文献类型：期刊文献

英文题名：An improved process to prepare high separation performance PA/PVDF hollow fiber composite nanofiltration membranes

作者：Liu, Jiu-Qing[1,2]; Xu, Zhen-Liang[2]; Li, Xin-Hai[1]; Zhang, Yao[2]; Zhou, Ying[2]; Wang, Zhi-Xing[1]; Wang, Xue-Jun[2]

机构：[1]Cent S Univ, Met Sci & Engn Coll, Changsha 410083, Peoples R China;[2]E China Univ Sci & Technol, Chem Engn Res Ctr, Shanghai 200237, Peoples R China

年份：2007

卷号：58

期号：1

起止页码：53

外文期刊名：SEPARATION AND PURIFICATION TECHNOLOGY

收录：;EI(收录号：20074310887313);WOS:【SCI-EXPANDED(收录号:WOS:000251183500010)】；

语种：英文

外文关键词：improved process; preparation; polyvinylidene fluoride; hollow fiber; nanofiltration membrane; interfacial polymerization

摘要：An improved process to prepare high separation performance polyamide (PA)/polyvinylidene fluoride (PVDF) hollow fiber composite nanofiltration (NF) membranes was presented. Conventional interfacial polymerization process to prepare composite NF membranes was done through submerging the support membrane in aqueous phase followed by in oil phase. The improved interfacial polymerization process was done by submerging the membrane into aqueous phase again after the conventional process. The experiment was done to prepare PA NF membrane on PVDF hollow fiber support membrane. Results showed that the membrane prepared through this improved process had better separation performance. Using this improved process, membrane structures were improved and the rejections of PA/PVDF hollow fiber composite NF membranes for Na2SO4, MgCl2, KCl, NaCl, PEG600 and PEG 1000 were 92.3%, 7.0%, 9.5%, 14.2%, 88.4% and 89.3%, respectively. (c) 2007 Elsevier B.V. All rights reserved.