Vacuum electroplating uv primer and preparation method thereof

Abstract

The invention provides a vacuum plating UV base coat. The base coat comprises, by weight, 40-60 parts of bis-functional polyurethane acrylic resin, 40-60 parts of epoxy acrylic resin, 10-15 parts of reactive diluent, 1-5 parts of photoinitiator, 5-20 parts of butyl acetate cellulose solution, 140-160 parts of organic solvent and 5.3-20.5 parts of other auxiliaries. According to the base coat, themoisturizing performance on plastic substrates of the vacuum plating UV base coat can be significantly improved through the mutual action of the epoxy acrylic resin and the butyl acetate cellulose solution, the base coat particularly has a better moisturizing effect on the plastic substrates with residual demolding agent, the surface coating performance of the vacuum plating UV base coat can be ensured when demolding agent removing process on the plastic substrates is not conducted to allow the base coat has excellent adhesion force, and the problems of the influence on the base coat and plastic substrate coating quality due to residual demolding agent, lengthening production line, increasing production cost, high rejection rate of products and the like are solved.

Description

technical field [0001] The invention relates to the technical field of vacuum electroplating UV primers, in particular to a vacuum electroplating UV primer and a preparation method thereof. Background technique [0002] In recent years, with the development of economy, plastics (ABS, GRP, RIM, EPPM, polyurethane, nylon) are widely used in industrial fields such as automobiles, household appliances, daily packaging and craft decoration as engineering decorative structural materials. In order to improve the surface decoration of plastic products, in order to create a metallic effect like gold, silver and copper, vacuum evaporation plating and vacuum sputtering are usually used in the industry to form a bright layer on the surface of the plastic substrate. Metal film, i.e. metallization of the plastic surface. [0003] The plastic substrate is primed to improve the quality of the metal film coating before vacuum evaporation or vacuum sputtering metal film is applied to the pla...

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Problems solved by technology

[0005] The purpose of the present invention is to provide a vacuum electroplating UV primer to solve the problems of affecting the coating quality of the primer and plastic substrate due to the residual mold release agent, lengthening the production line, increasing production costs, and high product defect rate.

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