超支化聚酯树脂在有无光敏剂存在下UV固化涂膜性能

UV Curing Film Properties of Hyperbranched Polyester Resin with and without Photosensitizer

丙烯酰氧基化改性的超支化聚酯UV固化速度和涂膜交联密度有较大提高,体现了其优越性。较详细介绍了结构更完整的超支化聚酯——树型聚酯,以它制备的涂料具有高反应活性;丙烯酸酯化树型聚酯在无光敏剂存在下可实行UV固化,且其涂膜具有较好的性能,为不用光敏剂实现UV固化涂料作了有益的探讨。

The UV curing speed and film crosslinking density of acyloxy modified hyperbranched polyester are greatly enhanced. Hyperbranched polyester with complete structure—tree type polyester is introduced. The coatings with this polyester have high reactive activity. Acrylic esterification tree type polyester can be cured by UV without photosensitizer, and the film has good properties. The preparation of UV curing coatings without photosensitizer is explored.