Toughened tile-like coating

Abstract

The invention discloses a toughened tile-like coating, which comprises the following main components in part by weight: 6 to 10 parts of methylcellulose, 50 to 80 parts of polyvinyl acetate emulsion, 250 to 320 parts of calcium hydroxide powder, 250 to 320 parts of calcite powder, 1 to 3 parts of pigment, 0.05 to 0.5 part of antifoaming agent and the balance of water. A preparation method comprises the following steps of: adding water in an amount which is two times that of the polyvinyl acetate emulsion into the polyvinyl acetate emulsion for diluting; adding the methylcellulose into the residual water, dissolving for 24 to 48 hours, dispersing, and standing for later use; adding the two kinds of solution into a dispersion machine for mixing, adding the pigment and the antifoaming agent, and dispersing; and adding the calcium hydroxide powder and the calcite powder, uniformly dispersing, and grinding to prepare the tile-like coating. The coating does not crack, and has water scrubbing resistance which can reach the national standard of an outer wall coating; and the coating has the advantages of smooth, firm and durable surface, water and fire resistance, low cost, long storage period and the like, and is easy to transport remotely.

Description

technical field [0001] The invention relates to a building decoration coating, in particular to a tempered porcelain imitation coating. technical background [0002] Traditional coatings are made of various resins, polymer emulsions and other adhesives as film materials, plus pigments, fillers, and various additives. Product quality must be achieved by membranes. In similar coatings, polyvinyl formal is generally used as a bonded film-forming material, such as the patent application No. 97106666.3 "Toughened Imitation Porcelain Coating", which is composed of polyvinyl alcohol, calcium carbonate, magnesium trioxide and silicon tetraoxide crystal hydration. compound, ammonium formate, aluminum silicate, 4'4-diaminostyrene disulfonic acid phenyl isocyanate, nonanoic acid, formaldehyde, ammonia and water. This kind of thick paint has no gloss, poor water resistance, weak adhesion, and cannot be washed by water; it contains pungent odor and slightly toxic substances, which enda...

AI Technical Summary

Problems solved by technology

This kind of thick paint has no gloss, poor water resistance, weak adhesion, and cannot be washed by water; it contains irritating odor and slightly toxic substances, which endanger people's health

However, thick coatings using other emulsions as film materials have high cost and high packaging costs, cannot be transported over long distances, have a small sales radius, and have a short storage period, generally 15 to 30 days, which is difficult for users to accept.