High-performance and single-component white waterborne adhesion primer and preparation method thereof

Abstract

The invention belongs to the field of coatings and particularly relates to single-component white waterborne adhesion primer and a preparation method thereof. The high-performance and single-component white waterborne adhesion primer comprises a part A and water, wherein the part A comprises components in percentage by weight as follows: 25%-30% of waterborne single-component polyurethane, 8%-10% of a waterborne acrylic emulsion, 5%-10% of waterborne silica sol, 0.5%-1.0% of an adhesion promoter, 3.9%-6.3% of a function auxiliary, 31%-45% of filler and 10%-15% of water. The problems of hot sticking, cold shortness, high probability of cracking through thick coating and difficulty in adhesion of an oily substrate of conventional single-component white primer are solved, and the high-performance and single-component white waterborne adhesion primer contains few volatile organic solvents and meets the environment-friendly requirement.

Description

technical field [0001] The invention belongs to the field of coatings, and in particular relates to a one-component water-based white adhesion primer and a preparation method thereof. Background technique [0002] With the increasing popularity of water-based wood coatings and the improvement of application technology, the terminal market has more and more requirements for the application of white wood coatings, especially wooden doors, cabinets, children's furniture, bookshelves, plus some flat furniture and so on. However, due to the problems of poor sealability, low hardness, poor fullness and high price of water-based wood coatings, the promotion and application of water-based wood coatings in the industry is limited to a certain extent, especially for difficult-to-use wood coatings such as large grease, many burrs, and heavy pigments. Closed substrates, such as Pinus sylvestris, rubber wood or MDF, etc., often require multiple constructions to seal the grease, burrs and...

AI Technical Summary

Problems solved by technology

The coating can solve the problem of poor adhesion, hot stickiness and brittleness of the paint film, and easy thick coating when the traditional one-component water-based white primer is applied to the oily primer, such as PU primer, PE primer, NC primer or UV primer. Cracking and other problems, and the content of volatile organic solvents is low, which meets the requirements of environmental protection

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