含氟丙烯酸酯共聚物的合成及其涂膜表面疏水、疏油性能研究  

Study on synthesis of fluorinated acrylate copolymer and surface hydro-oleophobic properties of the copolymer films

作　　者：周耿槟[1] 文秀芳[1] 皮丕辉[1] 蔡智奇[1] 程江[1] 杨卓如[1] 

机构地区：[1]华南理工大学化学与化工学院,广东广州510640

出　　处：《电镀与涂饰》2010年第8期50-53,共4页Electroplating & Finishing

摘　　要：以单体甲基丙烯酸甲酯、丙烯酸丁酯、丙烯酸、含氟(甲基)丙烯酸酯为原料,通过改变氟碳链长度、氟单体含量以及添加方式等因素,合成了一系列的含氟丙烯酸酯共聚物。利用表面接触角测试仪、红外光谱仪和多功能光电子能谱仪表征了共聚物涂膜的表面疏水、疏油性能以及表面化学成分,探讨了其影响因素。结果表明,共聚物涂膜表面疏水、疏油性能与其表面化学成分密切相关;使用长氟碳链的氟单体、增加氟单体用量以及采用在反应后期一次性加入氟单体的方法均有利于提高涂膜表面的疏水、疏油性能;当全氟辛基乙基甲基丙烯酸酯的质量分数为25%时,所得涂膜表面的氟元素质量分数达到44.284%,对水、对正十六烷的接触角分别达到127°和65°。A series of fluorinated acrylate copolymers were synthesized by using monomers of methyl methacrylate, butyl acrylate, acrylic acid and fluorinated （meth）acrylate as raw materials and by varying the length of fluorocarbon chain, content and addition mode of fluorinated monomer, etc. Surface hydro-oleophobic properties and chemical composition of copolymer coatings were characterized by contact angle test, infrared spectroscopy and multifunctional photoelectron spectroscopy. The result proved that the surface hydro-oleophobic properties of coatings are closely related to chemical composition. Increasing content of fluorinated monomer, using fluorinated monomer with long fluorocarbon chain and adding once for all fluorinated monomers at late stage of reaction are all helpful to increase surface hydro-oleophobic of the coatings. When the mass fraction of perfluoroctylethyl methacrylate is 25%, the mass fraction of fluorine in the coating is up to 44.284%, the water contact angle and hexadecane contact angle reach 127° and 65°, respectively.

关 键 词：含氟丙烯酸酯 共聚物 疏7KI陛 疏油性 接触角 

分 类 号：TQ630.1[化学工程—精细化工]