| 聚醚共聚酰胺(PEBA)膜的溶胀和渗透汽化行为研究 |
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| 引用本文： | 刘琨,杨超,陈松,邹昀.聚醚共聚酰胺(PEBA)膜的溶胀和渗透汽化行为研究[J].高校化学工程学报,2010,24(1). |
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| 作者姓名： | 刘琨 杨超 陈松 邹昀 |
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| 作者单位： | 广西大学,化学化工学院,广西,南宁,530004 |
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| 基金项目： | 广西留学回国基金(桂科回0575002);;广西区教育厅研究生创新基地建设 |
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| 摘 要： | 用涂布法制备出PEBA均质膜,分别测试了膜在纯醋酸正丁酯、水以及醋酸正丁酯稀水溶液中的溶胀率,并考察了浸泡时间、温度和溶液浓度对溶胀率的影响;结果表明:PEBA膜在水中溶胀很小,对醋酸正丁酯具有优先吸附能力;溶胀率随浸泡时间的延长、浸泡液浓度和温度的升高而逐渐上升。渗透汽化实验表明膜对醋酸正丁酯的良好选择性,膜的渗透通量和分离因子随着浓度的增加而增加,渗透通量随着温度的升高而增加,但分离因子随温度的升高而减小;当原料液浓度为0.6%(wt)时,醋酸正丁酯的渗透通量为143.9g·m-2·h-1,分离因子达到236.9。
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| 关 键 词： | 聚醚共聚酰胺（PEBA） 膜 溶胀 渗透汽化 |
Swelling and Pervaporation Behavior of Poly(ether block amide) Membrane |
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| LIU Kun,YANG Chao,CHEN Song,ZOU Yun.Swelling and Pervaporation Behavior of Poly(ether block amide) Membrane[J].Journal of Chemical Engineering of Chinese Universities,2010,24(1). |
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| Authors: | LIU Kun YANG Chao CHEN Song ZOU Yun |
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| Affiliation: | School of Chemistry and Chemical Engineering;Guangxi University;Nanning 530004;China |
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| Abstract: | The poly(ether block amid) (PEBA) membrane was prepared by solvent casting method. The swelling behaviors of the prepared membrane in pure n-butyl acetate, water and n-butyl acetate aqueous solution were explored respectively. The effects of n-butyl acetate concentration, dipping time and temperature on the swelling degree of the prepared membrane were investigated respectively. The results indicate that the swelling degree of the prepared membrane increases with increasing the n-butyl acetate concentration... |
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| Keywords: | poly(ether block amide) (PEBA) membrane swelling pervaporation |
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