Water-based exterior wall coating and preparation method thereof

Abstract

The invention discloses a water-based exterior wall coating. The water-based exterior wall coating is prepared from the following raw materials: a butadiene styrene rubber emulsion, polyamide, kaolin powder, a flatting agent, lignocelluloses, magnesium phosphate, polysiloxane, glass fiber, aluminum silicate fiber, hydroxylation fiber resin, polyether sulfone resin, polysorbate, sodium hexametaphosphate, an organic silicone emulsion, an epoxy silane modified silicone sol, cross-linked polyethylene, butyl peroxybenzoate, sodium silicate, melamine polyphosphate, pentaerythritol, silicon dioxide, a sterilization preservative, a film-forming aid, waterborne polyurethane resin, acrylate, tung oil, polyvinyl alcohol, light calcium carbonate, talcum powder, gypsum powder, titanium dioxide, fluororesin, Ni, Zn and water. The water-based exterior wall coating contains the components such as Ni and Zn, so that the water-based exterior wall coating has high temperature resistance and corrosion resistance, meets the coating requirements of various places, is free of toxic organic solvents and free of pollution, and has the advantages of no crack on a coating surface and high adhesion.

Description

technical field [0001] The invention relates to a water-based coating for exterior walls and a preparation method thereof, belonging to the technical field of coatings. Background technique [0002] In recent years, from the viewpoint of environmental problems, the transition from organic solvent-based paints to water-based paints has been progressing. In addition, coatings are generally required to have excellent coating properties such as water resistance, alkali resistance, abrasion resistance, and weather resistance. [0003] Water-based coatings are coatings that use water as a dispersion medium and thinner. Compared with organic solvent-based coatings, water-based coatings not only reduce the emission of volatile organic solvents, but also save resources and energy (energy consumption is required to produce solvents), and are convenient. Transport and storage. With the enhancement of people's awareness of environmental protection, the relevant environmental protectio...

AI Technical Summary

Problems solved by technology

The main disadvantage of this kind of coating is that the elasticity of the coating film is easy to age, the hardness is not good, and it cannot effectively protect the strength of the bottom layer of the wall, resulting in cracking and falling off of the wall surface, which not only affects the appearance of the building, but also cracks on the wall surface, causing the wall surface to crack and fall off. water leakage