JPH08218595A - Fireproof panel - Google Patents

Abstract

PURPOSE: To obtain an excellent strength by mounting an air-permeable member in the longitudinal direction between a plastic foam as a core material and a surface material or a rear material and forming a plurality of micro vent holes with engaging pieces in the rear material. CONSTITUTION: Core materials 3 consisting of a plastic foam 3a are sandwiched between the surface material 1 and rear material 2 of a metallic sheet composed of aluminum, etc., thus molding a long-sized fireproof panel A. Air-permeable members 3c made up of a member having air permeability such as a kite string are inserted to the rear of the surface material 1 while forming micro clearances in the plastic foam 3a. Micro vent holes 7 having engaging pieces projected into the plastic foams 3a from the rear material 2 side are bored up to the air-permeable members 3c, and a gas is discharged to the outside. Accordingly, deformation such as the bulging, warpage, etc., of a decorative surface can be prevented.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention
Can be used as outer wall material, roof material, ceiling material, floor material, partition material, fire door, etc., and swells, warps after manufacturing,
The present invention relates to a fireproof panel which is free from deformation such as peeling and has excellent strength.

[0002]

2. Description of the Related Art In general, a number of composite panels in which a thin plate-shaped front material and a back surface material sandwich a core material made of a synthetic resin foam have been invented and put on the market.

[0003]

However, in a composite panel having such a structure, under high heat, the front 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. Due to this, a gap is created in the connecting part, and heat and flame leak from this part to the opposite side, and J
There was a defect that the test of IS-A-1304 for a fire resistant structure for 1 hour could not be passed. Further, this kind of composite panel, particularly the composite panel manufactured by discharging the core material in a liquid or granular form, has the following drawbacks. That is, phenolic foam, polyurethane foam, synthetic resin foam such as polyisocyanurate foam is an unreacted component of the components used when forming the core material, an excess gas component produced by the reaction (chlorine, carbon dioxide, methylene chloride, formaldehyde, steam, The surface of the composite panel may be swollen or warped with a gas such as hydrogen), and the image of the decorative surface may be significantly deteriorated.

Further, a composite panel in which a phenol foam is simply sandwiched between a surface material and a back surface material is weak in strength because it uses a synthetic resin foam as a core material, and is inferior in bending strength and wind pressure resistance. The installation pitch on the frame of the was also short, and there was a drawback that the workability was poor. Further, when a stock solution of resol-type phenol and a curing agent are mixed and discharged and reaction foaming is performed to form a core material, condensed water in the reaction is several tens percent of the weight in the phenol foam. It is retained, and after the curing period of the product or after the panel is constructed, the moisture vaporizes due to changes in the outside temperature, etc., and there is no escape route, so it remains between the surface material and core material of the composite panel, and the composite panel surface There is a defect that the composite panel is adversely affected over time, such as swelling or warping. Furthermore, the adhesion strength between the surface material, the back surface material and the core material is weak, and there is a drawback that the surface material, the back surface material and the core material, in particular, end portions are separated by a small impact. In particular, the surplus gas was generated during the high temperature of midsummer (when the surface material is heated).

[0005]

In order to eliminate such drawbacks, the present invention forms an inorganic board in a male and female type connecting portion to significantly improve mechanical strength, fire resistance and engaging force. -Passing the test for 1 hour of the fire resistant structure of A-1304, forming a plurality of breathable members in at least one of the boundaries between the plastic foam and the plastic foam and the surface material or the plastic foam and the back surface material, and the core. Phenolic foam by releasing the gas generated in the plastic foam to the outside from the gas permeable member and the minimum ventilation hole by making the fire resistant panel with the minimum ventilation hole with the locking piece protruding in the material formed on the back surface material Excessive gas components and condensed water of the above are released to the outside, and the swelling and warpage of the decorative surface of the fireproof panel will not change for many years. The formed locking piece is intended to propose a refractory panels with enhanced peel strength exerts an anchor effect.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the fireproof panel according to the present invention will be described in detail below with reference to the drawings. That is, as shown in FIGS. 1 and 2, the fire-resistant panel A has a front material 1 and a back material 2 sandwiching a core material 3 made of a synthetic resin foam or the like, and the overall shape thereof is a long shape. A surface material 1 made of a thin plate, a male connecting portion 4 formed at one end in the width direction, a female connecting portion 5 formed at the other end, and a decorative surface 6, an extremely small vent hole 7, an inorganic packing material 8, a waterproof packing material. 9 is a long-sized one formed of a metal panel, a metal shielding, and the like. Further, FIG. 3 is a cross-sectional view showing a construction state.

The surface material 1 and the back surface material 2 are thin metal plates such as iron, aluminum, copper, stainless steel, titanium and aluminum.
Roll forming of zinc alloy plated steel plate, enamel steel plate, clad steel plate, laminated steel plate (PVC steel plate, etc.), sandwich steel plate (damping steel plate, etc.) Molded into various shapes by press molding, extrusion molding, etc., or formed into various arbitrary shapes by extrusion molding, press molding, autoclave culturing, etc. of inorganic materials, and also aluminum vapor-deposited paper, 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 fabric, etc., or a laminate of two or more kinds Alternatively, it is a sheet-like material that is waterproofed or flame-retarded.

The core material 3 is composed of a plastic foam 3a, an inorganic board 3b interposed at both ends, and a plurality of breathable members 3c.
a mainly functions as a heat insulating material, a fire resistant material, an adhesive, a reinforcing material, a cushioning material, a sound absorbing material, a bulking material, a weight reducing material, and the like.

As the plastic foam 3a, a resol type phenol foam is mixed with a foaming agent, aluminum hydroxide (Al (OH) ₃ ), ammonium polyphosphate, graphite, a curing agent, an inorganic material such as calcium silicate or calcium carbonate. Then, it is foamed and cured to form a finished density of about 50 to 300 Kg / m ³ .

Resol type phenolic foam (hereinafter,
Phenolic foam) is mainly produced by a continuous foaming molding method, and has the properties of noncombustibility, low smoke generation, and low toxicity compared to other synthetic resin foams (plastic foams). Is. Further, a metal siding material formed by sandwiching this phenol foam on a metal plate is JIS-A-1301 as a single body.
(Fire protection test method for wooden parts of buildings), JIS-A-1
It has a fireproof performance that passes the fireproof structure test of 302 (fireproof test method of non-combustible structure part of building).

As the foaming agent, a stock solution of phenol foam is used.
When the amount is 0 part by weight, 2 to 50 parts by weight is mixed with the undiluted solution of the phenol foam, and examples thereof include methylene chloride and carbonate (powder).

Aluminum hydroxide is mixed in an amount of 50 to 300 parts by weight based on 100 parts by weight of the undiluted solution of phenol foam, and is useful as a flame retardant, refractory material, or heat resistant material. Is. For example, the composition thereof has a moisture content of 0 to 30%, a particle size of 10 to 100 μm, and a purity of 90% or more.

Ammonium polyphosphate is used as a reaction adjusting material and a flame retardant material, when 1 to 25 parts by weight of the phenol foam stock solution is mixed with the phenol foam stock solution. The particle size is 30-100 μ.

The graphite is mixed in an amount of 2 to 30 parts by weight based on 100 parts by weight of the undiluted solution of phenol foam. The effect is that the phenol foam is carbonized at the time of fire to form voids, and the voids are closed by graphite expanded by heating to prevent deterioration of fire resistance performance due to thinning.

The curing agent is a phenol foam stock solution of 10 parts.
When the amount is 0 part by weight, 10 to 50 parts by weight is mixed with the stock solution of the phenol foam, which is an organic phosphoric acid type or a mixture of phosphoric acid type and PSA type.

An inorganic material such as calcium silicate or calcium carbonate is mixed to improve the shape retention and fire resistance of the plastic foam 3a.

The inorganic board 3b is used to enhance the fire resistance of the connecting portion, which will be described later. For example, calcium silicate board, calcium carbonate board, gypsum board, perlite cement board, rock wool board, slate board, ALC. Board,
PC board, other inorganic lightweight body, inorganic lightweight foam, or one or more of these composite boards, or super high density resin (high density phenol foam, etc.), male type connecting part 4 of fireproof panel 1, female type It is interposed integrally with the connecting portion 5.

Breathable member 3c formed on the back surface of the surface material 1.
Is made of a material having air permeability such as a kite thread. This breathable member 3c is a surplus gas component (chlorine, carbon dioxide, chlorine, carbon dioxide, etc.) that has undergone a chemical reaction in the plastic foam 3a due to the influence of the residual acid component of the curing agent or foaming agent used for the plastic foam 3a after the plastic foam 3a is manufactured. A gas such as methylene chloride, formaldehyde, water vapor, hydrogen) or condensed water at the time of reaction can be discharged to the outside from the cross section of the fireproof panel A through the wood mouth and the minimum ventilation hole 7 described later by the ventilation member 3c. It is a thing.
For this reason, the front surface and the back surface of the manufactured fire-resistant panel A are free from deformation such as swelling and warping due to internal gas, and the strength,
The fireproof panel A has excellent fireproof performance. Of course, as shown in the figure, the plastic foam 3a may be formed not only on the surface material 1 side but also on the intermediate portion, the back surface material 2 side, or in layers in a plurality of rows.

As shown in the enlarged view of FIG. 4, the breathable member 3c forms a minimum gap α in the plastic foam 3a, and includes, for example, cocoons, cotton, hemp, hairs (vegetable fiber, animal fiber). Fiber, synthetic resin fiber, etc.) is a thin and long fiber that is stretched and twisted. More specifically, the minimum gap α formed in the air-permeable member 3c is formed by the surplus gas components (chlorine, carbon dioxide, methylene chloride, formaldehyde, water vapor, hydrogen) in the plastic foam 3a or the condensed water during the reaction. In order to allow ventilation, the fireproof panel A is continuously formed up to the end of the mouth to form a communication structure. The shape is a linear shape, a net shape, a rod shape, a tape shape, a coil shape, or the like.

More specifically, the breathable member 3c is formed by inserting it together with the plastic foam 3a, and is embedded in the plastic foam 3a. The resin of the plastic foam 3a does not penetrate into the breathable member 3c, so that the breathable member 3c
Since it is formed only on the outer surface part of the breathable member 3c
A minimal gap α is formed in the central portion of the communication.

The minimum ventilation holes 7 are shown in FIGS. 1 to 5 (a) to (c).
As shown in FIG. 5, holes are formed in the core material 3 from the back surface material 2, and in the figure, the air permeable member 3c is drilled. The extremely small air holes 7 are formed by the excess gas components (chlorine, carbon dioxide, methylene chloride,
It is for releasing gases such as formaldehyde, water vapor, and hydrogen) to the outside. Further, even if the minimum ventilation hole 7 is not formed up to the breathable member 3c, the surplus gas component in the vicinity of the formation of the minimum ventilation hole 7 is discharged to the outside. The size is about 0.1 to 5 mmφ.

The locking piece 7a, which is formed when the extremely small air holes 7 are formed, bites into the plastic foam 3a and exerts an anchoring effect.
It significantly improves the adhesive strength with. The shape of the locking piece 7a is formed as shown in FIGS. 5 (b) and 5 (c).

With the structure of the core material 3 as described above, swelling due to internal gas occurs on the front and back surfaces of the fire-resistant panel A after manufacturing,
The fire-resistant panel A has no deformation such as warpage and is excellent in adhesive strength and fire resistance.

The inorganic packing material 8 is made of, for example, rock wool felt, ceramic wool, or the like, and prevents a gap from being formed between the connecting portions during the fire resistance structural test to block the infiltration of flames. It is useful as a function of an airtight material.

The waterproof packing material 9 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 also useful as a waterproof material, airtight material, etc.

Here, a fireproof panel A as shown in FIG. 1 was used as a basic shape, a front material 1 and a back material 2 were colored steel plates, and an internal gas pressure measurement test was conducted. ) Does not form 0.22 Kg / cm
To which the ^2, obtained by forming a permeable member 3c (kite) is 0.02 kg / cm ^2, was confirmed to be reduced by more than 90 percent. In addition, the surface material 1 of the fire-resistant panel A that was tested assuming the midsummer when excess gas is generated
It was measured in a state where the colored steel sheet to be heated to about 40 to 80 degrees.

[0027]

[Other Embodiments] What has been described above is one embodiment of the fireproof panel according to the present invention, and FIGS.
The breathable member 3c can be formed as shown in (a) to (e). That is, FIGS. 6A to 6F to FIG.
(A)-(e) shows the modification of the formation position of the breathable member 3c.

Further, FIG. 10 shows a fireproof panel A in which a breathable member 3c is formed in a lattice pattern, and FIGS.
12 (a) to 12 (e) show another embodiment of the shape of the breathable member 3c.

Further, FIGS. 13 (a) to 13 (h) and FIGS. 14 (a) to 14 (c) show other embodiments of the perforation shape of the minimum ventilation hole 7. Also, FIG.
(D) -FIG.19 (a), (b) shows the other Example of the fireproof panel A. As shown in FIG. That is, FIG.
16D and 16A to 16D show a fire-resistant panel A formed by forming the breathable member 3c as shown in the figure, and changing the number of formation of the minimum ventilation holes 7 and the perforation depth, respectively. .

Further, FIGS. 17A to 17C and FIG.
(A) to (f) show other examples of the fireproof panel A, and the breathable member 3c and the minimum ventilation holes 7 are omitted.

Further, FIGS. 19 (a) and 19 (b) (cross-sectional view taken along the line aa in FIG. 19 (a)) show an end face wall 1a formed at both longitudinal ends (tree openings) of the fireproof panel A, It is useful for improving the workability of vertical joints, strengthening waterproofness, improving the efficiency of degassing, and improving the beauty of storage.

[0032]

As described above, according to the fireproof panel of the present invention, (1) the mechanical strength of the fireproof panel is significantly improved as compared with the conventional one. (2) Fireproof structure test of building structure part (J
IS-A-1304), Fire protection test for building fire doors (JI
S-A-1311), fireproof warehouse (JIS-S-1037)
It has the performance to pass the fire resistance test. (3) surface material,
The backside material and the core material are firmly bonded, and there is no peeling between the members. (4) Since there is no deformation, the engagement is reliable and the engagement force is strengthened, and it is strong against shaking such as an earthquake. (5) Since the inorganic boards are formed on both ends of the fireproof panel, the fireproof performance of the connecting portion, which is the weakest point in a fire, is significantly improved. (6)
By forming a breathable member in the core material and forming a minimum ventilation hole from the back surface material, even if excess gas is generated in the core material, the breathable member efficiently discharges it from the cross section of the fireproof panel to the outside. , No deformation such as swelling or warpage on the decorative surface of the fireproof panel for many years. (7) Since the locking pieces are formed in the extremely small ventilation holes, the adhesive strength between the back surface material and the plastic foam is improved. (8) The productivity (yield) is improved. (9) The number of complaints after sale of the fireproof panel, which became a product, will be greatly reduced. There are characteristics and effects.

[Brief description of drawings]

FIG. 1 is a cross-sectional view showing a typical example of a fireproof panel according to the present invention.

FIG. 2 is a perspective view showing a typical example of a fireproof panel according to the present invention.

FIG. 3 is a cross-sectional view showing a method for constructing a fireproof panel according to the present invention.

FIG. 4 is a partially enlarged cross-sectional view showing a typical example of a fireproof panel according to the present invention.

FIG. 5 is a partially enlarged cross-sectional view and a partially enlarged perspective view showing a typical example 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 another embodiment 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.

FIG. 14 is an explanatory view showing another embodiment of the fireproof panel according to the present invention.

FIG. 15 is an explanatory view showing another embodiment of the fireproof panel according to the present invention.

FIG. 16 is an explanatory view showing another embodiment of the fireproof panel according to the present invention.

FIG. 17 is an explanatory view showing another embodiment of the fireproof panel according to the present invention.

FIG. 18 is an explanatory view showing another embodiment of the fireproof panel according to the present invention.

FIG. 19 is an explanatory view showing another embodiment of the fireproof panel according to the present invention.

[Explanation of symbols]

 A Fireproof panel α Minimal gap 1 Surface material 1a End wall 2 Backside material 3 Core material 3a Plastic foam 3b Inorganic board 3c Breathable member 4 Male type connection part 5 Female type connection part 6 Decorative surface 7 Small airflow hole 7a Locking piece 8 Inorganic packing material 9 Waterproof packing material

Claims (1)

[Claims] 1. A long fireproof panel in which a core material is formed between a surface material and a back 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. At
The core material is phenol foam resin, aluminum hydroxide,
A plastic foam mixed with an inorganic material such as ammonium polyphosphate, graphite, calcium silicate or calcium carbonate, and an inorganic board formed on at least one of a male type connecting portion and a female type connecting portion. Alternatively, a plurality of breathable members formed along the longitudinal direction are formed on at least one of the boundaries between the plastic foam and the surface material or between the plastic foam and the back surface material, and the back surface material has locking pieces protruding into the plastic foam. A fire-resistant panel, characterized in that a plurality of extremely small vent holes are formed.