荷电聚砜中空纤维超滤膜的研究

荷电聚砜中空纤维超滤膜的研究王静荣吴光夏韩式荆云兆菁(,100085)以氯甲基化聚砜(CMPS)为原料,二甲基乙酰胺(DMAC)为溶剂,聚乙二醇为添加剂,研究了膜液组成和纺丝条件对膜性能的影响,选择适当的膜液组成和纺丝条件,可制得截留分子量为6万以上的中空纤维超滤膜,其截留率可达90%以上,用CMPS中空纤维膜经三甲胺水溶液处理后,可制得季铵化聚砜(QMPS)中空纤维荷正电超滤膜.超滤氯甲基化聚砜中空纤维膜O63LoebSourirajan,.,,.,.,,,,,.,.11.;2.;3.;4.;5.1实验部分1.1(CMPS),;(DMAC),;,;,UV-266;,.1.2CMPS-,1.1.3,0.2MPa,(f),::1997-03-13;:1997-06-28:,49,,176Vo1.17No.6199712MEMBRANESCIENCEANDTECHNOLOGYDec.1997f=(mL)(cm2)@(h)(1)(R%),,:R=-@100%(2)2结果与讨论2.12.1.1CMPS1.1,,,,,,,.[1,2].表1聚合物质量分数对膜性能的影响CMPSw/%d/mmD/mmf/mL#cm-2#h-1R/%4-28-1181.1400.25049.4293.514-28-5201.1270.26339.7394.374-28-9221.0440.27118.2698.222.1.22:1.18%;2.20%;3.22%,,,,2.2,,,,[3,4].2.22.2.1,,,2.2,,,,,,.2.2.23.3,,,.#52#17表2纺丝压力对膜性能的影响P/MPad/mmD/mmH/MPaf/mL#cm-2#h-1R/%10-11-10.021.540.270.8558.2493.9910-11-20.051.270.281.3048.1994.1610-11-30.101.080.401.4537.7094.97表3中空介质对膜性能的影响f/mL#cm-2#h-1R/%H/MPa10-11-248.1994.161.3010-14-441.6493.511.3010-14-5DMAC/H2O(20/80)38.8494.971.402.3CMPSQMPS,,45.,,,,,.表4CMPS中空纤维膜季铵化前后性能比较(Ñ)d/mmD/mm10-11-21.541.820.280.3310-14-41.221.350.310.3710-14-5DMAC/H2O(20/80)1.211.390.280.34表5CMPS中空纤维膜季铵化前后性能比较(Ò)H/MPaf/mL#cm-2#h-1R/%10-11-21.300.3848.1941.0594.1694.8210-14-41.300.5041.6428.5193.5196.3010-14-51.400.5038.8418.8994.9795.413结论1)CMPS,20~40mL#cm-1#h-1,690%CMPS.2),,CMPS.6:#53#3)CMPS,QMPS,.1,,..,1993,12(6):4322,..,1993,12(6):4443,,,..,1980,1(6):144,..,1981,1(2):1StudyonthechargedchloromethylatedpolysulfonehollowfiberultrafiltrationmembraneWangJingrong,WuGuangxia,HanShijing,Yunzhaojing(ResearchCenterforEco-EnvironmentalSciences,ChineseAcademyofSciences,Beijing100085)AbstractInthepaper,chloromethylatedpolysulfone(CMPS),polyethyleneglycol(PEG)andN,N-dimethylacetamide(DMAC)wereselectedtospinhollowfibermembrane.Theeffectsofspinningsolutioncompositionandseveralfactorsonperformanceofhollowfibermembranewerestudied.Thehollowfibermembranewithmolecularweightcutof60000overcanbemadebyse-lectingpropercompositionofspinningsolutionandpreparationcondition.Therejectionwas90%.Quaternizedpolysulfone(QMPS)ultrafiltrationmembranecouldbemadethroughdippingCMPSintosolutionoftrimethylamine.Keywordsultrafiltrationchloromethylatedpolysulfonehollowfibermembrane.97/0,1997927.97/0.18.,(),./0,.:,;,.顾久传#54#17