| 磺化聚酰亚胺/SiO2复合膜的制备及其质子交换性能研究 |
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| 引用本文： | 高春晖,王太鹏,武德珍,杨士勇,范琳.磺化聚酰亚胺/SiO2复合膜的制备及其质子交换性能研究[J].化工新型材料,2012,40(2):75-78. |
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| 作者姓名： | 高春晖 王太鹏 武德珍 杨士勇 范琳 |
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| 作者单位： | 1. 北京化工大学材料科学与工程学院,化工资源有效利用国家重点实验室,北京100029
2. 中国科学院化学研究所高技术材料实验室,北京,100190 |
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| 摘 要： | 制备了具有不同硅含量的磺化聚酰亚胺/二氧化硅(SPI/SiO2)复合膜,研究了SiO2的引入对复合膜的力学性能、耐热性能、尺寸稳定性以及抗氧化和耐水解稳定性的影响规律,并对其质子传导率和甲醇渗透率进行了评价。结果表明,与商业化的Nafion115膜相比,复合膜表现出更优异的阻醇特性和选择透过性,其中SPI/SiO2-2复合膜具有更突出的高温质子传导特性。
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| 关 键 词： | 磺化聚酰亚胺 二氧化硅 复合膜 质子交换率 甲醇渗透率 |
Preparation of sulfonated polyimide/silica composite membranes and their proton conductivities |
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| Gao Chunhui
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Wang Taipeng
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Wu Dezhen
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Yang Shiyong
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Fan Lin.Preparation of sulfonated polyimide/silica composite membranes and their proton conductivities[J].New Chemical Materials,2012,40(2):75-78. |
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| Authors: | Gao Chunhui Wang Taipeng Wu Dezhen Yang Shiyong Fan Lin |
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| Affiliation: | 1.School of Material Science and Engineering,Beijing University of Chemical Technology,Beijing 100029; 2.Laboratory of Advanced Polymer Materials,Institute of Chemistry,Chinese Academy of Sciences,Beijing 100190) |
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| Abstract: | Sulfonated polyimide/silica composite membranes with different silicon contents were prepared via sol-gel method.The influence of the silica content on mechanical and thermal properties,dimensional stability,oxidation stability,water stability,as well as proton conductivity and methanol permeability of composite membranes was investigated.The results indicated that the composite membranes exhibited better methanol permeability and permselectivity than commercial available Nafion 115.SPI/SiO2-2 membrane showed the excellent proton conductivity at elevated temperature. |
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| Keywords: | sulfonated polyimide silica composite membrane proton conductivity methanol permeability |
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