| 全氟磺酸浓度对聚氯乙烯-全氟磺酸中空纤维共混超滤膜性能的影响 |
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| 引用本文： | 程亮,许振良,魏永明,袁海宽,宁文娟.全氟磺酸浓度对聚氯乙烯-全氟磺酸中空纤维共混超滤膜性能的影响[J].净水技术,2010,29(4):40-43. |
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| 作者姓名： | 程亮 许振良 魏永明 袁海宽 宁文娟 |
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| 作者单位： | 华东理工大学化学工程研究所膜科学与工程研发中心,上海,200237 |
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| 摘 要： | 以聚氯乙烯(PVC)为膜材料,N,N-二甲基乙酰胺(DMA)为溶剂,聚乙烯吡咯烷酮(PVP)及全氟磺酸(PFSA)为共混改性材料,采用湿法纺丝制备了不同荷电密度的PVC-PFSA中空纤维共混超滤膜。PFSA在制备的共混膜中能够以较稳定的形式存在,膜水通量可达153 L/(m~2·h·bar)。磺酸基团的引入,使PVC-PFSA中空纤维共混超滤膜对无机盐产生一定程度的截留,对2 mmol/L的MgSO_4和NaCl溶液的截留率分别达15.8%和7.79%。
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| 关 键 词： | 聚氯乙烯 全氟磺酸 共混膜 超滤 无机盐 |
Effect of Perfluorosulfonic Acid(PFSA)Content on the Performance of Polyvinyl Chloride-Perfluorosulfonic Acid(PVC-PFSA)Hollow Fiber Blend Ultrafiltration Membrane |
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| Cheng Liang,Xu Zhenliang,Wei Yongming,Yuan Haikuan,Ning Wenjuan.Effect of Perfluorosulfonic Acid(PFSA)Content on the Performance of Polyvinyl Chloride-Perfluorosulfonic Acid(PVC-PFSA)Hollow Fiber Blend Ultrafiltration Membrane[J].Water Purifcation Technology,2010,29(4):40-43. |
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| Authors: | Cheng Liang Xu Zhenliang Wei Yongming Yuan Haikuan Ning Wenjuan |
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| Affiliation: | (Membrane Science and Engineering R＆D Lab, Chemical Engineering Research Center,East China University of Science and Technology, Shanghai 200237, China) |
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| Abstract: | Charged PVC-PFSA hollow fiber blend ultrafiltration membrane were prepared by using polyvinyl chloride （PVC） as membrane material, N, N-dimethylacetamide （DMA） as solvent, polyvinylpyrrolidone （PVP） and perfluorosulfonic acid （PFSA） as additives. PFSA existed in the membrane with a stable status. Membrane flux reached 153 L/（m2·h ·bar）. With the introduction of sulfonic acid group, the rejection rate of 2 mmol/L MgSO4 and NaC1 can be as high as 15.8 % and 9.2 %. |
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| Keywords: | polyvinyl chloride perfluorosulfonic acid blend membrane ultraliltration salt solution |
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