| 溶剂选择对PVDF-HFP膜的耐甲醇渗透性能的影响 |
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| 引用本文： | 苗睿瑛,方勇,李建玲,王新东.溶剂选择对PVDF-HFP膜的耐甲醇渗透性能的影响[J].有色金属(冶炼部分),2009(5). |
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| 作者姓名： | 苗睿瑛 方勇 李建玲 王新东 |
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| 作者单位： | 北京科技大学冶金与生态工程学院,北京,100083 |
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| 基金项目： | 国家自然科学基金资助项目 |
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| 摘 要： | 通过相转化法,采用不同溶剂制备了多孔聚偏氟乙烯-六氟丙烯(PVDF-HFP)共聚物膜,采用计时电流法考察了膜的耐甲醇渗透性能。实验结果表明:以低沸点溶剂如丙酮和四氢呋喃作为溶剂时得到的膜多孔性较为明显,甲醇渗透较为严重,而以高沸点溶剂如N,N-二甲基乙酰胺和N-甲基吡咯烷酮作为溶剂时,形成的膜甲醇渗透较小,耐甲醇渗透性能较好。
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| 关 键 词： | 溶剂蒸发法 聚偏氟乙烯-六氟丙烯共聚物 甲醇渗透 直接甲醇燃料电池 |
Effects of Solvents on the Methanol Cross-Over of the PVDF-HFP Membranes |
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| MIAO Rui-ying,FANG Yong,LI Jian-ling,WANG Xin-dong.Effects of Solvents on the Methanol Cross-Over of the PVDF-HFP Membranes[J].Nonferrous Metals(Extractive Metallurgy),2009(5). |
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| Authors: | MIAO Rui-ying FANG Yong LI Jian-ling WANG Xin-dong |
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| Abstract: | The porous poly-vinylidene fluoride-hexafluoropropylene(PVDF-HFP) membranes were prepared by means of phase inversion method with different solvents.Their performances of methanol cross-over and the influence of the solvents on the performance of membranes were studied.As a result,the membranes prepared by solvents with high-boiling point have better performance than those prepared by solvents with low-boiling point. |
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| Keywords: | Phase inversion method Poly-vinylidene fluoride-hexafluoropropylene(PVDF-HFP) Methanol cross-over Direct methanol fuel cell(DMFC) |
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