邓力,马文中,徐荣,刘京妮,钟璟

• 1:常州大学石油化工学院江苏省绿色催化材料与技术重点实验室
• 2:常州大学材料科学与工程学院江苏省环境友好高分子材料重点实验室
• 3:中国石油化工股份有限公司上海石油化工研究院

摘要(Abstract)：

酰胺类溶剂的分离回收与处理是工业领域中一个亟待解决的重要问题,采用渗透汽化(PV)技术分离该体系时,所采用的高分子膜材料需要有较好的溶胀性和耐久性。采用两步法制备了一种均苯型聚酰亚胺膜,通过测试不同单体配比下制备的膜的溶胀性及拉伸强度考察其耐溶剂性能。研究结果表明:当均苯四甲酸二酐(PMDA)与二氨基二苯醚(ODA)摩尔比为1.018:1时,聚酰亚胺膜的溶胀度在30%以下,拉伸强度损失小于20%;制备的PMDA-ODA/Al_2O_3型复合膜,在40℃时,渗透汽化分离DMF/H_2O((90/10)%(wt))和DMAc/H_2O((90/10)%(wt))体系的渗透通量分别为149.4和59.0 g×m~(-2)×h~(-1),分离因子分别为21.5和187.1,具有较好的分离效果;复合膜连续运行100 h数据表明,DMAc/H_2O体系渗透通量稳定在210 g×m~(-2)×h~(-1)左右,分离因子保持在15左右,具有较好的稳定性。

关键词(KeyWords)： 聚酰亚胺膜;耐溶剂性;渗透汽化;酰胺溶剂;分离性能

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金(21406018,21276029);; 中国石油化工股份有限公司科技项目(216078);; 江苏省先进催化与绿色制造协同创新中心(常州大学);; 江苏省产学研前瞻性联合研究项目(BY2016029-01)

作者(Author): 邓力,马文中,徐荣,刘京妮,钟璟

参考文献(References)：

• [1]SHAO Hui(韶晖),ZHOU Yi(周轶),ZHONG Jing(钟璟),et al.Preparation of Me-silicalite-1 zeolite membrane for pervaporation separation of DMF/H2O mixtures(用于分离DMF/H2O体系的Me-silicalite-1渗透汽化分子筛膜的制备)[J].Journal of Chemical Engineering of Chinese Universities(高校化学工程学报),2014,28(5):965-970.
• [2]Vanherck K,Koeckelberghs G,Vankelecom I F J.Crosslinking polyimides for membrane applications:a review[J].Progress in Polymer Science,2013,38(6):874-896.
• [3]Vandezande P,Gevers L E,Vankelecom I F.Solvent resistant nanofiltration:separating on a molecular level[J].Chemical Society Reviews,2008,37(2):365-405.
• [4]Hendrix K,Vanherck K,Vankelecom I F J.Optimization of solvent resistant nanofiltration membranes prepared by the in-situ diamine crosslinking method[J].Journal of Membrane Science,2012,421-422:15-24.
• [5]Toh Y H S,Lim F W,Livingston A G.Polymeric membranes for nanofiltration in polar aprotic solvents[J].Journal of Membrane Science,2007,301(1):3-10.
• [6]Mangindaan D W,Gui M S,Chung T S.Pervaporation dehydration of acetone using P84 co-polyimide flat sheet membranes modified by vapor phase crosslinking[J].Journal of Membrane Science,2014,458:76-85.
• [7]Xu Y M,Le N L,Zuo J,et al.Aromatic polyimide and crosslinked thermally rearranged poly(benzoxazole-co-imide)membranes for isopropanol dehydration via pervaporation[J].Journal of Membrane Science,2016,499:317-325.
• [8]Qi R,Wang Y,Li J,et al.Pervaporation separation of alkane/thiophene mixtures with PDMS membrane[J].Journal of Membrane Science,2006,280(1):545-552.
• [9]Zhang H,Lin C E,Zhou M Y,et al.High thermal resistance polyimide separators prepared via soluble precusor and non-solvent induced phase separation process for lithium ion batteries[J].Electrochimica Acta,2016,187:125-133.
• [10]Ba C,Economy J.Preparation of PMDA/ODA polyimide membrane for use as substrate in a thermally stable composite reverse osmosis membrane[J].Journal of Membrane Science,2010,363(1):140-148.
• [11]Wang J,Song K,Cao B,et al.The influence of polyamic acid molecular weight on the membrane structure and performance of polyimide solvent-resistant nanofiltration[J].Journal of Chemical Technology&Biotechnology,2016,91(3):777-785.
• [12]YAO Zheng-ping(姚正平).Preparation and characterization of solvent-resistant polyimide/ceramic composite membrane(耐溶剂聚酰亚胺/陶瓷复合膜的制备及性能表征)[J].Chemical industry and engineering progress(化工进展),2015,34(11):3990-3994.
• [13]Xu S,Wang Y.Novel thermally cross-linked polyimide membranes for ethanol dehydration via pervaporation[J].Journal of Membrane Science,2015,496:142-155.
• [14]Xu Y X,Chen C X,Zhang P X,et al.Pervaporation properties of polyimide membranes for separation of ethanol+water mixtures[J].Journal of Chemical&Engineering Data,2006,51(5):1841-1845.
• [15]Johan E,Abadal C R,Sekuli?J,et al.Transport mechanisms of water and organic solvents through microporous silica in the pervaporation of binary liquids[J].Microporous and Mesoporous Materials,2003,65(2):197-208.
• [16]Brandrup J,Immergut E H,Grulke E A.Polymer handbook[M].New York:John Wiley&Sons,Inc.1999.
• [17]Aminabhavi T M,Naik H G.Pervaporation separation of water/dimethylformamide mixtures using poly(vinylalcohol)-g-polyacryl amide copolymeric membranes[J].Journal of Applied Polymer Science,2010,83(2):273-282.
• [18]Kurkuri M D,Aminabhavi T M.Polyacrylonitrile-g-poly(vinyl alcohol)membranes for the pervaporation separation of dimethylformamide and water mixtures[J].Journal of Applied Polymer Science,2010,91(6):4091-4097.
• [19]Solak E K,Asman G,?amurlu P,et al.Sorption,diffusion,and pervaporation characteristics of dimethylformamide/water mixtures using sodium alginate/polyvinyl pyrrolidone blend membranes[J].Vacuum,2008,82(6):579-587.
• [20]Tang J,Sirkar K K.Perfluoropolymer membrane behaves like a zeolite membrane in dehydration of aprotic solvents[J].Journal of Membrane Science,2012,421-422:211-216.
• [21]HAN Guang-lu(韩光鲁).Pervaporation membranes selection and preparation,and hybrid process development for recovery of N,N-dimethylformamide from synthetic leather waste water(回收合成革行业废水中二甲基甲酰胺的渗透汽化膜的筛选、制备和耦合工艺开发)[D].Changzhou(常州):Changzhou University(常州大学),2011.