Study of grafting sodium p-styrene sulfonate onto surface of polypropylene hollow fiber membrane
JIN Ge1,2, WEI Jun-fu1,2, WANG Ao1, GUO Yan-fen2, WANG Hui-cai1
1. School of Environmental & Chemical Engineering, Tianjin Polytechnic University, Tianjin 300387, China; 2. State Key Laboratory of Separation Membranes and Membrane Processes, Tianjin Polytechnic University, Tianjin 300387, China
Abstract: A novel kind of hollow fiber membrane is prepared through grafting sodium p-styrene sulfonate onto the surface of polypropylene hollow fiber membrane,which is initiated by ultraviolet irradiation using benzophenone as photosensitizer.The influences of the concentrations of sodium p-styrene sulfonate monomer and photosensitizer on the grafting degree are studied.Attenuated total reflection-Fourier transform infrared spectroscopy (ATR-FT-IR) and scanning electron microscopy (SEM) are used to characterize the surface chemical compositions and morphologies of both the original and grafted polypropylene hollow fiber membrane.The measurement methods of water contact angle and permeation flux of hollow fiber membrane are used to characterize the hydrophilic changes of hollow fiber membrane surface.The water contact angle of grafted polypropylene hollow fiber membrane decreases to 46° from 110° of non-grafted membrane when the grafting degree is 13.3%.The permeation flux of grated membrane increases to 102 L/(m2·h) when the grafting degree is 9%.The hydrophilicity of polypropylene hollow fiber membrane is improved dramatically by grafting.
金戈, 魏俊富, 王翱, 郭艳芬, 王会才. 聚丙烯中空纤维膜表面接枝苯乙烯磺酸钠的研究[J]. 现代化工, 2018, 38(2): 98-101.
JIN Ge, WEI Jun-fu, WANG Ao, GUO Yan-fen, WANG Hui-cai. Study of grafting sodium p-styrene sulfonate onto surface of polypropylene hollow fiber membrane. Modern Chemical Industry, 2018, 38(2): 98-101.
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