JPH0960154A - Fire resistant panel - Google Patents

Abstract

PROBLEM TO BE SOLVED: To use a fire resistant panel as a material of internal wall, external wall, roof, floor, partition or fireproof door, etc., in a building or a structure. SOLUTION: In a long fire resistant panel 1 in which a core material 4 is formed between the front face material 2 and the rear feace material 3 made of a long board and a male connection part 11 and a female connection part 18 are provided at both longitudinal side faces respectively and further, inorganic boards 17 are interposed in the middle thereof, an adhesive thin layer 8 having a chemicals-resistant and non-water absorptive property is provided at least at a part of the rear face 2a of the decoration face of the front face material 2. A string-form and napping-form anchor material 9 is interposed as a unit between the adhesive thin layer 8 and the core material 4. A fire resistant material 6 made of one or more kinds of organic powdery materials and inorganic powdery materials, is added to 100 pts.wt. of a synthetic resin ingredient so that the density of the core material 4 itself gets to 80-300kg/m<3> . An air passage-forming member 10 is provided as a unit between the anchor material 9 and the core material 4.

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 invention panels have been invented and put on the market, with a composite panel in which a thin plate-shaped front material and a back material sandwich a core material made of synthetic resin foam.

[0003]

However, in a fireproof panel having such a structure, under high heat, the surface material and the back surface material are deformed in different directions by being pulled toward the heating side due to the difference in heat conduction, and this deformation is caused. Due to this, a gap is created in the connecting part, and heat and flame leak from this part to the opposite side,
There was a defect that it could not pass the JIS-A-1304 fireproof structure for 1 hour. Further, this type of composite panel, particularly the composite panel manufactured by discharging the core material in a liquid form, granular form, or the like, has the following drawbacks. That is, when the resol type phenol foam is used as the core material,
The core material shrinks as a whole due to the solar heat evaporating free water, scale water, and unreacted hydrology over time. Moreover, this component contains about 12 to 20%, and this water content causes the coating film to
Deteriorate the foam itself. The surface material made of metal expands due to solar heat, whereas the core material lacks elasticity compared to other plastic foams, so the core material cannot follow the deformation of the surface material, causing cohesive failure, and the surface material becomes sticky. Spoil the appearance. Since the core material absorbs water, it is necessary to sufficiently enhance waterproofness during panel construction. The adhesive strength between the surface material and the back surface material and the core material is weak, and the boundary portion of the core material in the bonded portion between the surface material and the back surface material and the core material is peeled off by a small 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 cohesively destroyed.
Since the resole type phenol resin contains about 20% of water in the tissue, it is disadvantageous in that it is evaporated by heat from the outside, resulting in dimensional change of phenol foam and destruction of foam itself.

[0004]

In order to eliminate such drawbacks, the present invention applies a chemical resistant / non-water-absorbing adhesive thin layer to the rear surface of a decorative surface of a surface material. An anchor material of string-shaped or brushed material is integrally interposed between the core material and the core material, and a refractory material made of one or more organic and inorganic powder particles is added to the core material for flame retardancy and dimensional stability. The density to 80-300
JIS-A-1304 fire resistant structure 1 for kg / m ³ rank
Can pass the time test, and release excess gas to the outside by the vent hole forming member to prevent the destruction of the boundary portion between the surface material and the core material and reduce the occurrence of distortion of the surface material decorative surface, and We propose a fire-resistant panel with greatly improved foaming ratio and heat insulation of synthetic resin.

[0005]

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 typical example of a fireproof panel according to the present invention, and FIG. 2 is a connecting portion α.
FIG. 3 is an enlarged cross-sectional view showing a main part, wherein 1 is a fire-resistant panel, 2 is a surface material, 3 is a back surface material, 4 is a core material, and a synthetic resin foam layer 5 and this synthetic resin foam. The refractory material 6 mixed in the layer 5, the adhesive thin layer 8 applied on the primer layer 7 on the back surface of the surface material 2, the anchor material 9 integrally adhered to the adhesive thin layer 8, and the surface material 2. The vent hole forming member 10 integrally interposed at the boundary between the anchor members 9 and the inorganic board 17 interposed at predetermined positions of the male connecting portion 11 and the female connecting portion 18 are integrally formed. The primer layer 7 and the adhesive thin layer 8 are omitted in FIG.

Further, as the surface material 2 and the back surface material 3, 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.), Sandwich steel plates (damping steel plates, etc.), Galvalume steel plates, etc. (Of course, these include color metal plates coated in various colors)
One of the above is formed into various shapes by roll molding, press molding, extrusion molding, or the inorganic material, or the backing material 3 when the material is different from the surface material 2 is 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 non-woven cloth, etc., laminated one or more kinds, or waterproofed , A flame-retarded sheet or the like.

The core material 4 has at least a high degree of heat and partially forms a carbon skeleton, and usually has elasticity, adhesiveness, heat insulation,
A synthetic resin foam layer 5 which has heat resistance and dimensional stability, is not brittle like phenol foam, and does not deteriorate the performance of the coating film like an acid catalyst, and this synthetic resin foam layer 5.
It is composed of a refractory material 6 dispersed and mixed therein, and has a density of about 80 to 300 kg / m ³ , and mainly functions as a refractory material, a core material, a heat insulating material, an adhesive, a dimensional stabilizer, and a reinforcing agent. It is a thing.

Specific examples of the synthetic resin foam layer 5 include a polyisocyanurate foam alone or a foam obtained by adding ammonium polyphosphate or other flame retardant thereto, and is mainly used as a binder, an adhesive, a heat insulating material, and a raising material. It functions as a reinforcing material, a refractory material for high heat, a cushioning agent, and a waterproofing agent. Of course, phenol-modified urethane foam, urea foam, urea foam, flame-retardant foam of polyurethane foam, melamine foam, phenol foam and the like can also be used.

The refractory material 6 is a synthetic resin foam layer 5 in a normal state.
When the synthetic resin foam layer 5 is bound to the synthetic resin foam layer 5 and carbonizes the synthetic resin foam layer 5 under high heat, it suppresses the carbonization rate and also functions as a heat insulating material and a non-combustible material under high heat. To do. Specifically, calcium carbonate, calcium silicate, alumina powder, coated aluminum hydroxide, shirasu balloon, titanium powder, unexpanded expandable graphite, expanded graphite, zeolite, unexpanded expandable graphite, carbon black, Rice husk, pearlite powder, talc stone, or resol-type phenol foam resin particles having a size of 0.05 to 1.5 mmφ and a bulk density of 0.0
It is 6 to 0.8 g / cm ³ and is made of one type of heat infusible type or granular material obtained by firing this.

The addition amount to the synthetic resin foam layer 5 varies depending on the purpose, but at least the synthetic resin foam layer 5 itself is a weight that functions as a sufficient binder, and for example, the overall density of the core material 4 is 80 to. It is a substance added in an amount of 300 kg / m ³ . Of course, when the refractory material 6 is surface-treated with a surface active agent or the like, the amount of the refractory material 6 added can be a finely packed structure.

The primer layer 7 is a service coat applied to the back surface of the surface material 2 and has functions such as rust prevention. It may be unnecessary depending on other materials such as stainless steel, aluminum, and galvalume steel plate.

The thin adhesive layer 8 is applied to the back surface of the surface material 2 (primer layer 7) and is made of a conductive resin material in an amount of about 1: 1.
The anchor material 9 is fixed by forming it to a film thickness of 0 to 50 μm. The material is epoxy resin, polyester resin, urethane resin, or the like.

The anchor material 9 is made of one kind of glass fiber, cotton, expansive graphite, non-expandable graphite, synthetic fiber, metal needles, etc., and mainly from the surface material 2 to the core material 4 due to the degassing base preparation and the anchor effect. To prevent peeling. In addition, the anchor material 9 is a long fiber shape, a single fiber shape,
One kind of lump, curl, etc. is dispersed at an arbitrary density. At the time of flocking, the length is about 10-200μ,
The thickness is about 5 to 50 μm.

The vent hole forming member 10 mainly releases unreacted components, surplus gas components, etc. of the synthetic resin foam layer 5 to the outside of the core material 4 at about 1/5 to 1 / 20th, and shock resistance. It also serves as a cushioning material against changes in volume, expansion and contraction due to heat, and the like. Specific examples of the vent hole forming member 10 include fibers in the form of a string, or substances that are dissolved or contracted by the components present in the core material 4,
For example, a filamentous material containing starch, ethylene glycol, paraffin, vegetable fiber, animal fiber or the like as a main component is formed into a cotton shape, a net shape or the like. As a typical structure, as shown in FIG. 3, its distribution is one layer at the boundary portion of the surface material 2 and the core material 4 in the longitudinal direction of the fire-resistant panel 1 or in an orthogonal direction at an arbitrary pitch, or not shown. It is laminated in layers and fixed integrally with these constituent materials.

The male connecting portion 11 has an inorganic board 17, a fixture receiving groove 12, a guide and an upper protrusion 1 for enhancing the engaging force.
3 and a fitting insertion concave line 14 into which a main convex line 21 described later is inserted and fixed integrally by the synthetic resin foam layer 5, a fireproof and waterproof packing material 16, and a cover of the female connecting portion 18. The portion 19 does not protrude from the decorative surface 20 and is configured to have a step portion 15 that is accommodated substantially flush.

As the packing material 16, for example, polyvinyl chloride type, chloroprene type, chlorosulfonated polyethylene type, ethylene propylene type, asphalt impregnated polyurethane type, EPE, EPDM type, rock wool type, ceramic wool, glass wool, It is composed of at least one kind of spongy packing such as a fireproof coating.

As shown in FIG. 1, the inorganic board 17 has a rectangular shape corresponding to the cross-sectional shape in the middle of the side surfaces of the male connecting portion 11 and the female connecting portion 18, with one end having an inclined surface and a length of 1 to 2 m.
2, which is mainly used for strengthening the fire resistance of the connecting portion α shown in FIG. 2, and is, for example, a calcium silicate plate, a calcium carbonate plate, a gypsum board, a perlite cement plate, a rock wool plate, or a net-like material. 0.5 to 10 mm thick
The density and the density are low, that is, about 10 to 50 kg / m ³ .

The female connecting portion 18 is an inorganic board 17 which functions as a fireproofing agent, an insertion groove 20 for fitting with the upper protrusion 13,
The main projection 21 that fits into the fitting recess 14 is formed. Reference numeral 22 is a waterproof packing material made of resin, EPDM, or the like.

(Example 1) (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 (Toray Silicon 193H) 2 parts by weight (e) catalyst (trade name: DABCO) 5 parts by weight (f) calcium carbonate (200 mesh) 100 parts by weight (g) aluminum hydroxide (coating coating) 100 parts by weight (h) vent hole forming member 105 Weight part (i) Anchor material 5 weight parts However, (i) apply | coats adhesives (polyisocyanate, epoxy resin, etc. about 5-30micro), for example, length 1-
A polyester resin fiber having a thickness of 3 mm and a thickness of about 10 to 100 μ was planted by electrostatic flocking. In addition, (h) is a thin cotton thread 3
Forming a string-shaped object with a diameter of 5 mφ from about 0 to 60 pieces,
This was placed at intervals of 60 mm in a 600 mm width (effective width of the back surface of the decorative surface 2a of the fireproof panel 1) parallel to the longitudinal direction and on the anchor material 9 as shown in FIG. In addition,
(G) is the minimum film thickness of resin, such as spray gun
It is coated with starch or the like.

(Example 2) 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) Blowing agent 13 parts by weight (alternative CFC 141b) (d) Additive 5 parts by weight (silicone, ammonium polyphosphate, etc.) (h) Same as Example 1 (i) Same as Example 1

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% paratoluene sulfonic acid aqueous solution) ( c) Blowing agent 13 parts by weight (alternative CFC 141b) (d) Additive 5 parts by weight (silicone, ammonium polyphosphate, etc.) (e) Expandable graphite 10 parts by weight In addition, (h) in Examples 1 and 2 , (I) are not provided.

Further, in Examples 1 and 2, the front surface material 2 and the back surface material 3 were 0.5 mm thick colored steel plates, and the raw materials of the synthetic resin foam layer 5 were 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 150 kg / m ³ (Example 2), was manufactured. The comparative example is a sandwich panel having a density of 150 kg / m ³ and a thickness of 50 mm. In addition, the inorganic board 17
Is a calcium silicate plate (incombustible No. 1061) with a thickness of 10
mm, widths 30 mm and 40 mm, and length 1800 mm are connected and formed.

Therefore, the fireproof panel 1 having the basic constitution as shown in FIG. 1 was constructed from the first embodiment to the comparative example. next,
For this fireproof panel 1, is a test according to JIS-A-1321, is a test according to JIS-A-1301, is a test according to JIS-A-1304, is strength at 10% strain, is heated by a floodlight, surface 85 to 95 ℃
And maintain for 3 days. The pressure sensor is AB type 50PSI manufactured by Kronell Co., Ltd., and the conduit system is 1.5 mmφ. The gas pressure in the comparative example was 0.3 kg / m ² for several hours after production at room temperature, and after heating, it became as shown in Table 1 below. Is JIS-A-1613
The test piece size is 50 mm x 50
mm). Is 90 ℃ to -30 ℃, the humidity is the same as the outside air, 1
It was done for 60 days of 2 hours each.

The results are shown in Table 1 below.

[Table 1]

In the comparative example, the reason for the failure is that the back surface temperature is 260 ° C. or higher. this is,
When the phenol resin is mixed and discharged to cause a dispersion reaction, there is no escape route for the surplus gas component, and the surface material 2, the back surface material 3 and the core material 4
There is a gap between them, and flame leaks from this part to the back side,
This is because the structure of the core material 4 was destroyed.

Example 1 was a fire-resistant panel 1 which was excellent in adhesive strength, elasticity and strength due to the polyisocyanurate foam, and which was reinforced by additives and had good wetting of the polyisocyanurate foam and no water absorption. Example 2
Is a phenol foam, but by degassing by the functions of the anchor material 9 and the vent hole forming member 10, a buffer layer is formed at the boundary portion between the surface material 2 and the core material 4, and while exhibiting the characteristics of the phenol foam, The weak point was greatly improved.

Further, as a result of the heat cycle test,
Although the adhesive strengths of Examples 1 and 2 are hardly reduced, the comparative examples tend to be significantly deteriorated, which directly affects the peeling of the surface material 2 and the core material 4.

What has been described above is only the embodiment of the fireproof panel 1 according to the present invention, and the fireproof panel 1 may be constructed as shown in FIGS.

That is, in FIGS. 4A to 4C, the male type connecting portion 11 and the female type connecting portion 18 are formed as shown in FIG. In addition, in FIGS. 5A to 5C, FIG.
Is formed by using the inorganic board 17 as a mold member, FIG.
In (b), 23 is a side member, and the packing material 16
It also has a fire resistance and an appropriate rigidity that also serves as the side surfaces of the male type connecting portion 11 and the female type connecting portion 18. Also, FIG.
In (c), 24 is a gas vent hole, the density, diameter and depth of which are set corresponding to the core material 4. FIG.
5 (a) to 5 (c) and FIGS. 5 (a) to 5 (c), the refractory material 6, the primer layer 7, the adhesive thin layer 8, the anchor material 9, and the vent hole forming member 10 are omitted.

[0030]

As described above, according to the fire-resistant panel of the present invention, unnecessary gas generated during the reaction can be significantly reduced in the synthetic resin foam layer, so that the adhesive strength between the surface material, the back surface material and the core material can be maintained for a long time. Do not lower. In particular, the fire-resistant weakness of polyisocyanurate foam was reinforced by the addition of a fireproofing material such as an inorganic powder, so that the fireproof test could be passed. Due to the synergistic effect of the anchor material and the vent hole forming member, 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. There is no destruction of the coating film on the back surface of the surface material. Core material density 80-300 kg / m
Despite increasing to ³ , peeling between the surface material and the core material,
Blisters and the like can also be prevented. In the long term, since the vent hole forming member was planted between the surface material and the plastic foam, the gas pressure was further reduced and various problems could be greatly improved. The fire resistance and fire resistance can be more surely improved by adding the resol type phenol foam resin powder. Refractory materials are fine particles that can be mixed very easily in the manufacture of various foams.
The desired foam can be formed. There are features and effects such as.

[Brief description of drawings]

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

FIG. 2 is an explanatory view showing a connecting portion of the fireproof panel according to the present invention.

FIG. 3 is an explanatory view showing an enlarged main part of the fireproof panel according to the present invention.

FIG. 4 is an explanatory view showing another embodiment of the fireproof panel according to the present invention.

FIG. 5 is an explanatory view showing another embodiment of the fireproof panel according to the present invention.

[Explanation of symbols]

 α Connection part 1 Fireproof panel 2 Surface material 2a Decorative surface 3 Backside material 4 Core material 5 Synthetic resin foam layer 6 Fireproof material 7 Primer layer 8 Adhesive thin layer 9 Anchor material 10 Vent formation member 11 Male connection part 12 Fixture Storage groove 13 Upper protrusion 14 Fitting concave groove 15 Step portion 16 Packing material 17 Inorganic board 18 Female type connecting portion 19 Cover portion 20 Insertion groove 21 Main convex line 22 Waterproof packing material 23 Side member 24 Gas vent hole

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification code Office reference number FI technical display location E04F 13/08 8913-2E E04F 13/08 M

Claims (1)

[Claims] 1. A core material is formed between a surface material and a back surface material made of a long plate material, and male and female connecting portions are provided on both side surfaces in the longitudinal direction of the core material, and an inorganic board is provided in the middle thereof. In a long fireproof panel interposed, at least a part of a chemical resistant / non-water-absorbing adhesive thin layer is provided on the back surface of the decorative surface of the surface material, and a string-like material is provided between the adhesive thin layer and the core material. The anchor material of the raised material is integrally interposed, and the core material is a refractory material composed of one or more kinds of organic powder particles and inorganic powder particles, and the density of the core material itself is 80 to 300 kg with respect to 100 parts by weight of the synthetic resin component.
/ M ³ and comprising an amount was added, and the refractory panels, characterized in that provided integrally vents forming member between the anchor member and the core member.