新型氟硅改性环氧丙烯酸超疏水防污涂层研究

Studies on Novel Fluorine/Silicone Modified Epoxy Acrylic Surplus Hydrophobic Antifouling Coating

采用自由基聚合法,合成了氟硅改性苯乙烯环氧丙烯酸树脂,其中硅以硅溶胶的形式,将无机网络引入到聚合物网络体系中,形成有机-无机杂化材料。通过对涂膜的附着力、耐冲击性、接触角等各项性能的研究,得到合成树脂的最佳配比为:软硬单体比为0.8,含氟单体含量为12%,环氧含量为10%,苯乙烯含量为10%,丙烯酸含量为6%。并且考察了无机硅溶胶对涂膜化学稳定性能的影响、涂层表面氟原子含量以及涂膜与水接触角。通过添加纳米SiO2,制备了具有微纳米阶层型结构的涂层,其与水的接触角可达150°,具有超疏水特性。

The title fluorine/silicone modified styrene epoxy acrylic resin was synthesized by radical poly- merization, in which silicon （as silica sol） containing inorganic networks was introduced into the organic net- work system forming a organi - inorganic hybrid system. Through tests of adhesion, impact resistance, and water contact angle, etc, an optimum formula for synthetic polymer was obtained ： hard and soft monomer ratio 0. 8, amount of fluoride monomer 12% , epoxy content 10% ,styrene content 10% , acrylic acid content 6%. The influence of the inorganic silica sol on chemical stability, and the influence of the content of fluorine atom on contact angle with water was investigated. By adding nano - SiO2 , a micro nano class structure of the coating with super- hydrophobic properties was developed, with water contact angle up to 150°.