Modified silicone-PVDF composite hollow-fiber membrane preparation and its application in VOC separation

被引：0
|
作者：
Zhen, Hanfei [1 ]
Jang, Steven M. J. [2 ]
Teo, W.K. [1 ]
Li, K. [3 ]
机构：
[1] Department of Chemical and Environmental Engineering, National University of Singapore, Singapore 119260, Singapore
[2] Centre for Advanced Water Technology, Innovation Centre, Blk 1, 16 Nanyang Drive, Singapore 637722, Singapore
[3] Department of Chemical Engineering, Imperial College London, University of London, SW7 2AZ, United Kingdom
来源：
Journal of Applied Polymer Science | 1600年 / 99卷 / 05期
关键词：
Polydimethylsiloxanevi-poly(vinylidene fluoride) (PDMS vi-PVDF) composite membranes were prepared using asymmetric PVDF hollow-fiber membranes as the substrate where a very thin layer of silicone-based coating material was deposited via a developed dip coating method. The preparation of the composite membranes under various conditions were investigated. In the optimal coating procedure; homogenous and stable oligo-PDMSvi coating layers as thin as 1-2 μm were successfully deposited on the surface of PVDF membranes. The developed PDMS- vi-PVDF composite membranes were applied for separation of a wide variety of volatile organic compounds (benzene; chloroform; acetone; ethyl acetate; and toluene). The results showed that the PDMSvi-PVDF hollow-fiber composite membranes that had been developed exhibited very high removal efficiency (>96%) for all the VOCs examined under favorable operating conditions. © 2005 Wiley Periodicals; Inc;
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页码：2497 / 2503
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