Ultraviolet light curable coating for protecting steel materials free of preliminary treatment

Abstract

The invention relates to an ultraviolet light curable coating for protecting steel materials free of preliminary treatment, which contains 1 wt% to 5 wt% of light initiator, 0.5 wt% to 1.5 wt% of assistant initiator, 0 wt% to 40 wt% of living oligomer, 20 wt% to 70 wt% of polyacrylic ester, 20 wt% to 55 wt% of reactive diluents, 1 wt% to 8 wt% of adhesion promoter and 0.1 wt% to 2 wt% of additionagent. The coating of the invention solves the problem of ahering the UV coating onto the steel materials without surface treatment by adopting a special structure, a low polymer containing polar groups and an adhesion promoter. All the performance indexes also meet the demand of current coating.

Description

technical field [0001] The invention relates to an ultraviolet curing coating for steel material protection without pretreatment. Background technique [0002] Due to the advantages of fast curing speed, high coating film quality, less environmental pollution and low energy consumption, UV-curable coatings have become an important part of the coatings industry. Its application fields are also expanding from traditional paper, wood, plastics, etc. to cast iron, carbon steel, alloys, glass, ceramics, etc. [0003] Especially for cast iron and carbon steel substrates, due to their large output and the need for frequent long-distance transportation and stacking, the demand and requirements for their protective coatings are also relatively high, and the application of light-curing coatings in this area will be greatly improved. Reduce the environmental pollution caused by the currently used solvent-based coatings and the problems of high energy consumption and large production s...

AI Technical Summary

Problems solved by technology

Moreover, some metal substrates cannot be subjected to severe pretreatment, such as some products with cultural relic value and fine patterns.

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