| 聚乙烯醇缩醛膜用于水─乙醇渗透汽化分离 |
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| 引用本文： | 付圣权,戴亚,洪深求. 聚乙烯醇缩醛膜用于水─乙醇渗透汽化分离[J]. 安徽农业大学学报, 1999, 0(4) |
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| 作者姓名： | 付圣权 戴亚 洪深求 |
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| 作者单位： | 合肥经济技术学院食品科学系!合肥230052(付圣权，戴亚)，安徽省烟草公司(洪深求) |
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| 摘 要： | 用戊二醛与对苯二甲醛对聚乙烯醇（ＰＶＡ） 进行交联制得渗透汽化膜， 用于水－ 乙醇渗透汽化分离。ＤＳＣ测试结果表明， 对苯二甲醛与聚乙烯醇之间的交联反应进行得不够充分。溶胀度测试及渗透汽化分离水－ 乙醇混合液的结果表明， 对苯二甲醛交联聚乙烯醇膜与戊二醛交联聚乙烯醇膜相比， 其溶胀度及透量较高， 而分离系数较低
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| 关 键 词： | 聚乙烯醇缩醛膜 渗透汽化 膜分离 |
Pervaporation Separation of Water Ethanol Mixture Through Polyvinylacetal Membrane |
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| Fu Shengquan Dai Ya Hong Shenqiu. Pervaporation Separation of Water Ethanol Mixture Through Polyvinylacetal Membrane[J]. Journal of Anhui Agricultural University, 1999, 0(4) |
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| Authors: | Fu Shengquan Dai Ya Hong Shenqiu |
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| Affiliation: | Fu Shengquan 1 Dai Ya 1 Hong Shenqiu 2 |
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| Abstract: | Pervaporation separation of water ethanol mixture through the PVA membrane was crosslinked by pentanedial and p phenylene dimethyl aldehyde,respectively.DSC determination indicated that p phenylene dimethyl aldehyde didn't completely react with PVA.The determination of swelling degree and pervaporation separation of water ethanol mixture indicated that the PVA membrane crosslinked by p phenylene dimethyl aldehyde had higher swelling degree and flux and lower separation factor than the PVA membrane crosslinked by pentanedial. |
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| Keywords: | Polyvinylacetal membrane Pervaporation Membrane separation |
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