Vacuum electroplating uv primer and preparation method thereof

A vacuum electroplating and primer technology, which is applied in primers, coatings, polyurea/polyurethane coatings, etc., can solve the problems of affecting the coating quality of primers and plastic substrates, high product defect rates, and increased production costs. Achieve excellent adhesion and coating performance, good wetting effect, and improve wettability

CN109135548BActive Publication Date: 2021-02-09东莞大宝化工制品有限公司 +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Publication Date
2021-02-09

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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.
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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...

Examples

preparation example Construction

[0022] A preparation method of vacuum electroplating UV primer, comprising the steps:

[0023] (1) stirring and mixing the difunctional urethane acrylic resin, epoxy acrylic resin, reactive diluent and part of the organic solvent;

[0024] (2) After the step (1) is completed, add the photoinitiator, the butyl acetate cellulose solution, other auxiliary agents and the remaining organic solvent for stirring and mixing.

[0025] Further, the preparation method of vacuum electroplating UV primer, comprises the steps:

[0026] (1) The difunctional urethane acrylic resin, epoxy acrylic resin, reactive diluent and part of the organic solvent are stirred and mixed for 10-30min at 500-2000rpm / min, wherein the stirring speed can be 500rpm / min, 2000rpm / min , 800rpm / min, 1000rpm / min, stirring time can be 10min, 30min, 14min, 20min;

[0027] (2) After the completion of step (1), add photoinitiator, butyl acetate cellulose solution, remaining organic solvent and other auxiliary agents to ...