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《Journal of Functional Polymers》 2008-04
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Effects of Small Molecular Alcohols on the Coagulation Kinetics,Morphology and Properties of PVDF/PFSA Blend Membranes

LANG Wan-zhong1,GUO Ya-jun1,XU Zhen-liang2,YUAN Guo-lin2(1.Department of Chemistry,Shanghai Normal University,Shanghai 200234,China; 2.Chemical Engineering Research Center,East China University of Science and Technology,Shanghai 200237,China)  
The effects of four small molecular alcohols(methanol,ethanol,2-propanol and 1-butanol) on poly(vinylidene fluoride)(PVDF)/perfluorslulfonic acid(PFSA) blend membranes were investigated.The results indicate that precipitation rate of dope solution and pure permeation flux(J_W) of ultrafiltration(UF) membrane increase with the concentration of ethanol in the dope solutions.For four different small molecular alcohols,the precipitation rates of the dope solutions are similar in the beginning and then vary greatly after 20 s.The UF membrane using 2-propanol additive has the highest pure water permeation flux of the four UF membranes.SEM images indicate that the UF membrane prepared from the bore fluid with 5% ethanol has a better lumen and porous morphology.
【CateGory Index】: TQ320.721
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【Citations】
Chinese Journal Full-text Database 3 Hits
1 Lang Wanzhong~1,Xu Zhenliang~1,Shi Wei~2,Tong Wei~1 (1.Chemical Engineering Research Center,East China University of Science and Technology,Shanghai 200237,China;2.Shanghai Chlor-alkali Chemical Co.Ltd.,Shanghai 200241,China);Preparation of Perfluorosulfonic Acid(PFSA)Solution from Waste Ion-exchange Membrane F-8020[J];Environmental Protection of Chemical Industry;2005-06
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3 SUN Liqing, QIAN Ying, LIU Shuxiu, GAO Yixuan, YAO Shizhong (College of Environment & Energy Engineering, Beijing Polytechnic University, Beijing 100022, China);Study of polyvinylidene difluoride sulfonate polysulphone co-blend ultrafiltration membrane[J];Membrane Science and Technology;2001-02
【Co-citations】
Chinese Journal Full-text Database 10 Hits
1 GU Xiao-yu~1, SUN Ben-hui~2(1.College of Material Science & Engineering, Beijing University of Chemical Technology;2.P.O.BOX 52, Beijing University of Chemical Technology, Beijing 100029, China);AFFECTING FACTORS FOR COMPATIBILITY OF POLYMERS IN POLYMER ALLOY MEMBRANE[J];Polymeric Materials Science & Engineering;2003-06
2 GU Xiao-yu,SUN Ben-hui(College of Material Science & Engineering,Beijing Universityof Chemical Technology,Beijing 100029,China);MODIFICATION ON POLYMER MEMBRANE MATERIALS BY MEANS OF POLYMER ALLOYED[J];Polymeric Materials Science & Engineering;2005-06
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4 YUAN Hai-kuan1, XU Zhen-liang1, MA Xiao-hua1, WEI Yong-ming1, QI Jun1,2, ZENG Yi-hong1,2 (1. State Key Lab of Chemical Engineering, Chemical Engineering Research Center, East China University of Science and Technology, Shanghai 200237, China; 2. Shanghai Wujing Chemical Co. Ltd., Shanghai 200241, China);Pervaporation Separation of Ethyl Acetate-Water Solutions through the Polyvinyl Alcohol Membranes Modified by Perfluorosulfonic Acid[J];Journal of Chemical Engineering of Chinese Universities;2009-01
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8 LU Yan~(1,2),YU Shui-li~1,SUN Xian-da~3,CAI Bao-xiang~1(1.Department of Municipal and Environmental Engineering,Harbin Institute of Technology,Harbin 150090,China;2.Department of Chemistry,Daqing Petroleum Institute,Daqing 163318,China;3.Daqing Oil Field E&P Research Institute,Daqing 163012,China);Research of Performances for the Organic Membrane Modified by Inorganic Material[J];Environmental Science;2007-02
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【Secondary Citations】
Chinese Journal Full-text Database 1 Hits
1 YU Zhihui, QIAN Ying, FU Li, ZHANG Xiaoyan, GAO Yixuan(Department of Chemistry & Environmental Engineering, Beijing Polytechnic University, Beijing?100022, China);Research on the PVDF/PAN blend ultrafiltration membrane[J];MEMBRANE SCIENCE AND TECHNOLOGY;2000-05
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