JPH09226045A - Fireproofing sheet - Google Patents

Abstract

PROBLEM TO BE SOLVED: To form a fireproofing material on an outer peripheral face of a steel material securely, easily, and safely by impregnating the fireproofing material into a nonflammable sheet material as a core material or laminating it on nonflammable sheet material so as to integrally form and integrally laminating a protective film on the fireproofing material. SOLUTION: This fireproofing sheet A can be obtained by impregnating a fireproofing material C into a nonflammable sheet material B or laminating the fireproofing material C on the nonflammable sheet material B so as to integrate them, and by covering the fireproofing material C with a protective film D so as to integrally form. The nonflammable sheet material B is a part to be a core material obtained by forming a net-like sheet non-woven fabric and fiber out of a calcium carbonate, a calcium silicate, and a fiber of rock wool. The material of the fireproofing material C is formed of one kind or more selected from an expandable coating or a sodium silicate as an expanding agent, a talc as an inorganic powder, a starch and a polyurethane resin as a binder. For the protective film D, a synthetic resin film, a coat film, and a hot melt mold can be named.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention covers an outer peripheral surface of a steel material used for a building or a building requiring a fire-resistant structure,
The present invention relates to a fireproof coated sheet which is interposed in a core material to improve the fireproofness of a sandwich panel.

[0002]

2. Description of the Related Art Conventionally, a structure made of steel used for a building or a structure requiring a fireproof structure is generally made to have a fireproof structure by blowing rock wool on site after the body is assembled and formed. It was In addition, a method of adding a fire retardant has been adopted to improve the fire resistance of the sandwich panel.

[0003]

However, in the above method, it is dangerous to spray rock wool.
The operation was in a dirty and harsh 3K environment, and considerable skill was required to form a uniform layer of rock wool. In addition, there was a danger that it would deteriorate with time, peel off and drop. In addition, a spraying device is needed on site, which requires transportation costs and the like. Further, the fireproof rock wool is not in a sheet form, and cannot be accurately formed in a layered form on a core material such as a panel form.

[0004]

SUMMARY OF THE INVENTION In order to eliminate such drawbacks, the present invention uses a non-combustible sheet material as a core material to maintain a fixed shape, and impregnates the core material with a fireproof coating material or laminates it. Integrate and coat this fireproof coating with a protective film, eliminating the work of spraying rock wool at the construction site, and reliably, easily and safely forming the fireproof coating on the outer peripheral surface of the steel material, and with a constant thickness Can form a stable fire-resistant coating material, and also fire resistance of sandwich panels,
To provide a fireproof coated sheet which can be formed into a core material for strengthening fire resistance, or can be integrally interposed between a surface material, a back surface material and a core material to construct a lightweight, heat-insulating, fireproof fireproof panel or the like. is there.

[0005]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the fireproof coated sheet according to the present invention will be described in detail below with reference to the drawings. FIG. 1 is an enlarged explanatory view showing a typical example of the fireproof coating sheet A, B is a nonflammable sheet material impregnated with or laminated with the fireproof coating material C, and the fireproof coating material C is a protective film D. It is formed integrally by coating.

[0006] The non-combustible sheet material B is a core material and functions as a reinforcing material and a skeleton material for high heat treatment. Specific examples thereof include calcium carbonate, calcium silicate, rock wool, carbon, glass and metal. One or more fibers such as phenol resin are used as a net-like sheet-shaped nonwoven fabric or fibers. The thickness is about 0.2 to 5 mm, which is integrated by using a synthetic resin, starch or the like as a binder. The flexible non-combustible sheet material B is preferable.

The fire-resistant coating material C is partially impregnated into the non-combustible sheet material B and self-adhesive, and the other is laminated and integrated on the non-combustible sheet material B. The seed has fire resistance, fire resistance and heat insulation. Approximately 50 ~ 2 by exhibiting and forming an adiabatic refractory layer under high heat
It constitutes a foamed layer that blocks around 00 ° C.

The material of the fire-resistant coating material C is a well-known foam paint, or the foaming agent a is sodium silicate, sodium borate, graphite or the like, and the inorganic powder B is talc, clay, calcium silicate, calcium carbonate or water. Aluminum oxide powder, carbon fiber, antimony trioxide, ammonium polyphosphate, binders such as starch, glue, paraffin, synthetic resins such as polyurethane resin, phenol resin, polyisocyanurate resin, polystyrene resin, epoxy resin It will be.

The refractory coating C has a temperature of about 5
Has a heat insulating property of 0 to 200 ° C and a thickness of 0.5 to 5 mm
And the expansion ratio is about 2 to 50 times, and the thickness after foaming is 2
The composition is about 30 mm.

As the protective film D, a property which is convenient for protecting the fireproof coating material C from water, solar radiation and the like, and for adhering the fireproof coating sheet A to another face material such as a metal plate or a non-combustible plate α integrally. And is a synthetic resin film, a coating film, a hot-melt type (100 to 300 ° C.), or the like.

[0011]

[Other Embodiments] The embodiment described above is one embodiment of the fireproof coated sheet according to the present invention, and may be constructed as shown in FIGS. That is, FIG. 2 is a fire-resistant coating sheet A in which a non-combustible sheet material B is formed into a film with a synthetic resin or the like, the above-mentioned fire-resistant coating material C is laminated on one surface thereof, and a protective film D is provided thereon. 3 is a non-combustible sheet material B sandwiched and integrated with a fireproof coating material C, and a protective film D is integrally formed on the non-combustible sheet material B.

At this time, in the refractory coating material C, moisture, crystal water, etc. are sequentially released according to the heating temperature to maintain the cooling time for a long time, and further, the heat insulating property is enhanced by the synergistic effect with the expansion of graphite. It is structured.

In FIG. 4, a mountain wave is formed only on one surface of the fireproof coating C, and the bonding area with the core material is expanded on a panel (not shown) to further enhance the function as the fireproof coating sheet A.

FIG. 5 shows the fireproof coated sheet A shown in FIGS.
1 shows one example of vertically flocking synthetic resin, glass, short fibers (about 1 to 10 mm in length) such as fibers on at least one surface of the protective film D of FIG. It shows a case where the integration of the sheet A is further strengthened.

[0015]

As described above, according to the fireproof coated sheet according to the present invention, it is possible to integrally form the front and back materials such as a sandwich panel and the core material such as plastic foam with an adhesive agent or the like. Since the fire-resistant coating material is formed integrally with the non-combustible sheet material, the sheet becomes a skeleton material of the heat-insulating foam layer under high heat, and the heat-insulating property of the foam layer is high, so that the fire resistance and fire resistance of a predetermined member can be improved. It can be strengthened simply by gluing.
Fire protection and weather resistance can be maintained for a long period of time with a protective film, and there is little deterioration in performance. The fireproof coated sheet also functions as a cushioning material and a separating material. By forming the fire-resistant coating material in the form of a sheet having an adhesive layer, it is possible to easily perform fire-resistant coating on an arbitrary part. Since it can be easily adhered to the surface of a steel material requiring a refractory structure, the on-site rock wool spraying work that has been necessary until now is not necessary. There are features and effects such as.

[Brief description of drawings]

FIG. 1 is an enlarged cross-sectional view showing a typical example of a fireproof coated sheet according to the present invention.

FIG. 2 is an explanatory view showing another example of the fireproof coated sheet according to the present invention.

FIG. 3 is an explanatory view showing another example of the fireproof coated sheet according to the present invention.

FIG. 4 is an explanatory view showing another example of the fireproof coated sheet according to the present invention.

FIG. 5 is an explanatory view showing another example of the fireproof coated sheet according to the present invention.

[Explanation of symbols]

 A Fire-resistant coating sheet B Non-combustible sheet material C Fire-resistant coating material D Protective film α Metal plate, non-combustible plate, etc. β Core material b Foaming agent b Inorganic powder binder

Claims (1)

[Claims] 1. A fire-resistant coating sheet comprising a non-combustible sheet material as a core material, impregnated with or laminated with a fire-resistant coating material to integrally form a protective film on the fire-resistant coating material.