文献类型：期刊文献

英文题名：Preparation and characterization of PSf hollow fiber membrane from PSf-HBPE-PEG400-NMP dope solution

作者：Zhao, Long-Bao[1]; Xu, Zhen-Liang[1]; Liu, Min[1]; Wei, Yong-Ming[1]

机构：[1] State Key Laboratory of Chemical Engineering, Membrane Science and Engineering R and D Lab, Chemical Engineering Research Center, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China

年份：2014

卷号：454

起止页码：184

外文期刊名：Journal of Membrane Science

收录：EI(收录号：20140217175821)

语种：英文

外文关键词：Ionic liquids - Membranes - Phase separation - Polyethylenes - Pore size - Contact angle

摘要：Hyperbranched polyester (HBPE) was synthesized by melt polycondensation and the molecular weight of prepared HBPE was 5480. g/mol. Porous hollow fiber membranes were prepared via non-solvent induced phase separation (NIPS) from dope solutions composed of polysulfone (PSf), N-methyl-2-pyrrolidone (NMP), polyethylene glycol 400 (PEG400) and HBPE. Membrane morphologies, permeation performance, transient pure water contact angle and mechanical property of the prepared membranes were measured to investigate the effects of HBPE on membrane structures and properties. The addition of HBPE led to the coexistence of finger-like and sponge-like structures in the membranes. When the HBPE content increased from 0 to 3.0. wt%, there was a sharp decrease in contact angle. At the same time, the porosity, mean effective pore size, pure water flux and the breaking strength of membranes increased with the HBPE content. ? 2013 Elsevier B.V.