JPS581527Y2 - Three-layer composite building material for folded plate processing - Google Patents

Description

[Detailed explanation of the idea] The present invention relates to the structure of composite building materials.

More specifically, the central layer is a flexible sheet-like material composed of inorganic fibers or a fibrous material mainly composed of inorganic fibers and a small amount of a water-resistant binder, and a thin gold plate is placed on one side of the layer. This invention relates to the structure of a three-layer composite building material for folded plate processing, which is made by laminating a perforated nonwoven fabric on the other side and has excellent adhesive workability, bending workability, fireproofing properties, heat resistance, etc.

Conventionally, sheet-like insulation materials made by combining a thin metal plate on one side of an inorganic fiber sheet made of mineral wool, asbestos, or glass fiber have excellent fire-retardant performance, but they are not suitable for processing metal plates and composite trailing plates. When bent using a roller, etc., the inorganic fiber sheet may be damaged by the pressure of bending, and cracks may occur on the surface due to poor surface strength at large bending angles. Using it as it is as a surface material is undesirable in terms of appearance and construction.

For this reason, in many cases, inorganic fiber sheets are not composited with a metal plate and then bent, but a metal plate is bent and then composited.

Therefore, the current situation is that sheet-like products using asbestos or glass fiber have poor working environments and occupational hygiene conditions during processing, and poor working efficiency.

As a result of various studies in order to obtain a building material that does not have the above-mentioned drawbacks, the inventors of the present invention have developed a flexible material composed of inorganic fibers or a fibrous material mainly composed of inorganic fibers and a small amount of a water-resistant binder. We came up with a three-layer composite material for folded plate processing, which consists of a sheet-like material as the central layer, a thin metal plate on one side of the layer, and a perforated nonwoven fabric on the other side. It has excellent fire prevention performance, heat insulation performance, and sound absorption performance, and has sufficient smoothness on both metal and other surfaces for appearance and construction, and can be folded using rollers for processing steel plates and composite trailing plates. Not only does it have a surface strength that is sufficient to withstand plate processing, but it is also an excellent folding material that greatly improves the working environment and occupational hygiene, and improves work efficiency, even when folding metal plates into composites after bending them. The purpose is to provide a three-layer composite building material for plate processing.

The inorganic fibers or the fibrous material containing them as the main component used as the material constituting the central layer of the three-layer composite building material for processing folded plates of the present invention are selected from rock wool, mineral wool, asbestos, glass fiber, etc. Although it is preferable to use any inorganic fibrous material, it is possible to use organic fibrous materials such as vinylon, nylon, polyester, etc. together with the above-mentioned inorganic fibers for the purpose of improving folding plate processability as long as the fire protection performance is not impaired. It is.

Furthermore, examples of water-resistant binders used with the above-mentioned inorganic fibers or fibrous materials containing them as main components include silicates represented by water glass, phosphates, borates, various cements, and inorganic materials such as gypsum. type binders, and thermoplastic resins such as various synthetic rubbers, polyvinyl chloride, polyvinyl acetate, ethylene-vinyl acetate copolymers, polyvinyl alcohol, polyester resins, polyamide resins, epoxy resins, phenolic resins, urea resins, melamine resins, etc. It is a thermosetting resin and can be used in any form such as powder, solution, emulsion, or slurry.

It is also possible to use additives such as flame retardants, curing agents, thickeners, etc., if necessary.

As for the thin metal plates constituting the three-layer composite building material for folded plate processing of the present invention, commercially available flexible thin metal plate materials such as aluminum plates, stainless steel plates, and iron plates are widely used. However, from the viewpoint of bending workability and product cost, it is preferable to use one with a thickness of 2 mm or less.

As the perforated nonwoven fabric constituting the three-layer composite building material of the present invention, the perforated nonwoven fabrics described in Japanese Patent Publication No. 36-7274, Japanese Utility Model Publication No. 39-4194, etc. are used.

That is, as described in the above-mentioned document, the perforated nonwoven fabric is produced by placing a perforated plate in which a large number of small holes are made at intervals in the fiber web, and applying fluid pressure over the perforated plate.
The arrangement of the fibers corresponding to the pores is changed to form a large number of small pores in the fiber web, and the fibers near the pores that have been pushed away by fluid pressure are bundled. The fibers are joined together with a small amount of binder if necessary.

Such perforated nonwoven fabrics not only have the strength to withstand handling during folded plate processing and the surface strength, aesthetics, and anti-condensation properties necessary for interior surface materials, but also differ from ordinary nonwoven fabrics in that they It is characterized by its elasticity due to the large number of pores that exist inside it.

For this reason, the composite building material of this invention has workability (
This makes the composite building material particularly superior in terms of ease of bending and ease of passing through the folding plate processing process.

The above-mentioned perforated nonwoven fabric can be used within a range (organic content: 200 g) that does not reduce the fireproofing performance of a flexible sheet-like material composed of inorganic fibers or a fibrous material mainly composed of inorganic fibers and a small amount of a water-resistant binder. /m2 or less) is preferable.

The three-layer composite building material of the present invention will be explained below with reference to drawings.

Figure 1 shows an enlarged cross-sectional view in the thickness direction of the three-layer composite building material of the present invention, where 1 shows a perforated nonwoven fabric, 2 shows an inorganic fiber or a fibrous material mainly composed of this, and a small amount of a water-resistant binder. Indicates a flexible sheet-like material composed of
3 indicates a flexible thin metal plate.

Figure 2 shows a schematic diagram of the three-layer composite building material of the present invention after it has been folded into a roofing material for a building. A flexible sheet-like material 2 composed of a fibrous material as a main component and a small amount of a water-resistant binder forms a heat insulating layer, and a thin metal plate 3 serves as an exterior material.

The three-layer composite building material of the present invention can be manufactured, for example, by the following method.

That is, asbestos is selected as the inorganic fibrous material, opened, and formed into a felt shape while being laminated and bonded using sodium silicate and a water-resistant agent as a water-resistant binder to obtain a sheet-like product.

The obtained sheet-like material is pressure-bonded to a perforated nonwoven fabric using an adhesive such as a vinyl acetate adhesive.

Furthermore, a thin metal plate material is crimped onto one side using an adhesive such as a chloroprene rubber adhesive, thereby obtaining the object of the present invention.

The three-layer composite building material of this invention can be used, for example, in roof type, timber type,
An inorganic fiber sheet made of mineral cotton, asbestos, or glass fiber that has been conventionally used as a material that can be folded into various shapes such as corrugated plates and used as roofing, wall, and flooring materials for both interior and exterior purposes. It has sufficient smoothness in appearance and construction, and improves workability when bending, without reducing the fireproofing performance of sheet-like insulation materials made by combining metal plates on one side of the object. Furthermore, the working environment and occupational hygiene conditions when metal plates are combined after bending can be greatly improved, and work efficiency can be improved.

[Brief explanation of drawings]

Figure 1 shows an enlarged cross-sectional view in the thickness direction of the three-layer composite building material of the present invention, in which 1 is a perforated nonwoven fabric, 2 is an inorganic fiber or a fibrous material mainly composed of this, and a small amount of a water-resistant binder. The constructed flexible sheet-like material is shown, and 3 represents a thin metal plate. FIG. 2 shows a schematic diagram of the three-layer composite building material of the present invention after it has been folded into a roofing material for a building.

Claims (1)

[Scope of utility model registration request] The central layer is a flexible sheet-like material composed of inorganic fibers or a fibrous material mainly composed of inorganic fibers and a small amount of water-resistant binder, and a thin metal plate is placed on one side of the layer, and a thin metal plate is placed on the other side of the layer. A three-layer composite building material for processing folded plates made by laminating perforated nonwoven fabric on top.