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以多种丙烯酸酯类单体为原料合成羟基丙烯酸树脂,将硅酸乙酯部分水解缩聚制备聚硅氧烷,用硅氧烷对丙烯酸树脂接枝改性,制备出以丙烯酸树脂为主链、以具有水解特性及低表面能的有机硅为侧链的接枝共聚物,以此共聚物为基料,制备自抛光及低表面能复合型防污涂料。采用红外光谱、热重分析对接枝共聚物进行了表征,并测算了共聚物及制备的防污涂料涂膜的表面能。结果表明,合成的接枝共聚物与设计结构相符,其表面能达到23.63 mN/m,可用于防止海生物附着的防污涂料。
A variety of acrylate monomers as raw materials to synthesize hydroxy acrylic resin, ethyl silicate hydrolysis and polycondensation to prepare polysiloxane, acrylic resin with siloxane graft modified to acrylic resin as the main chain, A graft copolymer with side chain of silicone with hydrolytic properties and low surface energy is prepared from the copolymer as a base material, and self-polishing and low surface energy composite antifouling coatings are prepared. The grafted copolymer was characterized by FTIR and TG analysis. The surface energy of the copolymer and antifouling coating was also calculated. The results show that the synthesized graft copolymer is compatible with the designed structure and has a surface energy of 23.63 mN / m. It can be used to prevent the adhesion of marine organisms to antifouling coatings.