A 3d laser engraving high flexibility uv type pvd topcoat

Abstract

The invention relates to a 3D radium engraving high flexibility UV-type PVD topcoat, which is mainly made of the following components in parts by weight: 5-35 parts of high-functionality polyurethane acrylate, 5-30 parts of thermoplastic acrylate, reactive diluent 1-10 parts of photoinitiator, 0.1-5.0 parts of photoinitiator, 0.1-0.6 parts of auxiliary agent, 35-80 parts of diluent. The topcoat provided by the invention effectively solves the wide versatility problems such as the low grid size and low flexibility of the UV-curable vacuum coating coating, poor matching between the base of the UV-curing vacuum coating coating and the topcoat in the PU color paint. The top paint of the invention has good protection effect and extremely high flexibility, and the obtained paint film has the characteristics of high flexibility, high bending, excellent ring test performance, yellowing resistance and the like. It also has the characteristics of convenient operation, simple construction, room temperature curing, wide applicability, etc., which effectively improves the appearance effect and service life of electronic products.

Description

technical field [0001] The invention belongs to the field of chemical coatings, in particular to a 3D radium-carved high-flexibility UV-type PVD topcoat. The topcoat can be used for surface decoration or protection of vacuum coating workpieces of electronic products such as mobile phones, digital cameras, and tablet computers. Background technique [0002] With the development of plastic decoration technology, most of the original plastic products are extrusion or compression molding. During the heating and extrusion process, volatile impurities in the raw materials may escape to the surface, forming more craters, and other microscopic defects. , leading to low surface gloss and poor aesthetics. In addition, most conventional plastic parts are wear-resistant, solvent-resistant, low-performance, easy to scratch, fog, and surface damage. Therefore, it is necessary to decorate the surface of plastic parts and protection. It is formed by using a plastic substrate to coat a pri...

AI Technical Summary

Problems solved by technology

Solve the problem that the existing UV topcoat cannot be laser engraved, the laser engraving is cracked, the paint film layer behind the laser engraving is not effective, and the problem of bending and flying paint is poor.

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