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Preparation and characterization of PES/SPSF blend nanofiltration membranes

Authors： ZHONG Jin-cheng1,2, HE Ying2, QIN Shu-hao1,3,CHEN Zhuo2,ZHANGKai-zhou1,3,YAO Yong1,3, ZHANG Min-min1,3

Units： 1.Material Technology Innovation Base of Guizhou,Guiyang 550014,China; 2.School of Chemistry and Materials Science,Guizhou Normal University,Guiyang 550001,China; 3.National Engineering Research Center for Compounding and Modification of Polymeric Materials,Guiyang 550014,China

KeyWords： polyethersulfone;sulfonatedpolysulfone;nanofiltration membranes; evaporation;desalination rate

ClassificationCode：TQ028.8

year,volume(issue):pagination： 2016,36(2):1-6

Abstract：

Polyethersulfone(PES)/Sulfonatedpolysulfone(SPSF) blend nanofiltration membranes were prepared using phase inversion technique combined with solvent evaporation process. The influence ofpolyether sulfone/Sulfonatedpolysulfone blended mass ratio,mass fraction of ethanol and evaporation temperature and time in ovenon desalination rate and water yield of membrane were studied respectively. The results demonstrated thatincrease of the content of sulfonatedpolysulfone could improve the density of membrane,which contributed to the increase of desalination rate. By adding ethanol and DMAc as solvent systemsinto the blending system, the membraneresulted in the rejection of 2g/L Na2S04(57%) solution and water yield((16 L/(m2•h)) , with 15% ethanol(w/w), evaporation inside the oven temperature(70℃) and the evaporating time (3 min). When evaporating temperature was increased to 100℃ with other process conditions remain unchanged,the rejection of 2g/L Na2S04solution enhanced to 65%.

Funds：

贵州省工业攻关计划（黔科合GY字〔2014〕3010）；贵州省科技计划（黔科合省合〔2014〕7004）；贵州省高层次人才培养计划（黔科合人才〔2015〕4038）

AuthorIntro：

第一作者简介：钟金成(1988-)，男，贵州省贵阳市人，硕士研究生，主要从事环境化学及水处理技术方面的研究.

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