膜科学与技术

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Preparation of Hydrophobic Nano-silica Modified PDMS/PET Composite Membrane and Its Pervaporation for Dilute Ethanol-Water Solution

Authors： WANG Guang-fang, SUN De, WANG Liang, LI Ran

Units： College of Chemical engineering, Changchun University of Technology, Changchun 130012, Jilin China

KeyWords： PDMS; silica; modified membrane; separation factor

ClassificationCode：TQ TQ028.8

year,volume(issue):pagination： 2011,31(6):41-45

Abstract：

The current PDMS/PET composite membranes were prepared by filling polydimethylsiloxane (PDMS) membrane with fumed hydrophobic nano-silica on PET membrane. The physical morphology, tensile strength and thermal resistant performance of the as-prepared composite membranes were investigated by SEM, WSM-5KN and TGA. And further the effects of feed temperature, feed concentration on the pervaporation performance of ethanol/water solutions were also examined. It was shown from the results that the thermal resistant performance of the modified membrane was significantly improved and its tensile-strength was increased from 1.5Mpa to 7.4MPa compared with pure PDMS. Otherwise the peak value of the membrane separation factor seemed to constantly appear in advance.

Funds：

吉林省教育厅自然科学基金[2008]105

AuthorIntro：

王光芳（1985—），女，山东潍坊人，研究生，主要从事硅橡胶材料的研究。E-mail: kuailexiaobianzi@163.com *联系人：孙德，高级实验师。

Reference：

[1] 陈翠仙, 余立新, 祁喜旺. 渗透汽化膜分离技术的进展及在石油化工中的应用. 膜科学与技术, 1997, 17(3): 14-18.
[2] 祁喜旺, 陈洪钫. 渗透蒸发膜及其传质的研究进展[J]. 膜科学与技术, 1995, 15(3): 1-9.
[3] 方志平, 冯海锋, 吴洪等. 改性PDMS膜的制备与渗透蒸发分离性能研究[J]. 天津工业大学学报, 2005, 24（5）:28~32
[4] O'Brien D J, Senske G E, Kurantz M J, et al. Ethanol Recovery from Corn Fiber Hydrolysate Fermentations by Pervaporation [J].Bioresour. Technol., 2004, 92(1): 15−19.
[5] Vane L M. A Review of Pervaporation for Product Recovery fromBiomass Fermentation Processes [J]. J. Chem. Technol. Biotechnol., 2005, 80(6): 603−629.
[6] Wu Y, Xiao Z, Huang W, et al. Mass Transfer in Pervaporation ofActive Fermentation Broth with a Composite PDMS Membrane [J]. Sep. Purif. Technol., 2005, 42(1): 47−53.
[7] 姜泉, 石尔, 黄卫星, 等. 硅橡胶膜生物反应器中乙醇发酵与渗透汽化的耦合[J]. 精细化工, 2007, 24(1): 50−54.
[8] Lu S-Y, Chiu C P, Huang H Y. Pervaporation of Acetic Acid/Water Mixtures through Silicalite Filled Polydimethylsiloxane Membranes[J]. J. Membr. Sci., 2000, 176(2): 159−167.

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