袁海宽,许振良,马晓华,魏永明,齐峻,曾义红

• 1:华东理工大学化学工程研究所化学工程联合国家重点实验室
• 2:上海吴泾化工有限公司

摘要(Abstract)：

以聚乙烯醇(PVA)为原材料,全氟磺酸(PFSA)为共混改性材料,以聚丙烯腈(PAN)中空纤维超滤膜为底膜制备了PVA/PAN、PVA-PFSA/PAN复合膜,并用于乙酸乙酯脱水。考察了共混涂膜液中PVA/PFSA配比,交联剂酒石酸(Tac)用量以及原料液温度与浓度对PVA/PAN、PVA-PFSA/PAN复合膜分离性能的影响。实验结果表明,Tac交联的PVA/PAN、PVA-PFSA/PAN复合膜均对水具有较好的分离选择性。共混涂膜液中PVA/PFSA质量比为1/1、Tac/PVA质量比为1/5时所制备的PVA-PFSA/PAN复合膜渗透汽化分离性能最佳。40℃下此复合膜用于分离98%(wt)的乙酸乙酯水溶液时,其渗透通量和分离因子分别为81.1g·m-2·h-1和1890。同样条件下,与交联PVA/PAN复合膜相比,交联PVA-PFSA/PAN复合膜的渗透通量显著提高。

关键词(KeyWords)： 聚乙烯醇;全氟磺酸;渗透汽化;乙酸乙酯-水溶液

Abstract:

Keywords:

基金项目(Foundation): 国家“十一五”科技支撑计划重大项目(2006BAE02A01);; 上海华谊(集团)公司-华东理工大学先进化学与化工技术研究中心基金资助(A200-8608)

作者(Author): 袁海宽,许振良,马晓华,魏永明,齐峻,曾义红

参考文献(References)：

• [1]Salt Y,Hasano-lu A,Din-er S.Sorption behavior and preliminary pervaporation results of cross-linked polyvinylalcohol and polydimethylsiloxane membranes prepared for the separation of water-ethylacetate mixtures[J].Chem Eng Commun,2003,190:564-572.
• [2]Salt Y,Hasano-lu A,Salt-et al.Pervaporation separation of ethyl acetate-water mixtures through a crosslinked poly[vinyl alcohol]membrane[J].Vacuum,2005,79[3-4]:215-220.
• [3]Shaban H I.A qualitative investigation on the importance of boundary layer in pervaporation separation of an aqueous organic reaction[J].J Appl Polym Sci,1998,70[12]:2361-2369.
• [4]Shaban H I.Hydrolysis of ethyl acetate:a pervaporation study[J].Eur Polym J,1998,34[7]:955-973.
• [5]David M O,Nguyen Q T,Néel J.Pervaporation membranes endowed with catalytic properties,based on polymer blends[J].J Membr Sci,1993,73[2-3]:129-141.
• [6]Vauclair C,Tarjus H,Schactzel P.Permselective properties of PVA-PAA blended membrane used for dehydrateion of fused oil by pervaporation[J].J Membr Sci,1997,125[2]:293-301.
• [7]LIU Wen-hui[刘文辉],LIU Xiao-ya[刘晓亚],YANG Cheng[杨成]et al.Preparation and properties of photocrosslinked chitosan/PVA blend films[光交联壳聚糖/聚乙烯醇共混膜的制备与性能][J].Journal of Wuxi University of Light Industry[无锡轻工大学学报],2002,21[4]:384-388.
• [8]ZHANG Ke-da[张可达],SONG Ke[宋柯],FAN Rong[范荣].Separation of ethanol-water mixture by pervaporation through the blend membrane of sodium alginate with PVA[海藻酸钠与PVA共混膜用于渗透汽化分离乙醇-水混合物][J].Polymer Materials Science and Engineering[高分子材料科学与工程],1998,14[1]:52-54.
• [9]FANG Du[方度],YANG Wei-yi[杨维驿].Perfluoro-Ion-Exchange Membrane-Preparation,Property and Applications[全氟离子交换膜――制法,性能和应用][M].Beijing[北京]:Chemical Industry Press[化学工业出版社],1993.
• [10]XU Hong-feng[徐洪峰],XU Lin[徐麟].Effects of solvents on the performances of perfluorosulfonated recast membrane[溶剂对全氟磺酸再铸膜性能的影响][J].J Chem Eng of Chinese Univ[高校化学工程学报],2006,20[6]:978-982.
• [11]LANG Wan-zhong[郎万中],XU Zhen-liang[许振良],SHI Wei[石卫]et al.Preparation of perfluorosulfonic acid[PFSA]solution from waste ion-exchange membrane F-8020[用废F-8020型离子膜制备全氟磺酸溶液][J].Environmental Protection of Chemical Industry[化工环保],2005,25[6]:466-468.
• [12]Kusumocahyo S P,Sudoh M.Dehydration of acetic acid by pervaporation with charged membrane[J].J Membr Sci,1999,161[1-2]:77-83.