新型含氟聚合物防污涂层的制备及性能研究

Preparation and Properties Characterization of a novel untifouling Fluorinated coating

以不同体积比的反应单体甲基丙烯酸十二氟庚酯(DFMA),甲基丙烯酸甲酯(MMA)分别与3-烯丙基-5,5-二甲基海因(ADMH)聚合成无规共聚物涂层。红外光谱(IR),核磁1H谱和19F谱表征了聚合物涂层的分子结构;接触角测量仪和X射线光电子能谱(XPS)分析了共聚物涂层表面性能。通过动态模拟海上挂板实验,探讨了星球藻(Asterocapsa trochiscioides)在聚合物涂层表面的黏附情况。结果表明,低表面能的全氟烷基在涂层两面的分布差异明显,造成了涂层两面的疏水和黏附性有较大差别;随着含氟单体用量的增加,聚合物涂层两面的接触角增加,星球藻在涂层表面的黏附程度下降。

A series of fluorinated polyacrylate coatings were synthesized by using different volum monomers of dodecafluoroheptyl methacrylate（ DFMA）,acrylate（ MMA） and hydantoin halamine（ ADMH） as raw materials. The chemical structure of the prepared copolymer coatings were characterized by infrared spectroscopy（ FT- IR） and NMR. X- ray photoelectron spectroscopy（ XPS） and cantact angle（ CA） are used to abtain the surface chemical composition and hydro- oleophobic properties. Dynamic hangs experiments test the adheresion of Asterocapsa trochiscioides to films. Results indicates that The nonpolar group（- CF3） are tend to migrate to the coatings- air interface,resulting in large differences of contact angle and Asterocapsa trochiscioides adheresionbetween two side of films. With the increasing of DFMA content,the contact angle of the polymer- air interface and the polymer- glass interface of the copolymer films both got increased.. while adheresion of Asterocapsa trochiscioides decreased.