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Degassing performance of polyvinylidene fluoride hollow fiber membrane
Authors： GUO Peili, CHEN Huayan, Lü Xiaolong*, WU Chunrui, ZHANG Qinglei, LIU Jie
Units： Institution of Biological and Chemical Engineering, State Key Laboratory of Hollow Fiber Membrane Materials and Processes, Tianjin Polytechnic University, Tianjin, 300160, China
KeyWords： deoxygenation; PVDF; inner diameter; wall thickness; module length; surface morphology
ClassificationCode：TQ028.8
year,volume(issue):pagination： 2012, 32(4):6-10

Abstract：

The degassing performance of polyvinylidene fluoride (PVDF) hollow fiber membrane was studied in this paper with the purpose of improving deoxidizing efficiency. The influence of the inner diameter, wall thickness, module length and the surface morphology on the deoxidizing efficiency has been investigated. The result indicates that the inner diameter, the module length and the surface morphology of the membrane have a great influence on the deoxidizing efficiency. Higher inner diameter and longer module induce higher deoxidizing efficiency. The loose sponge structure of surface of membrane leads to higher deoxidizing efficiency. The effect of the wall thickness of PVDF membrane on the deoxidizing efficiency might be neglected. The hollow fiber membrane with internal coagulant of 70% DMAc, inner diameter of 0.3mm and wall thicknss of 0.15mm would be a better degassing membrane according to the deoxidizing efficiency and mechanics performance of membrane.

Funds：
天津市重点基金课题（09JCZDJC26300）；天津市科技计划项目（09ZCKFSH02600）

AuthorIntro：
郭培丽（1986-），女，河北石家庄人，硕士生，主要从事脱气膜的研究，guopeili163@163.com。*通讯联系人

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