Low-yellowing material fading prevention UV primer and preparation method thereof

Abstract

The invention relates to a low-yellowing material fading prevention UV primer and a preparation method thereof. The UV primer comprises, by weight, hexafunctional aliphatic polyurethane acrylate, organic silicon modified trifunctional aliphatic polyurethane acrylate, bifunctional aliphatic polyurethane acrylate, ethoxylated trimethylolpropane triacrylate, 1, 6-hexanediol diacrylate, a photoinitiator, talcum powder, an ultraviolet light absorber, an antioxidant, a defoaming agent, a dispersing agent and an anti-settling agent according to specific parts. The photoinitiator comprises methyl benzoylformate and 2, 4, 6-trimethylbenzoyl-diphenyl phosphine oxide according to the mass ratio of 1: (0.1-0.5); and the ultraviolet light absorber is composed of a benzotriazole ultraviolet light absorber and a hindered amine ultraviolet light absorber according to the mass ratio of 1: (0.3-0.8). The UV primer has low yellowing, can prevent color fading of dyed wood and has excellent adhesive force, and the defects that the dyed wood is easy to change color and fall off in the production and use processes can be effectively avoided.

Description

technical field [0001] The invention belongs to the technical field of wood ware paints, in particular to a low-yellowing and anti-fading UV primer and a preparation method thereof. Background technique [0002] With the continuous development of wood products, especially wooden furniture, the amount of original wood is also decreasing. Therefore, in the field of wooden furniture, people gradually replace the original wood with technological wood, such as stained wood. [0003] However, stained wood is easy to fade due to ultraviolet radiation during production and use, thereby affecting the quality of stained wood furniture. And UV paint, especially the UV primer that is in direct contact with the surface of the stained wood, needs to be irradiated by an ultraviolet lamp to form a cured film after painting. In this way, when the UV lamp irradiates the UV primer, it will also irradiate the stained wood. surface, making stained wood more susceptible to discoloration. [00...

AI Technical Summary

Problems solved by technology

[0003] However, stained wood is easy to fade due to ultraviolet radiation during production and use, which in turn affects the quality of stained wood furniture

And UV paint, especially the UV primer that is in direct contact with the surface of the stained wood, needs to be irradiated by an ultraviolet lamp to form a cured film after painting. In this way, when the UV lamp irradiates the UV primer, it will also irradiate the stained wood. surface, making it easier to fade stained wood

[0004] Therefore, there is an urgent need to develop a kind of low yellowing performance, which can effectively prevent stained wood from fading during UV curing and use, and also has good UV primer with stained wood surface adhesion, so as to effectively avoid stained wood during production and use. Defects that are easy to change color and fall off during use

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