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Preparation of polyvinylidene fluoride blood separate hollow fiber membrane
Authors: Yajing Li, Kunpeng Tian,Xiaolong Lv
Units: The institute of Biology &Chemistry, Tianjin Polytechnic University, Tianjin 300160,China
KeyWords: polyvinylidene fluoride; dry-wet phase inversion method; additive; hollow fiber membrane
year,volume(issue):pagination: 2011,31(1):35-40

In this thesis, polyvinylidene fluoride (PVDF) hollow fibers membrane are fabricated by using dry-wet phase inversion method. The results showed that membranes morphology structure became looser with the increase of PEG concentration, which leaded to increase of water fluxes, the rejection of BSA over 98% , and good mechanical properties. As the PVP concentration in the spinning dope increasing, the membrane structure tended to loose, mechanical properties decreased significantly, however, the water fluxes decreased and the rejection increased, due to the densification effect. The total contents of PEG and PVP maintained the same and changed the ratio of them. With the proportion of PVP in the additive increasing, pure water flux increased at first, then decreased due to densification effects, and bubble point, break pressure, breaking strength and tensile elongation decreased. With the PVP content in the additive from 0% to 28%, the rejection of BSA decreased from 98.0% to 64.1%, and remained around 60%, when the proportion of PVP in the additive increased.


李亚静,女(1983-),河北石家庄人,硕士研究生,主要从事血液分离用PVDF中空纤维膜的制备研究,E-mail: duck10625@yahoo.com.cn; 通讯联系人,吕晓龙(1964-),教授,主要从事中空纤维膜材料与膜过程研究,E-mail: luxiaolong@263.net

[1] 唐克诚,李谦,王瑞,等.血液透析膜材料的研究进展[J].医疗设备信息,2007,22(8):49-51.
[2] Panu Sukitpaneenit, Tai-Shung Chung, Molecular elucidation of morphology and mechanical properties of PVDF hollow fiber membranes from aspects of phase inversion, crystallization and rheology[J], Journal of Membrane Science, 2009, 340: 191-204.
[3] M. L. Yeow, Y. T. Liu, K. Li, Morphological study of poly(vinylidene fluoride) asymmetric membranes: Effects of the solvent, additive, and dope temperature[J], Journal of Applied Polymer Science, 2003, 92(3):1782-1789.
[4] Lei Shi, Rong Wang, et al, Fabrication of poly(vinylidene fluoride-co-hexafluropropylene) (PVDF-HFP) asymmetric microporous hollow fiber membranes[J],  Journal of Membrane Science, 2007, 305 (1-2):215–225.
[5] 吕晓龙.聚偏氟乙烯中空纤维膜纺丝添加剂的研究.[J].天津工业大学学报, 2005,24(5):1-4.
[6] 王献德, 武春瑞, 吕晓龙. 聚醚砜血浆蛋白分离中空纤维膜的研制[J]. 膜科学与技术,2009, 29(1): 36-40.
[7] Bai-hai Su, Ping Fu, Qiu Li, et a1. Evaluation of polyethersulfone highflux hemodialysis membrane in vitro and in vivo. [J]. Journal of Materials Science: Materials in Medicine, 2008,19(2):745–751


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