A kind of preparation technology of high stability waterborne paint

Abstract

The invention discloses a preparation process of a high-stability water-based coating. The high-stability water-based coating is composed of the following components in parts by weight: 80-120 parts by weight of water-based resin, 7-12 parts by weight of nano-calcium carbonate, and 3-9 parts by weight of film aid, 0.5-1.5 parts by weight of preservative, 8-12 parts by weight of talcum powder, 0-24 parts by weight of pigment, 0.4-1.2 parts by weight of thickener, 0.2-0.6 parts by weight of dispersant, 0.1-0.6 parts by weight of foaming agent and 40-60 parts by weight of deionized water. The structure of the present invention is scientific and reasonable, and it is safe and convenient to use. The prepared water-based paint has the best storage stability, and is not prone to precipitation and stratification during long-term storage. The thawing stability is the best, and no flocs will appear after freezing and thawing. The pH value of the prepared water-based coating is more neutral and less corrosive.

Description

technical field [0001] The invention relates to the technical field of water-based paints, in particular to a preparation process of high-stability water-based paints. Background technique [0002] Water-based coatings include water-soluble coatings, water-diluted coatings and water-dispersible coatings. Water-soluble coatings use water-soluble resins as film-formers, represented by polyvinyl alcohol and its various modified products. In addition, there are Water-soluble alkyd resin, water-soluble epoxy resin and inorganic polymer water-based resin, etc., water-based coatings need to go through material selection, stirring, crushing and grinding, secondary feeding and stirring, and filtration and screening in the process of production and packaging; [0003] At present, when the existing water-based paints on the market are used, the water-based paints are prone to precipitation and stratification during the long-term storage process, and the water-based paints are placed in...

AI Technical Summary

Problems solved by technology

[0003] At present, when the existing water-based paints on the market are used, the water-based paints are prone to precipitation and stratification during the long-term storage process, and the water-based paints are placed in a warm room when the external temperature is low, which is easy to cause Flocs appear inside the water-based paint, which affects the use of water-based paint;

[0004] Moreover, when the existing water-based paint grinder is in use, when the paint raw material is ground, it is prone to incomplete grinding, and the incompletely ground paint raw material will be directly discharged along with the raw material, requiring staff to filter the ground paint, And repeated grinding, resulting in a reduction in the efficiency of coating raw material grinding, affecting the processing and production efficiency of water-based coatings

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