A kind of super-yellowing-resistant high-hardness UV full-bright transparent topcoat and preparation method thereof

Abstract

The invention belongs to the technical field of UV paint, and provides a super-yellowing-resistant high-hardness UV full-bright transparent topcoat and a preparation method thereof. The super-yellowing-resistant high-hardness UV full-bright transparent topcoat consists of the following raw materials in parts by weight : 20-40 parts of bisphenol A epoxy acrylate, 10-20 parts of amino-modified epoxy acrylate, 20-40 parts of acrylate monomer, 3-5 parts of photoinitiator, 0.5-2 parts of additives; , the acrylate monomer is composed of isobornyl acrylate, neopentyl glycol diacrylate and three (2-hydroxyethyl) isocyanuric acid triacrylate in a mass ratio of 0.1-0.6:1:0.8-2; The additives are one or more of defoamers, wetting agents, dispersants, and anti-sedimentation agents. This ultra-yellowing-resistant high-hardness UV full-bright transparent topcoat not only has good fullness, adhesion and stain resistance, but also has excellent yellowing resistance and high hardness. It can be used on 3D printing patterns on dining tables, coffee tables, etc. .

Description

technical field [0001] The invention relates to the technical field of UV paint, in particular to a super-yellowing-resistant high-hardness UV full-bright transparent topcoat and a preparation method thereof. Background technique [0002] With the improvement of people's awareness of environmental protection, the use of non-renewable raw materials such as wood and stone is less and less. Therefore, the countertops of dining tables and coffee tables are increasingly replaced with renewable raw materials such as glass and synthetic stone. . At present, young people have become the mainstream consumer group, and they prefer products such as dining tables and coffee tables with simple patterns and single colors. The use of 3D printing technology to prepare patterns on dining tables, coffee tables, etc. has the advantages of environmental protection, high efficiency, uniform color, etc., and can meet the consumption needs of young people, so it is widely used. [0003] In order...

AI Technical Summary

Problems solved by technology

[0004] However, the existing UV paint has poor yellowing resistance, which will affect the color of these 3D printing patterns, and then affect the decorative effect of the 3D printing patterns. Moreover, the paint film hardness of the existing UV paint is generally only about 2H. Under the action of external force, it is easy to be damaged, and these 3D printing patterns cannot be firmly protected, which will affect the use of dining tables, coffee tables, etc.

Images