JPS61266373A - Manufacture of glazed inorganic construction material - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] <Industrial application field> The present invention relates to a method for manufacturing glazed inorganic building materials.

<Conventional technology> Traditionally, glazed inorganic building materials mainly consisted of china clay molded bodies.
It is known that the surface is glazed and then fired, or the cement molded body is the main body and a low melting point glaze is applied to the surface and then fired.

However, in the former case, extrusion molding is generally used as a means of forming the molded product, but there are problems such as the need for an extruder with a considerably high horsepower and the difficulty of achieving uniform quality. A related problem is that industrial mass production of large-sized wall panels and the like is almost impossible.

On the other hand, in the latter case where cement molded bodies are the main product, various methods such as paper forming method and dry method can be adopted, and while there is no quality control problem at the molding stage as mentioned above,
There is a fatal problem that the cement molded body deteriorates considerably due to the heat during glazing firing, and a decrease in strength is unavoidable. Various improvement measures have been attempted, such as the development of low melting point glazes and the addition of water for curing after firing. At present, no fundamental solution has been reached.

Problems to be solved by this invention In view of the above-mentioned problems, the present invention was made for the purpose of providing a method for manufacturing a glazed inorganic building material that is easy to manufacture, has a homogeneous material, and has sufficient strength. be.

<Technology that led to the solution of the problem> This invention is based on an organic clay composite 1ζ obtained by replacing or inserting an ionic or polar monomer between the layers of a clay mineral having a layered crystal structure, a lightweight aggregate, and a heat-resistant Add synthetic aggregate, bulking material, inorganic and/or organic fibers, and further add the necessary amount of water and mix uniformly to form a slurry. The slurry is made into paper to produce a base plate, and the base plate is dried and then heated. The gist of this invention is a method for producing a glazed inorganic building material, characterized in that the monomer is subjected to a polymerization reaction and primary hardened, and after molding, glazing is applied and fired.

<Function> Clay minerals with a layered crystal structure used in this invention include kaolin minerals and montmorillonite minerals.

And, between the layers of clay minerals that have a layered crystal structure,
H2= CH〈N H3 or CH,= CH−4NH Nato's i? An organic viscous composite is obtained by replacing or inserting a polar monomer such as a polar monomer or vinyl alcohol.

As a means of obtaining this organoclay complex, the clay is dispersed in water, and the hydrochloride of the above monomer ([CHt=CHhecynoNHs]cl-[cH2="-<E:"]C
l-ate), the monomer hydrochloride is ionized in the solution and undergoes ion exchange with the inorganic cations of the clay mineral, yielding an organic-clay composite.

This mixing and ion exchange reaction can be carried out by connecting to the production (papermaking) line. For example, the above two materials are mixed and reacted in a mixing tank, and the reaction product is transferred as it is to the pulper of the papermaking machine. Can be mixed with other materials.

Then, the above organoclay composite is polymerized by heat, ultraviolet irradiation, etc. as shown in FIGS.
Next, let it harden.

In addition, FIG. 1(a) shows the state before polymerization, and FIG. 1(b) shows the structure after heating polymerization, where 1A shows the clay layer and 1B shows the monomer.

Next, the above organoclay composite is treated with perlite, lightweight aggregates such as synthetic inorganic porous granules, heat-resistant aggregates such as andesite, fillers such as calcium carbonate, inorganic fibers such as asbestos, glass fibers, and/or pulp. Organic fibers are added, and a necessary amount of water is added, and the mixture is uniformly mixed to form a slurry. As shown in FIG. 2, an original sheet is formed using a conventionally known paper-making apparatus 1o.

In Fig. 2, 2 is a vat filled with raw material slurry, 3 is a round cylinder for papermaking, 4 is a blanket belt, and 5 is a machine for winding up the raw material film onto the blanket belt. It's a drum.

After the film is formed on the drum 5 to a predetermined thickness, the molded body is cut open and flattened out from the drum 5, and cut into a predetermined shape to form the original shape.

Incidentally, instead of the above-mentioned paper-making method, it is also possible to perform paper-making by a so-called fourdrinier method.

Next, this original plate is dried naturally or in a drying oven to evaporate some moisture, and then heated in a heating oven to polymerize the monomer added to the clay mineral and develop the strength of the molded product. .

Then, for example, in the case of a wall board, this plate material that has developed strength is subjected to shaping processes such as mortises and tenons at the joints, and then the resulting molded product is glazed and fired. As the glaze, a normal high melting point glaze may be used, or a low melting point glaze (800'C to 900C) may be used.

During this firing, the clay minerals are also fired at the same time as the glaze is fired, thereby producing a strong wallboard material.

At this time, the monomer added to the clay mineral will be burned out by heat, but the clay mineral itself can be sintered and integrated to create a building material with sufficient strength.

<Example> Clay-organic composite Asbestos Pulp Perlite Filler Viscous 5o (4) 551030-■
25 (to) 5 5 10
3025 The above-mentioned material was made into a sheet using a paper making machine, and a 12 m thick plate with an embossed pattern on the surface was obtained by pressing.

After preliminary drying, this is heated in an atmosphere of 80° C. or higher for 5 minutes or more to polymerize and harden. Next, this was cut, joined, jointed, glazed, dried, and fired at a temperature of about 1000° C. for 10 hours or more to obtain a wall material in the form of a wall. This plate-shaped wall material had a bending strength of 100 keZc11% and a specific gravity of 1.5.

<Effects> As explained above, this invention uses clay minerals to which monomers have been added as the main raw material, mixes necessary aggregates and water, and forms plates by papermaking, so that when manufacturing original plates, The quality of the original plate can be made uniform, and the productivity of the base plate can be significantly increased, and large-sized wall boards can be easily manufactured.
This makes it possible to obtain extremely strong strength during primary forming, making the forming process before glazing and firing easier.Also, during glazing and firing, the clay minerals themselves are sintered and integrated, further improving the strength and making it easier to use lightweight aggregates. By adding it, it can be made into a lightweight and strong building material, and by adding a glaze to the surface, it can be made into a building material with excellent weather resistance and durability.

[Brief explanation of drawings]

FIGS. 1(A) and 1(B) are explanatory views of the operation of the present invention, and FIG. 2 is an explanatory view of the apparatus used to carry out the present invention. Ryo/IfJ 72'lil

Claims (1)

[Claims] (1) An organic clay composite obtained by substituting or inserting an ionic or polar monomer between the layers of clay minerals with a layered crystal structure, including lightweight aggregate, heat-resistant aggregate, filler, inorganic and/or Add the organic fibers and further add the necessary amount of water and mix uniformly to make a slurry. The slurry is made into paper to produce a base plate. After drying the base plate, the monomer is polymerized by heating to cause primary curing. A method for producing a glazed inorganic building material, which comprises glazing and firing after forming.