Effect of poling time on filtration properties of PVDF membranes treated in intense electric fields

被引：0
|
作者：
M. T. Darestani
T. C. Chilcott
H. G. L. Coster
机构：
[1] University of Sydney,School of Chemical and Biomolecular Engineering
来源：
Polymer Bulletin | 2014年 / 71卷
关键词：
Electric field; Polyvinylidene fluoride; Microfiltration; Microstructure; Separation performance;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
It was found that treatment in intense electric fields (i.e., electrical poling) changed the microstructure and filtration performance of polyvinylidene fluoride (PVDF) microfiltration membranes. The effect of temperature, sample size and time on the electrical breakdown of membranes was studied. It was shown that the hydraulic permeability and flux of the membranes can be tuned by changing the poling time. The effect of electrical poling on rejection and molecular weight cutoff was more significant. It was also found that the electrical breakdown of PVDF membranes is a gradual process and a long exposure time to an intense electric field can have adverse effects on the separation performance of the membranes.
引用
收藏
页码：951 / 964
页数：13
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