Membrane Science and Technology

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Preparation of PVDF hollow fiber membrane with abnormity morphology

Authors：

LIU Jie, WU Chunrui, LU Xiaolong*, GAO Qijun, JIA Yue, CHEN Huayan, WANG Xuan

Units： State Key Laboratory of Hollow Fiber Membrane Materials and Membrane Process, Institute of Biological and Chemical Engineering, Tianjin Polytechnic University, Tianjin, 300160, China

KeyWords： polyvinylidene fluoride (PVDF); solution induced phase separation; hollow fiber membrane with abnormity morphology

ClassificationCode：TQ028.8

year,volume(issue):pagination： 2012, 32(1):33-39

Abstract：

Polyvinylidene fluoride (PVDF) hollow fiber membrane with abnormity morphology was prepared by solution induced phase separation through special spinneret. The effects of the air gap distance and the shape of membranes on the properties of the membranes were investigated. It was found that: UF water flux, gas permeation coefficient, VMD water flux, pressure resistant coefficient, breaking strength and blow up pressure decreased with the increase in air gap distance; the breaking strength of triangular three-hole PVDF hollow fiber was much better than one-hole hollow fiber, the blow up pressure, pressure resistant coefficient and stability of triangular three-hole PVDF hollow fiber were the best of hollow fibers with abnormity morphology.

Funds：

国家高技术研究发展计划项目（2008AA06Z303）；高等学校博士学科点专项科研基金（20091208110003）；天津市重点基金课题（09JCZDJC26300）；天津市高校科技发展基金计划项目（20080507）.

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Reference：

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Preparation of PVDF hollow fiber membrane with abnormity morphology
LIU Jie, WU Chunrui, LU Xiaolong*, GAO Qijun, JIA Yue, CHEN Huayan, WANG Xuan

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