Composite coating assistant

Abstract

The invention discloses a composite coating assistant. The composite coating assistant comprises, by mass, 10-15 parts of sodium polystyrene sulfonate, 10-15 parts of methyl methacrylate, 10-15 parts of polyacrylic acid, 5-10 parts of diethylene glycol, 5-10 parts of monoglyceride stearate, 5-10 parts of carboxymethyl cellulose, 25-30 parts of disodium ethylene diamine tetraacetate and 25-30 parts of modified starch. The composite coating assistant has the advantages of simple formula, use convenience, low cost, reduction of the cost of a coating while being used in the coating, good tank opening effect and brushing performance, dispersing, thickening and leveling effects, no layering phenomenon after long-time storage, very good fluidity, and effective overcoming of the disadvantages of bentonite in the coating.

Description

technical field

[0001] The invention relates to the technical field of composite coating additives, in particular to a phosphorus composite coating additive which plays the roles of dispersing, thickening and leveling in coatings. Background technique

[0002] In recent years, with the rapid rise of the building decoration industry, the application and demand of coatings, especially composite coatings, have increased, and the requirements for their quality have also become higher and higher. However, although the addition of bentonite in the paint can significantly increase the hiding power, prevent the paint from settling, agglomerating, and have the advantages of thickening and thixotropy, there are still some problems that are difficult to overcome in use, such as: poor leveling, Long-term storage will lead to stratification, high viscosity, etc. These problems are more prominent when used in latex paints. Therefore, how to effectively overcome the shortcomings of bentoni...