| CO2／CH4醋酸纤维素分离膜的制备 |
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| 引用本文： | 郝继华,王志.CO2／CH4醋酸纤维素分离膜的制备[J].高分子材料科学与工程,1997,13(4):64-68. |
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| 作者姓名： | 郝继华 王志 |
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| 作者单位： | 天津大学化学工程研究所 |
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| 基金项目： | 天津市21世纪青年基金 |
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| 摘 要： | 以湿相转化法制备ＣＯ２／Ｃ４醋酸纤维互分离膜，无需热处理工序，研究了各种制膜条件，如蒸发时间、聚合物芨添加剂含量等，对膜气体分离性能的影响；用电镜观察了膜的形态结构，结果表明，适当提高聚合物浓度和延长蒸发时间可使膜表皮层变致密，获得高的ＣＯ２／ＣＨ４分离选择性和气体透过速率。
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| 关 键 词： | 醋酸纤维素 膜 分离膜 膜分离 气体分离 |
FORMATION OF CELLULOSE ACETATE MEMBRANES FOR THE SEPARATION OF CARBON DIOXIDE METHANE GAS MIXTURES |
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| Hao Jihua,Wang Zhi,Wang Shichang.FORMATION OF CELLULOSE ACETATE MEMBRANES FOR THE SEPARATION OF CARBON DIOXIDE METHANE GAS MIXTURES[J].Polymer Materials Science & Engineering,1997,13(4):64-68. |
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| Authors: | Hao Jihua Wang Zhi Wang Shichang |
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| Abstract: | Asymmetric cellulose acetate membranes were prepared without heat treating by the wet phase inversion. The effect of the membrane forming factors on separation characteristics of the membrane for CO 2/CH 4 was investigated. Morphologies by scanning electron photomicrographs were observed. It has shown that the asymmetric CA membranes for the seperation of CO 2/CH 4 with good separation factor, higher flux coefficient are obtained by increasing the polymer concentration in the casting solution and prolonging the evaporating time during the membrane forming process. |
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| Keywords: | cellulose acetate carbon dioxide methane membrane |
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