Preparation and characterization of PSf hollow fiber membrane from PSf-HSPE-PEG400-NMP dope solution

作者：Zhao, Long-Bao; Xu, Zhen-Liang^*; Liu, Min; Wei, Yong-Ming

来源：Journal of Membrane Science, 2014, 454: 184-192.

DOI：10.1016/j.memsci.2013.11.057

• Polysulfone
• Porous membranes
• Hyperbranched polyester
• Polyethylene glycol

Hyperbranched polyester (HBPE) was synthesized by melt polycondensation and the molecular weight of prepared FIBRE was 5480 g/mol. Porous hollow fiber membranes were prepared via non-solvent induced phase separation (NIPS) from dope solutions composed of polysullone (PSI), N-methy1-2-pyrrolidone (NMP), polyethylene glycol 400 (PEG400) and FIBRE. Membrane morphologies, permeation performance, transient pure water contact angle and mechanical property of the prepared membranes were measured to investigate the effects of FIBRE on membrane structures and properties. The addition of HUE led to the coexistence of finger-like and sponge-like structures in the membranes. When the FIBRE 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 HOPE content.

• 出版日期2014-3-15
• 单位华东理工大学; 化学工程联合国家重点实验室