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The Filtration Properties for PEG Solutions of Different Structures Polysulfone Ultrafiltration Membranes

Authors：
Yan Hao, XuJian, Pan Guoyuan, Zhang Yang, Guo Min, Zhang Longgui, Miao Xiaopei,Liu Yiqun*

Units： Division of Material Science, SINOPEC Beijing Research Institute of Chemical Industry, Beijing 100013, China

KeyWords： Polysulfone; Ultrafiltration; Flux; Rejection.

ClassificationCode：TQ028.8

year,volume(issue):pagination： 2013,33(5):43-47

Abstract：

DMF、DMAc、NMP have been used as solvent for polysulfone, and water as non-solvent to produce ultrafiltration membranes with different structures. The filtration properties have been tested with PEG Solutions. The results showed that the fluxes of pure water for these membranes are determined with the holes’ structures on surface, and it increased with enlarging holes diameter. The rejection data showed that both screen and depth filtermechanism worked to PEG molecules, the rejection increased with decreasing the holes diameter and the volume of finger structures. Combined with the theoreticanalysis and the data from dynamiclightscattering of PEG solutions, we found out that the shape of PEG molecules changed dramatically near the holes on the surface of ultrafiltration membranes.

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AuthorIntro：

严昊(1984-)，男，安徽人，主要研究方向为聚砜超滤膜和静电纺丝方向。*通讯作者

Reference：

Polysulfone; Ultrafiltration; Flux; Rejection.

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