2a of the surface material 2 and the core material 6. The male board 11 and the female board 16 are integrally formed with the inorganic board 10 interposed at predetermined positions.

Explaining further, as the surface material 2 and the back surface material 5, thin metal plates such as iron, aluminum, copper, stainless steel, titanium, aluminum / zinc alloy plated steel plate, enamel steel plate, clad steel plate, laminated steel plate (PVC steel plate, etc.) are used. ), Sandwich steel plates (damping steel plates, etc.), galvalume steel plates, etc. (including, of course, colored metal plates coated with these in various colors) formed into various shapes by roll molding, press molding, extrusion molding, etc. Or, as an inorganic material, or as the backing material 5 only, 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,
Alternatively, it is made of a laminate of two or more kinds, or is made of one kind such as a sheet subjected to waterproof treatment and flame retardant treatment.

As shown in FIG. 2, the surface material 2 has a plurality of filaments 4 on the decorative surface portion 3 in one direction of the decorative surface portion 3, for example, an arbitrary pitch P in the longitudinal direction and a dimension d, and the back surface of the surface material 2. Two
It is made to project from a in either the upper direction, the lower direction, or both directions. Mainly, the distortion of the decorative surface portion 3 is improved, the mechanical strength is improved, and the design (aesthetic) is integrated with the core material 6 and the surface material 2. This is effective for achieving the anchor effect, suppressing the dimensional change of the core material 6, and improving the adhesive effect between the surface material 2 and the core material 6.

More specifically, the filaments 4 may be straight or curved, for example, they are formed parallel to the longitudinal direction of the decorative surface portion 3 as shown in FIG. 2, and the pitch P is about 10-5.
00 mm, the dimension d is about 0.5 to 10 mm, and the cross section of the decorative joint 4a is structured as shown in FIGS. 3 (a) to 3 (i).

That is, in FIG. 3 (a), the line strip 4 is formed by folding back at 180 ° and forming the makeup joint 4a like a straight line.
(B) is a line 4 in which the end 4b of the line 4 is formed in a ring shape, (c), (d) is a line 4 in which the decorative joint 4a has a small or large V-shaped cross section, (e) The figure shows a line 4 having a makeup joint 4a with an interval ΔW, and (f) to (h) show a line 4 having a gas vent hole 4c formed in the middle of the line 4, and the shape of the gas vent hole 4c is also a circle. , A polygonal shape such as an ellipse, a corner, etc. (i) The figure shows a line 4 having a water-absorbent resin thin layer 4d formed on the back side of the line 4.
It is.

If necessary, the decorative surface portion 3 is formed as shown in FIG.
Embossing (concavo-convex) processing of various arbitrary patterns as shown in (a) to (c) is performed, and the depth thereof is about 0.1.
At about 2 mm, it is either directional or non-directional.
(A) to (c) and the uneven pattern 2b as shown in FIG.
To improve the adhesive strength between the surface material 2 and the core material 6, the mechanical strength of the surface material 2 itself and the surface design, and to form the ventilation hole forming member 9 and the uneven pattern 2b on the back surface 2a of the surface material 2. By forming the void 2c in the contact portion, a synergistic effect such as promotion of degassing can be obtained.

The core material 6 forms a carbon skeleton under high heat, and usually has elasticity, adhesiveness, heat insulation, heat resistance, and dimensional stability, is not brittle like phenol foam, and is like an acid catalyst. The synthetic resin foam layer 7 that does not deteriorate the performance of the coating film, and the refractory material 8 dispersed and mixed in the synthetic resin foam layer 7, for example, the refractory material 8 made of inorganic powder, and the like. Of about 80 to 400 kg / m ³ and mainly functions as a fireproof material, a fireproof material, a core material, a heat insulating material, an adhesive, a raising material, a dimension stabilizing material, a weight reducing material, and a reinforcing material.

Specific examples of the synthetic resin foamed layer 7 include a resin for a resol type phenolic foam, a polyisocyanurate foam alone, a foam mainly composed of a resol type phenolic resin and polyisocyanurate, or an ammonium polyphosphate. , And other foams to which flame retardants are added, and mainly functions as a binder, an adhesive, a heat insulating material, a raising material, a reinforcing material, a fire resistant material under high heat, a cushioning material, and a waterproof material.

The refractory material 8 is mixed in the synthetic resin foam layer 7, bound by the synthetic resin foam layer 7 and suppressing the carbonization rate when the synthetic resin foam layer 7 is carbonized under high heat. It also functions as a heat insulating material and a non-combustible material under high heat. Specifically, calcium carbonate, calcium silicate, alumina powder, coated aluminum hydroxide, shirasu balloon, titanium powder, unexpanded expandable graphite that expands about 3 to 30 times under high heat, expanded graphite, Zeolite, carbon black, graphite (including foamability), chaff, pearlite grain powder,
Talc stone, phenol resin, for example, spherical, size 0.05 ~ 1.5 mmφ, bulk density 0.06 ~ 0.8
A g / cm ^3, heat FuTorugata or granules obtained by firing this, aluminum hydroxide beads particle size of about 10~1000μ those coated with resin, is made of one and the like.

The amount added to the synthetic resin foam layer 7 varies depending on the purpose, but at least the synthetic resin foam layer 7 itself is a weight that functions as a sufficient binder. For example, the overall density of the core material 6 is 80 to An amount of 400 kg / m ³ is added. Of course, when the refractory material 8 is surface-treated with a surface active agent or the like, the addition amount can be made close to that of the close-packed structure.

The vent hole forming member 9 is mainly composed of the synthetic resin foam layer 7.
In order to remove the unreacted components, unnecessary gas, etc. of the outer surface of the surface material 2 from the back surface 2a of the surface material 2 and the core material 6, a buffer is provided to suppress the deformation of the surface material 2 and the separation of the surface material 2 and the core material 6. The layer, the anchor material, the formation of the vent hole and the unevenness pattern 2b of the surface material 2 serve to exert a high degassing effect by the synergistic effect.

Explaining further, regardless of the material, the vent hole forming member 9 is made by twisting fibers into a string or the core material 6.
Ingredients present in the material are substances that are dissolved or contracted by heat of reaction, etc., such as starch, ethylene glycol, paraffin, vegetable fiber, animal fiber, etc. is there. As a typical structure of the distribution, as shown in FIGS. 6A to 6C, one layer is formed at an arbitrary pitch in the longitudinal direction of the fireproof panel 1 or in a direction orthogonal to the boundary portion between the surface material 2 and the core material 6. Alternatively, as shown in FIG. 6C, it is formed of a plurality of layers and integrally fixed to these constituent materials. In the figure, the case where the back surface of the surface material 2 and the vent hole forming member 9 are integrally fixed to each other in a point or line shape by the adhesive agent B is shown, but they may be fixed by the self-adhesiveness of the synthetic resin foam layer 7. It is a thing.

Further, the ventilation hole forming member 9 is laid on the back surface 2a of the surface material 2 at a predetermined pitch, for example, a pitch of about 10 to 200 mm so as to be parallel or orthogonal to the longitudinal direction of the fireproof panel 1, and the thickness thereof. It is obtained by twisting a large number of fibers at about 0.5 to 10 mmφ, or by further knitting the fibers.

As shown in FIG. 1, the inorganic board 10 is a plate member having a rectangular shape corresponding to the sectional shapes of the side surfaces of the male type connecting portion 11 and the female type connecting portion 16 and having a length of 1 to 2 m with one end inclined. Mainly used for strengthening the fire resistance of the connecting part α shown in FIG. 7, and for example, calcium silicate board, calcium carbonate board, gypsum board, perlite cement board, rock wool board, slate board, ALC board, PC board, 1 of other inorganic lightweight bodies, inorganic lightweight foams, or composite plates of these
One or more kinds or super high density resin (high density phenol foam or the like) is integrally interposed in the male type connecting portion 11 and the female type connecting portion 16 of the fireproof panel 1.

The male connecting portion 11 is an inorganic board 10, a fixture receiving groove 12, a guide and an upper protrusion 1 for strengthening the engaging force.
3 and a fitting insertion concave line 14 into which a main convex line 19 described later is inserted are side end portions integrally fixed by the synthetic resin foam layer 7. More specifically, the cover portion 17 of the female connecting portion 16
Of the surface material 2 does not project from the decorative surface portion 3 of the surface material 2 and is formed so as to be accommodated substantially flush with each other. If necessary, a fireproof packing material 14a is formed on the fitting / recessed ridge 14, and the fireproof packing material 14a is preferably an inorganic material such as rock wool felt or ceramic wool.

The female type connecting portion 16 is composed of an inorganic board 10 as a fireproof reinforcing material, an insertion groove 18 for fitting with the upper projection 13, and a main protruding piece 19 for being fitted in the fitting insertion groove 14. In addition, the packing material 1 is provided on the cover portion 17 if necessary.
7a is formed, and the packing material 17a is generally commercially available such as polyvinyl chloride type, chloroprene type, chlorosulfonated polyethylene type, ethylene propylene type, asphalt impregnated polyurethane type, EPM, EPDM, etc. It is useful mainly as a function of a waterproof material, an airtight material, and the like.

Example 1 Polyisocyanurate foam (a) 60 parts by weight of polyol (b) 170 parts by weight of polyisocyanate (MDI) (c) 40 parts by weight of foaming agent (alternative CFC 141b) (d) foam stabilizer Agent (Toray Silicon 193H) 2 parts by weight (e) Catalyst (trade name: DABCO) 5 parts by weight (f) Calcium carbonate (200 mesh) 50 parts by weight (g) Aluminum hydroxide (coating coating) 150 parts by weight (h) Vent hole forming member 9 10 parts by weight However, the vent hole forming member 9 is a string-like material formed by twisting a cotton thread to a diameter of about 5 mmφ, and the lengthwise direction is 600 mm width (effective width of the decorative surface portion 3 of the fireproof panel 1) at 60 mm intervals. Was laid in parallel with and fixed as shown in FIG. Further, (g) has a particle size of about 50 to 500 μm, and this was coated with a film thickness of starch or the like by using a spray gun, dobbing, or the like to obtain a minimum amount of resin.

(Example 2) In the case of phenol foam (a) Resol type phenol resin 100 parts by weight (nonvolatile content 80%, viscosity 2000 cps / 20 ° C) (b) curing agent 20 parts by weight (65% paratoluenesulfonic acid aqueous solution) (C) Blowing agent 13 parts by weight (Alternative CFC 141b) (d) Additive 5 parts by weight (silicone, ammonium polyphosphate, etc.) (e) Calcium carbonate (200 mesh) 50 parts by weight (f) Unexpanded expandable graphite (While it is foamable) 50 parts by weight (g) Aluminum hydroxide 100 parts by weight (h) Vent forming member 9 Same as in Example 1, except that (h) has the structure shown in FIG. 6 (c).

(Comparative Example) In the case of phenol foam (a) 100 parts by weight of resol type phenol resin (nonvolatile content 80%, viscosity 2000 cps / 20 ° C.) (b) curing agent 20 parts by weight (65% paratoluenesulfonic acid aqueous solution) ( c) 13 parts by weight of foaming agent (alternative CFC 141b) (d) 5 parts by weight of additive (silicone, ammonium polyphosphate, etc.) In addition, the structure is such that the vent hole forming member 9 is not embedded and the surface material 2 is flat. It is a fireproof panel 1 having a surface.

Further, in Examples 1 and 2, the front surface material 2 and the back surface material 5 are 0.5 mm thick colored steel plates, and the raw materials of the synthetic resin foam layer 7 are mixed, reacted and foamed to have a density of 150.
A fireproof panel 1 having a thickness of 50 mm, which was set to kg / m ³ (Example 1) and 180 kg / m ³ (Example 2), was manufactured. The comparative example is a sandwich panel having a density of 100 kg / m ³ and a thickness of 50 mm. In addition, the inorganic board 10
Is a calcium silicate plate (incombustible No. 1061) with a thickness of 10
mm, widths are 30 mm and 40 mm, and plate bodies having a length of 1800 mm are connected to each other. Furthermore, the line 4 is d
= 5 mm, pitch P = 200 mm, and the cross-sectional shape of the filament is shown in FIG.

Therefore, the fireproof panel 1 having the basic structure as shown in FIG. 1 was constructed from Examples 1 to Comparative Example. Next, with respect to the fireproof panel 1, a test according to JIS-A-1321, a test according to JIS-A-1301, and a test according to J
Test by IS-A-1304, is strength at 10% strain, is heated by a floodlight, and the surface temperature is raised to 85 to 95 ° C. and maintained for 3 days. The pressure sensor is AB type 50PSI manufactured by Kronell Co., Ltd., and the conduit diameter is 1.5 mmφ. The gas pressure in the comparative example was 0.3 kg / cm ² for several hours after production at room temperature, and after heating, it became as shown in Table 1 below. Is JIS-A-161
Perform according to 3 (The size of the test piece is 50 mm x 5
0 mm). Is 90 ℃ to -30 ℃, the humidity is the same as the outside air,
It was done for 12 days and 60 days.

The results are shown in Table 1 below.

[Table 1]

In the comparative example, the cause of the failure is that the back surface temperature is 260 ° C. or higher.

In this case, there is no escape path for the gas when the phenol resin is dispersed, and a gap is created between the surface material 2, the back surface material 5 and the core material 6, and a flame leaks from this portion to the back surface or the core material 6 It is due to the destruction of the organization. further,
Example 1 was a fire-resistant panel 1 which was excellent in adhesive strength, elasticity and strength due to the polyisocyanurate foam, and which did not have a fire resistance reinforcement by an additive and the polyisocyanurate foam wetted well and did not absorb water. The fireproof panel 1 of Example 2 completely overcomes the brittleness of the phenol foam.

In the comparative example, the reaction of the core material 6 and the escape of excess gas at the time of foaming do not roughen the foamed structure at the boundary between the surface material 2 and the core material 6, and the condensed water and the acid curing agent form a foamed structure. It was because it had an adverse effect.

Further, in Examples 1 and 2, the filament 4 is integrated with the core material 6, and the degassing action and the buffer layer at the boundary portion between the surface material 2 and the core material 6 are formed. The material of the layer 7 was sufficiently exhibited. Further, as a result of the heat cycle test, the adhesive strengths of Examples 1 and 2 are hardly reduced, while the comparative example tends to be significantly deteriorated, which is the peeling of the surface material 2 and the core material 6. It is directly connected to.

What has been described above is only one embodiment of the fireproof panel according to the present invention. As shown in FIG.
It is also possible to form the gas vent hole 20 in the back surface material 5 at an arbitrary depth. Furthermore, FIGS. 9 (a) to 9 (f) to 13 (a)
It is also possible to form the refractory panel 1 as shown in FIGS. In particular, FIGS. 12 (b) and 12 (c) show the fireproof panel 1 in which the dimension d of the filament 4 is provided with a size difference, and FIGS. 12 (d) and 12 (e) show the filament 4 of the decorative surface portion 3 of the surface material 2. 13 (a) to 13 (c) is a fireproof panel 1 in which the vent hole forming member 9 is not provided between the filaments 4.
In addition, in FIGS. 13A to 13C, there was no problem in the adhesive force between the surface material 2 and the core material 6, and the data had practical durability in terms of fire resistance and other various endurances.

[0033]

As described above, according to the fireproof panel of the present invention, unnecessary gas generated during the reaction is significantly reduced in the case of resol-type phenol foam, polyisocyanurate foam, etc., and is leaked to the outside through the vent hole forming member. Therefore, the adhesive strength between the surface material, the back surface material and the core material is not lowered for a long period of time. The fire-resistant weakness of polyisocinurate foam can be strengthened by addition of a fire-resistant material such as aluminum hydroxide beads, graphite inorganic powder, etc., and has the performance of passing the fire resistance test. By the synergistic effect of the concavo-convex pattern of the vent hole forming member and the surface material, gas swelling is removed, peeling of the surface material and the core material is prevented, and a beautiful appearance can be maintained for a long time. Exhaust of water is released to the outside by degassing, so that the coating film on the back surface of the surface material is not destroyed. Despite increasing the core material density to 80 to 400 kg / m ³ , peeling and swelling between the surface material and the core material can be prevented. When the ventilation hole forming member is planted between the surface material and the plastic foam, the gas pressure is further reduced, and various problems can be greatly improved. The fire resistance and fire resistance can be more surely improved by adding the resol type phenol resin powder. In the production of various foams, since the refractory material is fine, it can be mixed very easily and a desired foam can be formed. The filaments greatly improved the aesthetics of the decorative surface part, strength reinforcement, and the adhesive strength (anchor effect) with the core material, and eliminated the deformation of the decorative surface part. There are features and effects such as.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of a fireproof panel according to the present invention.

FIG. 2 is a perspective view showing an example of a surface material which is also one of the main parts of the fireproof panel according to the present invention.

FIG. 3 is an explanatory view showing, in an enlarged manner, an example of a linear strip which is a main part of the surface material according to the present invention.

FIG. 4 is a plan view showing an embodiment of a decorative surface portion of the fireproof panel according to the present invention.

FIG. 5 is an explanatory view showing an enlarged main part of the fireproof panel according to the present invention.

FIG. 6 is an explanatory view showing another embodiment of the fireproof panel according to the present invention.

FIG. 7 is an explanatory view showing an example of a connecting portion of the fireproof panel according to the present invention.

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

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

FIG. 10 is an explanatory view showing another embodiment of the fireproof panel according to the present invention.

FIG. 11 is an explanatory view showing another embodiment of the fireproof panel according to the present invention.

FIG. 12 is an explanatory view showing another embodiment of the fireproof panel according to the present invention.

FIG. 13 is an explanatory view showing another embodiment of the fireproof panel according to the present invention.

[Explanation of symbols]

 B Adhesive material α Connection part d Dimension P Pitch 1 Fireproof panel 2 Surface material 2a Back surface 2b Concavo-convex pattern 2c Void 3 Decorative surface part 4 Lines 4a Decorative joint 4b End 4c Gas vent hole 4d Water absorbing resin thin layer 5 Back material 6 Core material 7 Synthetic resin foam layer 8 Refractory material 9 Vent forming member 10 Inorganic board 11 Male type connection part 12 Fixture storage groove 13 Upper protrusion 14 Fitting concave groove 14a Fireproof packing material 15 Step part 16 Female type connection part 17 Cover part 17a Packing Material 18 Insertion groove 19 Main ridge 20 Gas vent hole

Claims (3)

[Claims] 1. A core material is formed between a front surface material and a back surface material made of a long plate material, and male connecting parts are provided on both side surfaces in the longitudinal direction thereof.
In a long fireproof panel provided with a female type connecting portion, a plurality of filaments having a dimension d = 0.5 to 20 mm are formed on at least the decorative surface portion of the surface material along the longitudinal direction of the decorative surface portion. In addition, the core material is an organic powder granule that exhibits fire resistance in a synthetic resin foam layer that forms a carbon skeleton under high heat,
The density of the core material itself is about 80 to 400 k based on 100 parts by weight of the synthetic resin component of the refractory material composed of one or more kinds of inorganic powder granules.
A fire-resistant panel, characterized in that an amount of g / m ³ is blended, and a vent hole forming member is integrally interposed at least at the boundary between the back surface of the surface material and the core material. 2. The fire-resistant panel according to claim 1, wherein an uneven pattern having a depth of about 0.1 to 2 mm is provided at least on the decorative surface between the filaments of the surface material. 3. The fireproof panel according to claim 1, wherein a long inorganic board having a short width is provided along the side wall on at least the side surfaces of the male connecting portion and the female connecting portion.