抗污透明氟硅共聚物涂层的制备及性能

发布时间：2018-08-23 13:13

【摘要】：用溶液聚合法合成了具有低表面能的含氟无规共聚物,即聚[2-(全氟辛基)乙基甲基丙烯酸酯-r-3-(丙烯酰氧基)丙基三甲氧基硅烷][P(FOEMA-r-APTMS)]以及聚[2-(全氟辛基)乙基甲基丙烯酸酯-r-甲基丙烯酰氧基丙基三乙氧基硅烷][P(FOEMA-r-MPTES)]。它们被配制成不同质量浓度的溶液并喷涂到玻璃表面制备成抗污涂层。利用FTIR、1HNMR表征了聚合物的化学结构,利用耐磨仪、接触角测试仪、原子力显微镜(AFM),考察了单体种类和物质的量比、聚合物溶液质量浓度以及处理湿度对涂层性能的影响。结果表明,P(FOEMA-rMPTES)和P(FOEMA-r-APTMS)涂层在摩擦200次后,前者的水接触角比后者要高约30°,含氟单体与含硅单体最佳投料物质的量比为1.5,聚合物质量浓度为10 g/L时,处理湿度为60%时,涂层疏水性最好且有较好的抗污垢性能,而且涂层的透明度在95%以上和耐磨次数达200次。
[Abstract]:Fluorinated random copolymers with low surface energy were synthesized by solution polymerization. Poly [2- (perfluorooctane) ethyl methacrylate -r-3- (acryloyl) propyltrimethoxysilane] [P (FOEMA-r-APTMS)] and poly [2- (perfluorooctane) ethyl methacrylate] [P (FOEMA-r-MPTES)]. They were prepared into solutions of different mass concentrations and sprayed on glass to form antifouling coatings. The chemical structure of the polymer was characterized by FTIR ~ 1H NMR. The effects of monomer type, mass concentration of polymer solution and treatment humidity on the properties of the coating were investigated by means of wear resistance tester, contact angle tester and atomic force microscope (AFM). The results show that the water contact angle of P (FOEMA-rMPTES) and P (FOEMA-r-APTMS) coatings is about 30 掳higher than that of the latter after 200 times friction, the optimum ratio of fluorine monomer to silicon monomer is 1.5, the mass concentration of polymer is 10 g / L, and the humidity is 60%. The coating has the best hydrophobicity and good anti-fouling performance, and the transparency of the coating is over 95% and the wear resistance is up to 200 times.
【作者单位】：中国科学院广州化学研究所广东省电子有机聚合物材料重点实验室中国科学院纤维素化学重点实验室;中国科学院大学;
【基金】：广东省自然科学基金项目(2016A030313163) 广州市科技计划项目(201607010244) 广州市珠江新星(201506010031)~~
【分类号】：TB306;TQ317

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