Effects of Additives on Structure and Performance of Polyacrylonitrile Membrane
WANG Hui1, 2, CUI Mengbing1, 2, YAN Dongdong1, CHEN Gairong1, 2
1 College of Chemistry and Chemical Engineering, Xinxiang University, Xinxiang 453003; 2 Nano Carbon-Modified Membrane Technology Engineering Laboratory of Henan Province, Xinxiang 453003
Abstract: Polyacrylonitrile membranes were prepared by phase-inversion method. Polyvinylpyrrolidone (PVP-K30, PVP-K90), polyethylene glycol (PEG-2000, PEG-6000), small organic molecule glycol and inorganic salt lithium chloride (LiCl) were used as additives. The mass fraction of the additive was 3 wt%. The surface and sectional structure, water flux, porosity, water contact angle and BSA rejection of the polyacrylonitrile membranes were studied. The results showed that the polyacrylonitrile membrane with PEG-2000 had many large pores, the sectional structure was sponge-like. It had highest water flux value and porosity, which were 436 L/(m2·h) and 86%, respectively. The water flux value of the membrane with glycol was low, but the rejection rate of BSA had a highest value of 93%. The membranes with PVP and PEG showed good hydrophilicity, the lowest value of contact angle was 68°.
王辉, 崔梦冰, 闫冬冬, 陈改荣. 添加剂对聚丙烯腈膜结构和性能的影响[J]. 《材料导报》期刊社, 2018, 32(4): 555-558.
WANG Hui, CUI Mengbing, YAN Dongdong, CHEN Gairong. Effects of Additives on Structure and Performance of Polyacrylonitrile Membrane. Materials Reports, 2018, 32(4): 555-558.
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2018, Vol. 32 
