摘要: 采用接枝共聚的方法,即环氧和丙烯酸反应,环氧开环的同时生成带有羟基的丙烯酸单体,加入引发剂结合另外 2种丙烯酸单体,在催化剂的作用下接入有机硅,制得有机硅环氧丙烯酸树脂。讨论了环氧树脂的用量对涂膜性能的影响、涂料的水解特性,并进行了实海挂板实验。结果表明:当环氧的用量为 10%时,制备的防污涂料与水的接触角达到 133°,附着力 1级;有机硅/环氧改性丙烯酸树脂制得的防污涂料在海水中能够稳定地水解,兼具低表面能和自抛光的特性,实海挂板实验结果表明,涂料具有良好的防污性能。
关键词:
防污涂料,
低表面能,
自抛光,
有机硅
Abstract: To prepare the title self-polishing antifouling coatings, a graft copolymerization method was proposed. Through the reaction of epoxy and acrylic acid, an acrylic monomer with hydroxyl groups was prepared, which was then, together with two other acrylic monomer and initiator, grafted with silicone at the preseuce of catalyst to form the silicone epoxy acrylate resin. The effects of epoxy dosage on coating performance and the hydrolysis characteristic of the film was discussed. Sample panels were tested in the real marine water. The results showed that 10% of the epoxy gave the best hydrolysis characteristics in laboratory dynamic simulation experiments with water contactangle 133° and adhesion grade 1. In the meantime the low surface energy and self-polishing silicone antifouling coatings also provided good anti-fouling performance in static sea water immersion.
Key words:
antifouling paints,
low surface energy,
self-polishin
陈美玲, 冯树涛, 张羽生, 杨 莉, 高 宏. 有机硅低表面能 /自抛光海洋防污涂料的制备[J]. 涂料工业, 2013, 43(6): 19-22.
Chen Meiling, Feng Shutao, Zhang Yusheng, Yang Li, Gao Hong. Preparation for Low Surface Energy/Self- Polishing Silicone Marine Antifouling Coating[J]. Paint & Coatings Industry, 2013, 43(6): 19-22.