JPS6132475B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention uses various types of non-combustible and lightweight calcium silicate plates as a core material, and at least one side of the plate is used for reinforcement, cosmetic purposes,
This invention relates to non-combustible composite building materials that have improved weather resistance and other base materials integrated through a special adhesive.

In general, various calcium silicate plates have been used as building materials, such as interior materials, because they are nonflammable, lightweight, and have excellent moldability as described above.
However, calcium silicate plates had the disadvantage of being inferior in mechanical strength or adhesion to adhesives. Therefore, so-called composite building materials using calcium silicate plates as a core material are commercially available. However, the structure of this type of composite building material consisting of a calcium silicate plate and a base material, such as a metal plate, is as follows: ○ Calcium silicate board is simply held in place by bending the metal plate, ○ A is pasted with a synthetic resin adhesive, or ○ C is hydrated. It is attached using a glass adhesive. In other words, in the case of ◯A, there is a high risk that the core material, which has poor mechanical strength, will be damaged when the core material is clamped, and if the clamping is weak, the core material may fall off. In other words, it was extremely difficult to attach the core material. In addition, in the case of ○ and B, since the adhesive was an organic substance, it emitted smoke in the event of a fire or high temperature, and had the disadvantage that the adhesion deteriorated and the base material and core material separated.
Moreover, this type of adhesive has needle-like crystals and the surface portion of its core material is powder-like, so it has a fatal defect of weak adhesive strength. Furthermore, in the case of ◯C, water glass, which is the main component of the adhesive, gradually shrinks upon drying, making it difficult to maintain a predetermined adhesive strength over a long period of time. In addition, since the conventional adhesive layer did not use a composition that could function as a heat insulating layer in addition to its original function, the meaning of the composite was lost.

The present invention was made as a result of intensive research in order to eliminate these drawbacks, and it combines a base material and various calcium silicate plates with an adhesive as described later, and fully enhances the characteristics of the constituent materials. This paper proposes a non-combustible composite building material that enables improved mechanical strength, enhanced heat insulation, and improved design through compositing.

Further, to briefly explain the present invention, the first invention is a non-combustible composite in which a base material is attached to at least one surface of a core material via a cement latex mixture or an asphalt latex mixture. A building material, and a non-combustible composite building material in which a reinforcing sheet having a structure that allows an adhesive to be impregnated or passed between a core material and a base material is interposed between a core material and a base material.

An embodiment of the noncombustible composite building material according to the present invention will be described in detail below with reference to the drawings. FIG. 1 is an explanatory diagram showing a typical example of the noncombustible composite building material according to the present invention, and 1 is a calcium silicate plate, a calcium silicate-based molded product serving as a so-called core material, such as silica stone, silica sand, Molded products made from silicic acid containing one or more of diatomaceous earth, white clay, colloidal silica, and other silicic acid-containing substances, and calcareous material containing one or more of quicklime, carbide rhinoceros, cement, etc. Alternatively, it is a molded product made by adding one or more types of asbestos, pearlite grains, vermiculite, etc. to silicic acid and calcareous materials. of course,
In addition to the above-mentioned main components, the term also includes molded products containing well-known aggregates and the like, and molded products generally referred to as calcium silicate plates. 2 is a cement latex mixture layer or an asphalt latex mixture layer, which functions as an adhesive layer and a heat insulating layer. The above mixture has extremely strong adhesion to calcium silicate molded products. Although the theoretical basis for this is not yet clear, it is assumed that the above mixture contains a substance that binds to a part of the composition of the calcium silicate molded product.
Furthermore, such mixtures are flame retardant and also have an insulating function. That is, this is because a heterogeneous layer is formed between the base material and the core material, which will be described later, and the composition has a rubber-based adhesive layer or a similar function. The above cement latex mixture is an anionic latex whose main emulsifier is a sulfonate or sulfuric acid ester salt of a higher alcohol or its ether, mixed with polyoxyethylene (including propylene), an alkyne amine, to form a cationic latex. It is a slurry made by blending cement with a chemically modified substance, and is commercially available under the general trade name ``Cementex''. The asphalt latex mixture is a mixture of the above-mentioned anionic latex and an alkyneamine polyoxyethylene, which is then mixed with an asphalt emulsion, and is commercially available under the general trade name "Sandex". . 3 is a base material such as a metal plate, a plaster board, an asbestos cement board, an asbestos cement perlite board, a ceramic board, a calcium silicate board, etc.; examples of the metal board include a surface-treated steel plate, an aluminum plate, a stainless steel plate, a copper plate, etc. It means a well-known metal sheet material.
The thickness, size, and molding shape of this base material are arbitrary.

FIG. 2 is an explanatory diagram showing an embodiment of the noncombustible composite building material according to the second invention. Note that the description of parts corresponding to those in FIG. 1 will be omitted and the same reference numerals will be given. That is, the structure different from the first invention is that a reinforcing sheet 4 is provided in the adhesive layer/insulating layer interposed between the calcium silicate molded product and the base material. This reinforcing sheet is made of a type of glass fiber sheet, asbestos sheet, wire mesh, etc., and its main purpose is to provide secondary reinforcement to the core material. The structure of the sheet 4 is a woven fabric, a nonwoven fabric, or a mesh material through which the mixture 2 can be impregnated.

What has been described above is only one embodiment of the present invention, and the mixture and the base material may be provided on both sides of a calcium silicate plate as shown in FIG. 3, or the surface of the base material 3 as shown in FIG. It is also possible to use a substrate coated with a ricin coating or a mastic coating (not shown). Furthermore, as shown in FIG. 5, it is also possible to attach a plasterboard or plywood 5 to one side of the calcium silicate plate via cement text, and to construct the other side as described above. When a ricin coating 6 or mastic coating is provided on the base material, it has the effect of preventing even slight deterioration over time due to heat of the mixture, which has excellent weather resistance and heat resistance.

As mentioned above, the noncombustible composite building material according to the present invention is made by using a hard-to-adhere core material such as calcium silicate to strengthen it using an adhesive made of a cement latex mixture or an asphalt latex mixture that has excellent fire resistance and adhesive strength. Because it is integrated, it has a major feature of outstanding mechanical strength. Furthermore, since the adhesive is highly weather resistant, there is an advantage that the base material and the calcium silicate plate can be bonded for a long period of time without peeling. Furthermore, by interposing the above-mentioned mixture with high heat insulation properties between the calcium silicate board and the base material, deterioration due to high temperatures or heat is suppressed, and there is also the secondary effect of preventing thermal destruction and deterioration of the calcium silicate board. .

[Brief explanation of the drawing]

FIGS. 1 and 2 are explanatory diagrams showing one embodiment of the noncombustible composite building material according to the present invention, and FIGS. 3 to 5 are explanatory diagrams showing other embodiments. 1... Calcium silicate, 2... Cement latex mixture or asphalt latex mixture, 3... Base material, 4... Reinforcement sheet.

Claims (1)

[Scope of Claims] 1. A non-combustible product characterized in that a base material is attached to at least one surface of a calcium silicate plate through a layer of a cement latex mixture or an asphalt latex mixture that acts as an adhesive layer and a heat insulating layer. Composite building materials. 2. The noncombustible composite building material according to claim 1, wherein the base material is any one of a metal plate, a plaster board, an asbestos paper, an asbestos cement board, a calcium silicate board, an asbestos cement perlite board, a ceramic board, etc. 3 Claim 1 in which the base material is coated with ricin or mastic coating on its surface.
2. Noncombustible composite building material as described in Section 2. 4. At least one surface of the calcium silicate board is laminated and integrated with a reinforcing sheet that is impregnated with adhesive or has a structure that allows it to pass through, a cement latex mixture or asphalt latex mixture that acts as both an adhesive layer and a heat insulating layer, and a base material. A noncombustible composite building material characterized by: 5. The noncombustible composite building material according to claim 4, wherein the reinforcing sheet is a glass fiber sheet, an asbestos sheet, a nonwoven fabric, a wire mesh, or the like.