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UV-curable fluorinated polycarbonate polyurethane with improved surface properties
Journal of Coatings Technology and Research ( IF 2.3 ) Pub Date : 2020-03-10 , DOI: 10.1007/s11998-020-00329-0
Yan Yuan , Jihang Li , Yanmao Dong , Hui Miao

A series of UV-curable fluorinated polycarbonate polyurethanes (FCPUAs) were synthesized by modifying polycarbonate polyurethane with 2-(perfluorohexyl)ethanol (PFHE) and glycidyl methacrylate (GMA). The structures of FCPUAs were analyzed with 1H NMR and FTIR. Different contents of FCPUAs were blended into non-fluorinated polycarbonate polyurethane as fluorinated additives. The water and oil contact angles of the films were investigated by contact angle measurement, and the results indicated that an extremely low concentration of FCPUAs could produce a highly hydrophobic and oleophobic coating. The X-ray photoelectron spectroscopic analysis showed that the coating surface was rich in fluorinated species. Besides, the films containing FCPUAs also had great tensile strength, hardness and adhesion.

中文翻译:

具有改善的表面性能的可紫外线固化的氟化聚碳酸酯聚氨酯

通过用2-(全氟己基)乙醇(PFHE)和甲基丙烯酸缩水甘油酯(GMA)对聚碳酸酯聚氨酯进行改性,合成了一系列可UV固化的氟化聚碳酸酯聚氨酯(FCPUAs)。用1 H NMR和FTIR分析FCPUA的结构。将不同含量的FCPUA掺入非氟化聚碳酸酯聚氨酯中作为氟化添加剂。通过接触角测量研究了膜的水和油接触角,结果表明,极低浓度的FCPUA可以产生高度疏水和疏油的涂层。X射线光电子能谱分析表明,涂层表面富含氟化物。此外,含有FCPUA的薄膜还具有很大的拉伸强度,硬度和附着力。
更新日期:2020-03-10
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