Preparation method of environment-friendly strain-resistant external wall latex paint

Abstract

The invention relates to a preparation method of environment-friendly strain-resistant external wall latex paint. The preparation method is simple in process, low in production cost, safe, environmentally friendly and suitable for industrial production; by taking an organic silicone modified acrylate emulsion as the main raw material, the latex paint has good high-low temperature resistance, low surface energy and excellent water tolerance and weather resistance; an ionic emulsifier is embedded into a non-ionic emulsifier so as to increase the distance of reactive emulsifier ionic bonds on the surfaces of latex particles, and the non-ionic emulsifier has an electrostatic shielding effect, so that the electrostatic tension on the surfaces of the latex particles is decreased, the distance of reactive emulsifier ionic bonds on the surfaces of the latex particles is increased, and the latex paint has relatively high stability and good surface tension; the problem that shells widely spread to pollute the environment is solved, the latex paint has a fine texture, a pain film is replenished, and the latex paint is unlikely to precipitate, has excellent brushing property and is capable of adsorbing harmful substances such as formaldehyde and metal ions in air due to the porosity; and by taking deionized water as a solvent, the latex paint is safe, environmentally friendly, high in volume solid content, low in VOC, strong in adhesive force and excellent in water tolerance, and the thickness of the paint film can be increased.

Description

technical field [0001] The invention relates to the technical field of exterior wall latex paint, in particular to a preparation method of an environment-friendly and pollution-resistant exterior wall latex paint. Background technique [0002] Emulsion paint for exterior walls is a kind of coating with polymer emulsion as film-forming substance, and a kind of water-based coating formulated with synthetic resin emulsion as raw material, adding pigments, fillers and various additives. The main function of the exterior wall emulsion paint is to decorate and protect the building surface, so that the appearance of the building is neat and beautiful, so as to achieve the purpose of beautifying the urban environment, and at the same time, it can protect the exterior wall of the building and prolong its service life. [0003] After the construction of latex paint is completed and the volatiles are volatilized, the paint film remaining on the surface of the building is the effective ...

AI Technical Summary

Problems solved by technology

[0003] After the construction of latex paint is completed and the volatile matter is volatilized, the paint film remaining on the surface of the building is the effective component to protect the wall, which is usually measured by volume solid content; most of the exterior wall latex paints on the market currently have volume solid content measurement Low, poor adhesion, poor water and weather resistance, long-term exposure to the air is prone to problems such as peeling, cracking, discoloration, and powder removal; it also contains formaldehyde or benzene solvents and other components that pollute the environment; and the existing latex paint preparation method High cost, complicated process, and the production of harmful substances that pollute the environment, etc.

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