JP3421678B2 - Fireproof insulation panel - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an outer wall of a building or a building, and more particularly to a fire-resistant and heat-insulating composite panel having heat insulation and fire resistance, excellent workability, and excellent weather resistance. Things. [0002] Generally, according to the Building Standard Law, the size of a building,
Buildings that require a fire-resistant structure or fire-resistant structure are specified depending on the application and fire prevention area. Among them, a member that can withstand one hour of fire resistance especially in the case of an outer wall has a thickness of 100 mm.
A 35 mm thick rock wool was sprayed on the inner surface of a lightweight cellular concrete plate (hereinafter simply referred to as ALC) having a thickness of 35 mm or a fire prevention structure (steel frame). [0003] However, ALC
The plate has a heavy specific gravity of 0.7 and a large plate thickness, and has disadvantages such as requiring a special sash or the like. Further, when rock wool was sprayed, there were inconveniences such as poor workability, lack of beautiful appearance, peeling, and weakness against water. Further, as a composite panel in which these outer wall materials are improved, there is, for example, JP-A-6-87183. This composite panel almost solved the previous drawbacks, but resol type phenol foam (hereinafter, referred to as the core material)
(Only referred to as phenol foam) and the metal plate in some cases. This is because when the phenol foam raw material reacts, foams, and cures, the acid curing agent, methylene chloride, etc., which is a curing agent, breaks and peels off the coating film on the metal plate, and the phenol foam is peeled off from the metal plate. Condensed water at the time of reaction when the foamed structure of the foam reacts causes a shift in the optimal timing of adhesion in the reaction system, or the residual gas in the foamed structure expands due to solar radiation and partially peels off, separating the phenol foam and the metal plate, This portion sometimes protruded over a certain area. [0005] This seriously impaired the appearance of the decorative surface. In addition, there is a disadvantage that the repair of the middle and high-rise buildings is extremely expensive. SUMMARY OF THE INVENTION In order to eliminate such disadvantages, the present invention provides a phenol foam by adding a cellulose fiber and a neutralizing agent to a coating of a metal substrate in contact with the phenol foam. The present invention proposes a fire-resistant and heat-insulating composite panel in which the beauty of the decorative surface and the sustainability of the performance are improved by greatly improving the peeling of the metal base material. An embodiment of a fire-resistant and heat-insulating composite panel according to the present invention will be described below in detail with reference to the drawings. Figure 1,
FIG. 2 is a perspective view and a partially enlarged cross-sectional view showing a fire-resistant and heat-insulating composite panel A according to the present invention.
Reference numerals 2 and 3 are metal substrates, 4 is an outer coating film, 5 is an inner coating film, 6 is a cellulose fiber, 7 is a neutralizing agent, and 8 is a reinforcing coating film. More specifically, phenol foam 1
Mainly core, insulation, Kasamiuezai, and acts as a refractory material, density 50~300kg / m ³ position, in which the aluminum hydroxide powder as a flame燃強agent an appropriate amount of the resin material . [0009] Of course, the water of condensation by usage amount reduction of acid curing agents to control the reaction system significantly cuts, cellulose off
By adding components such as carbon fines such as fiber, lignin component, and moisture (at most about 10% by weight), it is possible to achieve fire protection structural test, fire resistant structural test, non-fluorocarbon, etc. It is a foam having a substantially uniform foam structure. The metal bases 2 and 3 are nonflammable and are made of, for example, one or more of aluminum plate, zinc iron plate, color steel plate, stainless steel plate, titanium, galvalume steel plate, galfan, clad steel plate and the like. Covers at least one surface or two surfaces of the phenolic foam 1, and has a cross-sectional shape formed into an arbitrary cross-section by a molding machine, a press, or the like. More specifically, as shown in FIG. 2, a metal substrate 2 such as a color steel plate has a decorative surface as a main body 2a, a zinc layer 2b, a chemical conversion coating 2c and a so-called outer surface side coating film 4 as a target. The outer surface coating film 4 is composed of an undercoat layer 4a and an overcoat layer 4b, and a weather-resistant and stain-resistant coating film 4c made of a fluororesin, a silicone resin or the like provided as required.
It consists of and. The inner side coating film 5 is formed of an undercoat layer 5a, for example, phenol foam 1, and an overcoat layer 5b made of a resin having good adhesive properties, for example, epoxy, polyurethane, or polyester resin . The overcoat layer 5b is shown in FIG. For example, a cellulose fiber 6 (having a length of about 1 to 100 microns,
Neutralizing agent 7, such as slaked lime , is added in an amount of 0.1 to 10 microns in thickness .
It is added at a ratio of 5 to 10% (weight ratio). More specifically, the cellulose fiber 6 improves the adhesive effect and mechanical strength by absorbing condensed water, anchoring the phenol foam 1, absorbing unreacted substances, etc., and slaked lime is a neutralizing agent 7 Is useful for suppressing the adverse effect of the acid curing agent. The condensed water and the acid curing agent have the greatest adverse effect on the formation of the phenol foam 1, and are effective in minimizing the above-mentioned undesirable components at the boundary of the contact portion at this time. The undercoat layer 5a is a baked coating film having a thickness of about 5 to 20 microns. The reinforcing coating 8 is provided as needed, and a water-absorbing resin or the like is applied to about 5 microns. Here, the explanation will be given again.
Reference numeral 3 denotes a color steel plate, an outer coating 4 having an overcoat layer 4b and an undercoat.
The material of the layer 4a is a polyester resin and a fluororesin as a vehicle.
About 40 microns with the paint to be
5, the overcoat layer 5b and the undercoat layer 5a are epoxy coating films,
The film thickness is about 15 microns in total and the overcoat layer 5b
Mixed with slaked lime as cellulose fiber 6 and neutralizer 7
The phenol foam 1 is a resole type, to which aluminum hydroxide, an acid curing agent, ammonium polyphosphate (flame retardant) and methylene chloride (foaming agent) are added.
And a total thickness of 50 mm and a density of 150 kg / m ³ . Therefore, in order to confirm the adhesive strength, JIS-A
Table 1 shows the test results according to -1613. [Table 1] Here, α is a value in which the coating film 5 on the inner surface of the metal base material 2 or 3 is formed only by primer coating (undercoating) to about 5 μm. Is a fire-resistant and heat-insulating composite panel A that is discharged, heated and cured in the same manner as in the example. Further, after manufacturing the fire-resistant and heat-insulating composite panel A, it is left at room temperature for 3 days, and after performing a cycle test between 0 ° C. and 80 ° C. for 4 cycles (100 hours), JIS-A-1613 These are the data obtained when the test was performed according to. FIGS. 4A to 4J and FIG.
(A)-(d) is sectional drawing which shows the other Example of the fireproof insulation composite panel A which concerns on this invention. In particular, FIG.
(D) shows packing material 9 and refractory reinforcing material 10
1 shows a fire-resistant and heat-insulating composite panel A formed with the following. As described above, according to the fire-resistant and heat-insulating composite panel of the present invention, the adhesion between the metal base material and the resol-type phenol foam is greatly enhanced as shown in the above-mentioned numerical values. . Since the adhesive strength is enhanced, there is little peeling between the resole-type phenol foam and the metal substrate, and the decorative surface of the panel does not have unevenness, so that a beautiful appearance can be formed. Condensed water, foaming agent, acid curing agent, flame retardant and other unreacted substances and surplus substances remaining during the reaction generated during the formation of the resole type phenol foam are coated with a metal substrate by the function of cellulose fiber, slaked lime, etc. Adhesive strength can be maintained for a long time without being destroyed. There are features and effects.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view showing one embodiment of a fire-resistant and heat-insulating composite panel according to the present invention. FIG. 2 is an explanatory view showing a part of the fire-resistant and heat-insulating composite panel according to the present invention in an extracted and enlarged manner. FIG. 3 is an explanatory diagram showing only the vicinity of an inner side coating film which is a main part of the present invention. FIG. 4 is a sectional view showing another embodiment of the fire-resistant and heat-insulating composite panel according to the present invention. FIG. 5 is a sectional view showing another embodiment of the fire-resistant and heat-insulating composite panel according to the present invention. [Description of Symbols] A Fireproof and heat-insulating composite panel 1 Resol type phenol foam 2 Metal substrate 2a Main body 2b Zinc layer 2c Chemical conversion coating 3 Metal substrate 4 Outer coating 4a Undercoat 4b Topcoat 4c Weather resistance and resistance Stainable coating film 5 Inner surface coating film 5a Undercoat layer 5b Overcoat layer 6 Cellulose fiber 7 Neutralizing agent 8 Reinforcement coating film 9 Packing material 10 Fireproof reinforcement material

Claims (1)

(57) Claims 1. In a composite panel in which a resol-type phenol foam 1 is integrally interposed between metal substrates 2 and 3, the resole-type phenol of the metal substrates 2 and 3 is provided. At least cellulose is applied to the inner side coating film 5 in contact with the foam 1.
A fire-resistant and heat-insulating composite panel comprising 0.5 to 10 % of a fiber 6 and a neutralizing agent 7 .