Studies on Surface Modification of PVDF Membranes by UV Grafted Acrylic Acid
Abstract: To improve the hydrophilic property for the traditional PVDF, acrylic acid was grafted onto the surface of PVDF membrane by UV irradiation grafting polymerization with benzophenone as photo-initiator. The static contact angle and water absorption ratio were used to study the changes of hydrophilic property of modified PVDF membranes, and the principal factors influenced the grating degree were discussed, such as the concentration of photo-initiator, irra-diation time. The results showed that the hydrophilic property of PVDF membranes was improved significantly, and with the increase of the concentration of photo-initiator, the degree of grafting increased first, then stayed stable in a certain range. We also used attenuated total reflection-Fourier transform infrared spectroscopy and scanning electron mi-croscopy to characterize the chemical structure and morphological changes of the original and modified PVDF membrane.
文章引用: 沈 鹏 , 区文仕 , 吴业辉 , 王希 , 汤建强 , 尹忠 (2013) 接枝丙烯酸对聚偏氟乙烯膜表面亲水改性的研究。 化学工程与技术， 3， 127-131. doi: 10.12677/HJCET.2013.34023
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