JPS6294648A - Building substrate material and its production - 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 (Field of Industrial Application) The present invention relates to a construction base material and a method for producing the same, and in particular to applying a finishing coating material or paint to the surface of the construction material immediately after construction. This invention relates to a base material for construction that can be used for construction, and a method for producing the same.

(Prior Art) In recent years, the following materials have been proposed as this type of building base material.

(b) Synthetic resin bonding over the entire surface of the wooden board
f A11 solution or emulsion, methyl cellulose,
Resin paints such as polyvinyl alcohol, latex, vulcanized rubber solution, or paints mixed with inorganic material particles and/or powders are applied in an uneven pattern and then dried and solidified (U Kosho 53- 20563).

(b) A coating material consisting of a synthetic resin emulsion, silicate-containing hydraulic cement, and inorganic lightweight aggregate with an apparent specific gravity of 0.4 or less is applied to the surface of a wooden board to form an uneven rough surface (VF Kosho 58 -4749).

(c) A waterproof layer made of a synthetic resin emulsion, synthetic rubber latex, a mixture of butyl rubber and a history-r1 emulsion, or a mixed emulsion of polypropylene and bituminous material on the wood-based plate-like base material. and a mixture layer consisting of an inorganic binder, a foaming agent, and fat particles (Japanese Patent Publication No. 58-47575).

(Problems to be Solved by the Invention) All of these conventional techniques are capable of applying lath baseboards such as wood slats, plywood, waterproof paper, lath, etc., which are required for mortar painting of dyed products. The purpose is to save labor in the foundation process such as mortar undercoating, and it is obtained by forming a coating layer with excellent adhesion and adhesion to mortar on the surface of the base material. , gypsum plaster, dolomite plaster, etc.

Coating in architectural base materials using these conventional techniques
7M is no 8 in (a)! Material powder (i.e. mainly cement M), in (b) the main material is a silicate-containing hydraulic cement such as portland cement, silica cement, blast furnace cement, 7 lithium cement, etc., and in (c) portland cement, In addition to gypsum, ultra-fast hardening cement, high-alumina/high-gypsum fast-hardening cement, etc. can be used, but in any case, the surface coating layer is formed using cement as the main material. Therefore, these base materials will have a cement color (gray color).

However, in recent years, home tones or light-colored tones have become mainstream on the walls of houses. In order to comply with this, it is necessary to apply a white thread or light color finish (mortar finish, spraying is a finish) after applying these conventional base materials, but in this case, apply a similar color base coat. It is necessary to apply a thick finishing coat to prevent the underlying material color from being seen through, which impairs the simplification and labor-saving of the finishing process, which is the ultimate purpose of these conventional techniques. becomes.

In view of the circumstances surrounding the construction of buildings, the present invention has been developed to provide a building having a white coating layer, which can provide a finished surface with a white tone or a light color tone while achieving simplification and labor saving in the shaving process. The purpose of the present invention is to provide a base material and a method for manufacturing the same.

(Means for Solving the Problems) The present invention, devised to achieve the above object, consists of a base material and a white paint layer applied to the surface of the base material, and the white paint layer is made of white Portland cement. A construction characterized in that the main component is a hydraulic binder made of a mixture of cement or white Portland cement and ordinary Portland cement, and a mixed coating material made by mixing this with aggregate and a coating solution. It is a base material.

The present invention also provides white portland cement 5.~100
The main component is a hydraulic binder consisting of 95 to 0 parts by weight of ordinary Portland cement, and 10 to 500 parts by weight of aggregate and 1 to 100 parts by weight of resin bath'e (resin solid content). ) with water to prepare a mixed coating material, apply the mixed coating material to the surface of the substrate, and then dry and solidify the mixed coating material or cure and solidify it to form a white coating film 1G on the surface of the substrate. S!, an architectural base material that is characterized by the formation of It is a method of sending.

(Function) In the architectural base material according to the present invention, since the coating layer formed on the surface is mainly composed of white Portland cement or a mixture of this and ordinary Portland cement, the coating layer is is white in color.

(Detailed Description of the Invention) The base materials for the architectural base material according to the present invention include plywood, fiberboard, gypsum board, cement board, real particle board, wood cement board,
Appropriately use inorganic or rocky boards such as ALC boards, asbestos cement boards, calcium silicate boards, magnesium carbonate boards, resin boards, resin foam boards, or plate-like bodies made of mixtures or composites of inorganic and organic materials. I can do it. The present invention does not limit the number of materials for the base material.

The main component of the coating layer is a hydraulic binder made of white Portland cement or a mixture of white Portland cement and ordinary Portland cement, with aggregate and V-rotation (JL 78 liquid) mixed therein. The coating film is formed by adding 10 to 500 parts by weight of aggregate and 1 to 100 parts by weight of resin solution to a hydraulic binder consisting of 5 to 100 parts by weight of white Portland cement and 95 to 0 parts by weight of X-ray Portland cement. A mixed coating material is prepared by stirring and mixing the resin solids (resin solids) with water, and this is coated in a layer on the surface of the substrate using an appropriate coating device such as a roll coater, bar coater, or spraying device. It is done.

As mentioned above, the hydraulic binder which is the main component of the coating layer consists of 5 to 100 parts by weight of white Portland cement and 95 to 0 parts by weight of ordinary Boltland cement.In other words, white Portland cement is used alone or in combination with 5 parts by weight or more of white Portland cement based on the weight of Portland cement. Although it varies depending on the type and amount of aggregate mixed separately, when the amount of white Portland cement mixed with normal portolan cement is less than 5 parts by weight, the desired white coating layer can be stably formed on the base material. cannot be formed.

Further, instead of ordinary Portland cement, for early strength, ultra early strength Portland cement, medium heat Portland cement, mixed cement such as blast furnace cement, silica cement, fly ash cement, alumina cement, etc. may be used.

Aggregates to be mixed with the hydraulic binder include inorganic aggregates such as calcium carbonate, clay, fly ash, incineration ash, slag, sand, talc, limestone particles, silica particles, and crushed stone particles, polyethylene, and polystyrene. tlj, 6+ organic aggregate such as fat beads, vermiculite 1. Inorganic lightweight aggregates such as expanded stone, expanded clay, perlite, and shirasu balloons; synthetic resin foam beads such as expanded polyethylene, polystyrene, and urethane; and organic lightweight aggregates such as synthetic 8 (pulverized particles of fat foam). These aggregates can be used alone or in an appropriate mixture.The mixing amount of these aggregates is 10 to 500 parts by weight based on the main IR component and the hydraulic binder, and within this range. It is determined as appropriate by taking into account the specific gravity of the aggregate used. For example, when using inorganic or organic aggregate, the specific gravity is 2 or more, so if the mixing amount increases, the weight of the aggregate itself will increase. This increases the workability during transportation and construction, while reducing the number of mixed fractures, which helps reduce weight, but increases the amount of expensive cement used, which increases the price of the base material itself. In addition, since the specific gravity of inorganic or organic lightweight aggregate is less than 2, it is possible to reduce the weight of the base material itself by increasing the amount mixed, but if too much lightweight aggregate If this is mixed, the coating layer becomes brittle and tends to be easily scratched or chipped during transportation and construction.

The resin solution mixed into the hydraulic binder together with the aggregate includes vinyl acetate resin, vinyl chloride resin, acrylic 8 (fat), epoxy resin, synthetic resin such as ethylene-vinyl acetate resin, and acrylonitrile butanoene rubber (NBR). , butanoene acrylic rubber (M[3R), synthetic rubber latex such as styrene butanoene rubber (SBR), polyvinyl alcohol, methyl cellulose, etc. Emulgitane type products are preferably used, and these are used alone. or a mixture of a plurality of them as appropriate.

These resin solutions not only improve the mixing and adhesion of the main components, the hydraulic binder and aggregate, and strengthen the adhesion to the base material, but also waterproof the coating layer after drying and solidification. In order to achieve this purpose, 5 to 100 parts by weight (resin solid content, below) is added to the hydraulic binder, which is the main component. The same ratio is used in this specification). If the amount of resin solution mixed is less than 5 parts by weight, not only waterproofness but also adhesion to the base material and finish coating material cannot be expected, and if it exceeds 100 parts by weight, it will be costly. It is not possible to obtain a significant effect by simply inviting an increase in the amount of money.

In forming a coating layer by applying the mixed coating material on a substrate in a layered manner, the surface may be formed into an uneven shape, a rough surface shape, or a smooth surface. For example, when spraying on a base material, the surface of the coating layer becomes uneven when forming the coating material into a stuff shape, and when spraying the coating material into a lysine shape, the surface of the coating layer becomes uneven. , and when you want to get a flat painted surface, you can get a smooth coating layer,
With this, each desired painted surface can be easily obtained. Further, by appropriately combining spraying with the method of forming the coating material to form a coating layer having an uneven surface, a rough surface, or a smooth surface, the design properties thereof can be further improved. for example,
By applying only a colored coating to the surface of the uneven coating layer, the uneven surface can be expressed as a decorative surface as it is.

The base material whose surface is coated with a layer of the mixed coating material as described above is then inserted into a drying device to be dried and solidified or deposited and cured to form a white coating layer.

If necessary, a resin solution is applied to the surface of the base material using a coating device such as a roll coater 170-footer and dried to form a waterproof coating layer, and then the above mixed coating is applied to the surface of the waterproof coating layer. Materials can be painted to form a coating layer. Formation of a waterproof coating layer is highly desirable when the surface of the substrate is porous and not smooth.1. In other words, when a mixed coating material is applied directly onto a substrate with a porous surface, voids (
Air pockets) are formed and bubbles are generated, reducing the adhesive strength with the mixed coating material. The waterproof coating layer has an apparent smooth surface on the base material and substantially increases the adhesive area between the base material and the mixed coating material, thereby preventing the above-mentioned drawbacks and improving adhesive strength. It is.

Also, depending on the base material, water or alkali soluble components (acid) may be added.
However, the waterproof coating layer prevents these elution and prevents curing delay or curing inhibition due to water or alkali soluble components of the mixed coating material applied to the second layer. Contamination of mixed coating materials can also be prevented. Furthermore, it is possible to prevent water from permeating through the surface, thereby preventing warpage and rot of the base material due to water absorption and hygroscopic expansion caused by permeated water.

An arbitrary coloring material can be added and mixed to the mixed coating material as needed to color the coating layer in a desired color tone. For example, by applying a desired color tone in advance to match the color tone of the finish coating material, it is possible to easily apply a thin coat of the finish coating material, and it is also possible to change the color tone of the coating layer and the finish coating material. It is easy to apply different coatings.

(Example) The attached Figures 1 to 6 show examples of the construction base material according to the present invention. Figure 1 shows a white coating layer 2 formed on a base material 1 with a smooth surface. Figure 2 shows a waterproof coating layer 3 formed on a base material 1, and a white coating layer 2 formed thereon with a smooth surface, and Figure 3 shows a white coating layer on a base material 1. M
2' is formed with an uneven surface, and No. 4M is a waterproof coating layer 3 formed on the base material 1, and a white coating film E42° is formed on the waterproof coating layer 3 on the base material 1.
Figure 5 shows a white coating layer 2'' formed on the base material 1 with a rough surface, Figure 6 shows a waterproof coating layer 3 formed on the base material 1''. Then, the second part is white paint B.
These figures show IJ2'' formed with a rough surface.

(Effects of the Invention) Since the ffi Tsukigawa Chikujika ground material according to the present invention has a white coating layer formed on its surface, the surface color can be easily concealed even when finishing with white thread or light color. is,
A thin coat of finish coating material can be achieved. In other words, it is possible to simplify and save labor in the finishing process for white thread or light color.

Furthermore, since white Portland cement itself exhibits higher strength than ordinary Portland cement, the coating layer formed by using a considerable amount of this cement has high strength, and the coating layer itself is not easily damaged and is durable. In addition, it has excellent abrasion resistance, and its durability as a base material is also improved.

[Brief explanation of drawings]

Attached drawings ffi] to FIG. 6 are sectional views showing an example of the construction of a base material for construction according to the present invention. Explanation of symbols 1...Substrate 2...White coating layer with a smooth surface 2''...White coating layer with an uneven surface 2''...White coating layer with a rough surface 3.・・Waterproof coating layer Figure 1

Claims (7)

[Claims] (1) It consists of a base material and a white paint layer applied to the surface of the base material, and the white paint layer mainly contains a hydraulic binder made of white Portland cement or a mixture of white Portland cement and ordinary Portland cement. 1. An architectural base material, characterized in that it is formed from a mixed coating material made by mixing aggregate and a resin solution with the base material. (2) The main component is a hydraulic binder consisting of 5 to 100 parts by weight of white Portland cement and 95 to 0 parts by weight of ordinary Portland cement, and 10 to 5 parts by weight of aggregate to the main component.
00 parts by weight and 1 to 100 parts by weight of the resin solution (resin solid content) are stirred and mixed with water to prepare a mixed coating material, the mixed coating material is applied to the surface of the substrate, and then the mixed coating material is dried and solidified. Alternatively, a method for producing a base material for construction, which comprises curing and solidifying to form a white coating layer on the surface of the base material. (3) The method for manufacturing a base material for construction according to claim 2, characterized in that the white coating layer is formed to have an uneven surface. (4) The method for manufacturing a building base material according to claim 2, wherein the white coating layer is formed to have a rough surface. (5) The method for manufacturing a base material for construction according to claim 2, wherein the white coating layer is formed to have a smooth surface. (6) The method for producing a building base material according to claim 2, wherein an inorganic or organic lightweight aggregate is used alone or in any combination thereof as the aggregate. (7) A waterproof coating layer made of a resin solution is first formed on the surface of the base material, and the mixed coating material is applied to the waterproof coating layer to form a white coating layer. 2
The method for manufacturing the architectural base material described in Section 1.