KR20040046356A - Ceramic sand mortar composition for in and out-side wall of building and method of preparing the same - Google Patents

Abstract

PURPOSE: A pasting material for inner and outer walls of building using ceramic sand and its preparation method are provided, to improve durability and to prevent discoloration for a long time. CONSTITUTION: The pasting material comprises colored ceramic sand; an acryl emulsion resin; and a fluorinated polymer compound. The method comprises the steps of sintering a mixture comprising natural silica or clay, an inorganic pigment for ceramic ware and water glass at a temperature of about 800 deg.C and pulverizing the sintered one to prepare a colored ceramic sane; and mixing the colored ceramic sane with an acryl emulsion resin and a fluorinated polymer compound. The acryl emulsion resin is a methyl methacrylate-ethyl acrylate-acrylonitrile copolymer; and the fluorinated polymer compound comprises silanol and anionic and nonionic groups.

Description

Ceramic sand mortar composition for in and out-side wall of building and method of preparing the same}

The present invention relates to a building interior and exterior wall coating material and a method of manufacturing the same that is applied to the interior and exterior walls of the building thinly treated by plastering and spraying.

Such a method of manufacturing the wall covering material is known as Korea Patent Publication No. 1997-006209.

Conventional natural stone coating material is pulverized natural stone, such as granite, quartz stone, dolomite or feldspar to make powder and then to remove iron with an electromagnet, and to combine these stone powder by color, water-soluble synthetic resin emulsion solution in the formulation It was prepared through the step of adding, and mixing the water thereto to complete the stone mortar.

The natural stone coating material produced by the above method has a problem that the iron remains yellow because the iron cannot be completely removed from the stone powder, and the color of the wall is easily discolored and faded due to the weak weather resistance of the natural stone pigment. .

In addition, the natural stone coating material is fouling resistance to water contaminants, but there is a problem that can not always keep the wall surface clean because of poor fouling resistance to oily contaminants or dust.

In addition, the coating material using colored aggregates was colored at a low temperature (about 200 ℃) by mixing organic pigments in the crushed natural stone, which was a problem that is easily faded and discolored when exposed to sunlight, weather, and the like.

The present invention does not discolor or fade even after long-term exposure to daylight, rain or rain, and has excellent fouling resistance against aqueous or oily contaminants, and also improves the cleanability of contaminated walls. The purpose is to provide.

Hereinafter, the present invention will be described in detail.

The present invention is characterized by using colored ceramic sand prepared by calcining silica sand or clay with an inorganic pigment at a high temperature of about 800 ° C.

The colored ceramic sand according to the present invention is colored by firing a mixture of natural silica or clay, an inorganic pigment for ceramics, and a liquid water glass at a high temperature of about 800 ° C., and then finely pulverizing it.

In the present invention, the ceramic pigment for ceramics is stable to heat, so even when fired at a high temperature of about 800 ℃, the chemical composition of the pigment does not change, the liquid water glass is coated on the surface of the ceramic sand to prevent the leached inorganic pigment from eluting in water Do it.

The present invention provides a wall coating material prepared by adding an acrylic emulsion resin and a fluorine-based high molecular compound made of a copolymer of MMA (Methyl Meta Acrylate) / EA (Ethyle Acrylate) / AN (Acrylo Nitrile) to the colored ceramic sand. It relates to a manufacturing method.

In the present invention, the MMA of the acrylic emulsion resin component improves strength and durability, EA improves water resistance while lowering hardness, and AN improves elasticity.

In the present invention, the fluorine-based polymer compound provides oil repellency and water repellency at the same time, thereby acting to keep the wall surface clean for a long time.

The wall surface treated with the conventional waterproof coating material does not allow the penetration of the cleaning agent, making the wall surface difficult to clean.

However, the fluorine-based polymer compound not only imparts contamination resistance to aqueous and oily contaminants but also has affinity for a cleaning agent composed of water and a surfactant, thereby facilitating cleaning of the wall surface.

Referring to the components and composition ratio of the wall covering material according to the present invention in more detail as follows.

Below

ingredient Composition ratio (wt%)

1) acrylic emulsion resin (AK-1100-4) 14-18

(Copolymers of MMA / EN / AN)

2) Fluorine Compound (25% Concentration) (FC-759, 3M USA)

(2 to 5 as silanol, anionic and nonionic group)

Configured.)

3) Colored ceramic sand 83.345 ~ 75.25

4) Defoamer 0.01 to 0.1

5) Dispersant (polyacrylate dispersant) 0.15-0.5

6) Viscosity enhancer (Urethane Thickener) 0.025 ~ 0.06

7) PH regulator (urethane compound) 0.1 to 0.2

8) Texanol 0.2 ~ 0.5

9) Antibacterial, preservative 0.12-0.19

10) Freezing inhibitor (ethylene glycol) 0.05 to 0.2

100 wt%

Table 1 shows the results of comparing the properties of the ceramic wall coating material prepared according to the present invention with the conventional general stone wall coating material.

<Table 1>

division Room temperature standard Ceramic wall covering General stone wall Item unit Measurement result Measure density ㎏ / ㎡ 2.5 2.7 Solid content % 87 83 ± 2 Water absorption W ₂₄ [㎏ / ㎡h ^0.5 ] 0.1 0.4 Pollution Resistance (Recovery Rate) Motor Oil % 95 45 Carbon black (6%) minerals (94%) PH 8 to 10 9.0 9.0-9.9

The interior and exterior walls of the building finished with the wall covering material according to the present invention have excellent weather resistance, so that the color does not change or discolor even after a long period of time and the washability on the wall surface is excellent, thereby maintaining a clean and beautiful appearance.

In addition, since the wall covering material according to the present invention is made of ceramic sand fired at a high temperature, it provides a wall surface having excellent durability such as abrasion resistance, heat resistance and weather resistance compared to conventional natural stone coating material.

Claims (5)

A mixture of natural silica or clay, a mixture of inorganic pigment for ceramics and liquid water glass was calcined at a temperature of about 800 ° C. to prepare colored ceramic sand, and then acrylic emulsion resin and fluorine-based A method for producing an exterior wall coating material in a building, characterized in that the polymer compound is prepared by blending. The method of claim 1, wherein the acrylic emulsion resin is a copolymer of methyl methacrylate (MMA) / ethyl acrylate (EA) / acrylonitrile (AN). The method of claim 1, wherein the fluorine-based polymer compound is composed of silanol, anionic and nonionic groups (FC-759, 3M, USA). The method for producing an exterior wall coating material in a building according to claim 1, wherein another additive such as a film forming agent or a dispersing agent is added. In-building, exterior wall coverings comprising all of the following components: next Colored ceramic sand (Inorganic pigments and liquids for ceramics from natural silica sand or clay With water glass at a temperature of around 800 ℃ Pulverizing, calcining, colored) Acrylic emulsion resin (copolymer of MMA / EA / AN) Fluorine-based high molecular compound (FC-759, 3M USA)