以聚砜(PSf)为膜材料、N,N-二甲基乙酰胺(DMAc)为溶剂、聚乙二醇(PEG)为添加剂配成纺丝铸膜液,通过溶液相转化制备七通道聚砜中空纤维膜,系统研究了不同拉伸比对膜形态结构及性能的影响规律.结果表明:纤维外径、小孔直径及小孔与小孔之间的距离以及内表面功能层厚度等均随着拉伸比的提高而减小.同时,提高了中空纤维膜的纯水通量;但对BSA的截留率有所降低,断裂伸长率及断裂强度也有所降低.
参考文献
| [1] | Sourja Ghosh;Priyankari Bhattacharya;Swachchha Majumdar;Subrata Dasgupta;Sibdas Bandyopadhyay .Comparative study on treatment of kitchen-sink wastewater using single and multichannel ceramic membrane[J].International journal of environmental technology and management,2010(3/4):336-347. |
| [2] | Detlef Gille;Wolfgang Czolkoss .Ultrafiltration with multi-bore membranes as seawater pre-treatment[J].Desalination: The International Journal on the Science and Technology of Desalting and Water Purification,2005(1/3):301-307. |
| [3] | Kesting R E;Fritzsche A K.Polymeric gas separation membranes[M].New York:Wiley,1993 |
| [4] | Y. Liu;G.H. Koops;H. Strathmann .Characterization of morphology controlled polyethersulfone hollow fiber membranes by the addition of polyethylene glycol to the dope and bore liquid solution[J].Journal of Membrane Science,2003(1/2):187-199. |
| [5] | Ren JZ.;Chung TS.;Li DF.;Wang R.;Liu Y. .Development of asymmetric 6FDA-2,6 DAT hollow fiber membranes for CO2/CH4 separation - 1. The influence of dope composition and rheology on membrane morphology and separation performance[J].Journal of Membrane Science,2002(2):227-240. |
| [6] | Jong Hak Kim;Byoung Ryul Min;Jongok Won .Phase behavior and mechanism of membrane formation for polyimide/DMSO/water system[J].Journal of Membrane Science,2001(1/2):47-55. |
| [7] | Lin KY.;Wang DM.;Lai JY. .Nonsolvent-induced gelation and its effect on membrane morphology[J].Macromolecules,2002(17):6697-6706. |
| [8] | Tsai H A;Li L D;Lee K R et al.Effect of surfactant addition on the morphology and pervaporation performance of asymmetric polysulfone membranes[J].Journal of Membrane Science,2000,176(01):97-103. |
| [9] | Nakajima T;Kajiwara K;McIntyre J E.Advanced fiber spinning technology[M].Woodhead Pub Limited |
| [10] | Wangxi Z;Jie L;Gang W .Evolution of structure and properties of PAN precursors during their conversion to carbon fibers[J].CARBON,2003,41(14):2805-2812. |
| [11] | Wang KY;Li DF;Chung TS;Chen SB .The observation of elongation dependent macrovoid evolution in single and dual-layer asymmetric hollow fiber membranes[J].Chemical Engineering Science,2004(21):4657-4660. |
| [12] | Chou WL;Yang MC .Effect of take-up speed on physical properties and permeation performance of cellulose acetate hollow fibers[J].Journal of Membrane Science,2005(1/2):259-267. |
| [13] | Da-Guang Yu;Wen-Li Chou;Ming-Chien Yang .Effect of draw ratio and coagulant composition on polyacrylonitrile hollow fiber membranes[J].Separation and Purification Technology,2006(2):380-387. |
| [14] | 徐天成,张洁敏,付振刚,李建新.聚合物多通道中空纤维膜研究进展[J].膜科学与技术,2013(05):92-97. |
| [15] | 陈颖,李雪梅,李晓明.聚丙烯中空纤维膜拉伸性能测试方法试验研究[J].膜科学与技术,2010(04):65-68. |
| [16] | Cao C.;Chung TS.;Chen SB.;Dong ZJ. .The study of elongation and shear rates in spinning process and its effect on gas separation performance of Poly(ether sulfone) (PES) hollow fiber membranes[J].Chemical Engineering Science,2004(5):1053-1062. |
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