| 添加碱金属氯化物的聚乙烯醇改性膜用于水乙醇渗透汽化分离 |
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| 引用本文： | 付圣权,林辉,戴亚,张可达.添加碱金属氯化物的聚乙烯醇改性膜用于水乙醇渗透汽化分离[J].安徽师范大学学报(自然科学版),1999(3). |
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| 作者姓名： | 付圣权 林辉 戴亚 张可达 |
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| 作者单位： | 合肥经济技术学院加工工艺系!安徽合肥230052(付圣权，林辉，戴亚)，苏州大学化学化工学院!江苏苏州215006(张可达) |
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| 摘 要： | 用碱金属氯化物对聚乙烯醇进行改性制得渗透汽化膜，并用于水乙醇渗透汽化分离．热分析结果表明：盐的加入增加了膜的热稳定性．膜的溶胀度的测试结果表明：随浸泡液中水含量增加，膜的溶胀度增大．渗透汽化结果表明：膜中含盐量对膜渗透汽化性能影响很大
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| 关 键 词： | 聚乙烯醇 碱金属氯化物 渗透汽化 膜分离 |
PERVAPORATION SEPARATION OF WATER ETHANOL MIXTURE THROUGH PVA MEMBRANE MODIFIED BY ALKALI METAL CHLORIDE |
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| FU Sheng quan ,\ LIN Hui ,\ DAI Ya ,\ ZHANG Ke da.PERVAPORATION SEPARATION OF WATER ETHANOL MIXTURE THROUGH PVA MEMBRANE MODIFIED BY ALKALI METAL CHLORIDE[J].Journal of Anhui Normal University(Natural Science Edition),1999(3). |
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| Authors: | FU Sheng quan \ LIN Hui \ DAI Ya \ ZHANG Ke da |
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| Institution: | FU Sheng quan 1,\ LIN Hui 1,\ DAI Ya 1,\ ZHANG Ke da 2 |
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| Abstract: | The PVA membrane was modified by alkali metal chloride, and was used as a pervaporation membrane to separate water ehanol mixture. The results of thermal analysis indicated that the thermal stability of the membrane added with alkali metal chloride was increased. The results of the determination of swelling degree indicated that the swelling degree of the membrane was increased as the concentration of water in sorbed liquid was hightened. The results of pervaporation separation of water ethanol mixture indicated that the percentage of alkali metal chloride in the membrane had a great effect on the permselectivity of the membrane. |
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| Keywords: | PVA(polyvinyl alcohol) alkali metal chloride pervaporation membrane separation |
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