PVDF超滤膜的制备影响因素研究_魏永
- 木木木头小污师
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2019-03-30 20:06:31
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PVDF超滤膜的制备影响因素研究_魏永Vol.45No.9化工新型材料第45卷第9期NEWCHEMICALMATERIALS2017年9月欍欍欍欍欍欍欍欍欍欍欍欍欍欍欍欍欍欍欍欍欍欍氥氥氥氥科学研究PVDF超滤膜的制备影响因素研究魏永1赵威1江晓栋1姚维昊1董秉直2(1.常州大学环境与安全工程学院,常州213164;2.同济大学环境科学与工程学院,上海200092)摘要采用浸没沉淀相转化法制备了纯聚偏氟乙烯(PVDF)平板超滤膜,并对制膜条件进行了讨论,通过对膜的纯水通量、牛血清白蛋白溶液通量和截留率的测试来考察PVDF超滤膜的性能。结果表明:溶剂种类,聚合物浓度,致孔剂浓度,凝固浴的组成和温度,预蒸发时间,刮膜速度及刮膜厚度等因素对膜的制备均有较大影响。关键词PVDF,超滤膜,制膜条件StudyonthefactoreffectonthepreparationofPVDFultrafiltrationmembraneWeiYong1ZhaoWei1JiangXiaodong1YaoWeihao1DongBingzhi2(1.SchoolofEnvironmentalandSafetyEngineering,ChangzhouUniversity,Changzhou213164;2.CollegeofEnvironmentalScienceandEngineering,TongjiUniversity,Shanghai200092)AbstractApureflatPVDFultrafiltrationmembranewaspreparedbyimmersionprecipitationphaseinversion,andthemembranepreparationconditionswerediscussed.TheperformanceofPVDFwasinvestigatedbythetestofpurewaterflux,BSAsolutionfluxandrejectionrate.Theresultsshowedthatthesolventtype,polymerconcentration,theconcentra-tionofporeformingagent,thecompositionandtemperatureofthecoagulationbat
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