Preparation of γ-methacryloxypropyl Trimethoxy Silane Cross-linked PDMS Membrane for Pervaporation Recovery of Butanol
来源期刊：Journal Of Wuhan University Of Technology Materials Science Edition2018年第2期
论文作者：ZHANG Kai LI Li YU Wei HU Mingjie ZHOU Yongyan FAN Xiaopeng 黄驰
文章页码：312 - 319
摘 要：The present study aimed to improve the pervaporation（PV） performances of polydimethylsiloxane（PDMS） membranes by using special cross-linkers. The γ-methacryloxypropyl trimethoxy silane（KH-570） cross-linked PDMS membranes were fabricated and characterized by FTIR, TGA, WCA, DSC, SEM, and swelling properties. Experimental results showed that the separation factor of the membrane increased slightly with the feed temperature whereas permeate flux increased. Butanol flux increased slowly with the feed concentration while the water flux decreased. The overall result indicated that the separation factor decreased slowly with the feed concentration. The membrane, with a thickness of 55 μm, showed a total flux of 308.4 g/m2h with a separation factor of 26.8 at 70 ℃, and butanol permeability reached 11.13×105 Barrer with a membrane selectivity of 56.0.
ZHANG Kai1，LI Li1，YU Wei2，HU Mingjie2,3，ZHOU Yongyan1，FAN Xiaopeng1，黄驰2
1. Electric Power Research Institute of Guangdong Power Grid Company Ltd.2. College of Chemistry and Molecular Sciences,Wuhan University3. School of Printing and Packaging,Wuhan University
摘 要：The present study aimed to improve the pervaporation（PV） performances of polydimethylsiloxane（PDMS） membranes by using special cross-linkers. The γ-methacryloxypropyl trimethoxy silane（KH-570） cross-linked PDMS membranes were fabricated and characterized by FTIR, TGA, WCA, DSC, SEM, and swelling properties. Experimental results showed that the separation factor of the membrane increased slightly with the feed temperature whereas permeate flux increased. Butanol flux increased slowly with the feed concentration while the water flux decreased. The overall result indicated that the separation factor decreased slowly with the feed concentration. The membrane, with a thickness of 55 μm, showed a total flux of 308.4 g/m2h with a separation factor of 26.8 at 70 ℃, and butanol permeability reached 11.13×105 Barrer with a membrane selectivity of 56.0.
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