Environment-friendly ageing-resistant top facing coating

Abstract

The invention belongs to the field of building materials, and discloses an environment-friendly ageing-resistant top facing coating. The top facing coating is prepared from the following raw materials in parts by weight: 20-60 parts of deionized water, 0.1-0.2 part of a defoamer, 40-80 parts of organic silicon modified acrylic emulsion, 0.1-0.5 part of a bactericide, 1-3 parts of a coalescing agent, and 0.1-0.2 part of a thickening agent, and is prepared by the following steps: uniformly mixing the deionized water, the defoamer, the bactericide and the organic silicon modified acrylic emulsion, and adding the coalescing agent and the thickening agent to the mixture to be uniformly stirred to prepare the finished product coating. The preparation method of the top facing coating takes the organic silicon modified acrylic emulsion as a base stock, and introduces the organic silicon group to effectively increase the coating hardness and the density, so that for the coating, the water-absorbing quality is reduced, adhesion and permeability of contaminants are reduced, the ageing resistance is improved, the service life is effectively prolonged, and clean environment is kept.

Description

[0001] technical field [0002] The invention belongs to the field of building materials, and relates to a high-gloss aging-resistant water-based paint for a building paint finish, in particular to an environment-friendly and aging-resistant finish paint. Background technique [0003] The finish paint refers to the construction of the building wall, after the primer is finished, a layer of paint is applied to achieve the effect of dustproof and scrub resistance. After the finish paint in the prior art is finished, it needs to stand for a period of time to disperse the volatile substances, so as to reduce the harm to people, but these volatile substances still enter the atmosphere; in addition, due to the traditional The hardness and density of the top coating are not high, and the water absorption is strong, causing the pollutants to easily adhere and penetrate into the surface of the coating, affecting its appearance and reducing the service life. Contents of the inventio...

AI Technical Summary

Problems solved by technology

The finish paint in the prior art needs to stand for a period of time after the construction is completed, so that the volatile substances are dispersed, so as to reduce the harm to people, but these volatile substances still enter the atmosphere; in addition, due to the traditional The hardness and density of the top coating are not high, and the water absorption is strong, causing pollutants to easily adhere and penetrate into the surface of the coating, affecting its appearance and reducing the service life