| 聚乙烯醇/聚乙烯吡咯烷酮共混膜的制备和性能 |
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| 引用本文： | 张秀华,朱爱梅,张秋根,刘庆林.聚乙烯醇/聚乙烯吡咯烷酮共混膜的制备和性能[J].高分子材料科学与工程,2010(9). |
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| 作者姓名： | 张秀华 朱爱梅 张秋根 刘庆林 |
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| 作者单位： | 国家醇醚酯化工清洁生产工程实验室;厦门大学化学化工学院化学工程与生物工程系; |
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| 基金项目： | 国家自然科学基金资助项目(20976145); 福建省自然科学基金资助项目(2009J01040) |
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| 摘 要： | 制备了聚乙烯醇(PVA)、PVA/聚乙烯吡咯烷酮(PVP)与戊二醛交联的PVA/PVP膜用于渗透蒸发对乙酸乙酯/乙醇/水三元共沸体系脱水。采用傅立叶变换红外光谱(FT-IR),X射线散射(XRD)和扫描电镜(SEM)等对膜的物理化学结构及形貌进行了表征。考察了PVP含量、交联度对共混膜结构和亲水性的影响。考察了PVP含量、交联度和温度对PVA均质膜的分离性能和溶胀行为的影响。结果表明,交联的PVA/PVP共混膜对乙酸乙酯/乙醇/水有着优异的分离性能。
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| 关 键 词： | 渗透蒸发 乙酸乙酯 交联 共混 |
Poly (Vinyl Alcohol)/Polyvinylpyrrolidone Blending Membranes:Preparation,Characterization and Dehydration of Ethyl Acetate/Ethanol/Water Azeotrope by Pervaporation |
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| ZHANG Xiu-hua,ZHU Ai-mei,ZHANG Qiu-gen,LIU Qing-lin.Poly (Vinyl Alcohol)/Polyvinylpyrrolidone Blending Membranes:Preparation,Characterization and Dehydration of Ethyl Acetate/Ethanol/Water Azeotrope by Pervaporation[J].Polymer Materials Science & Engineering,2010(9). |
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| Authors: | ZHANG Xiu-hua ZHU Ai-mei ZHANG Qiu-gen LIU Qing-lin |
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| Affiliation: | ZHANG Xiu-hua,ZHU Ai-mei,ZHANG Qiu-gen,LIU Qing-lin(National Engineering Laboratory for Green Chemical Productions of Alcohols,Ethers and Esters,Department of Chemical & Biochemical Engineering,the College of Chemistry and Chemical Engineering,Xiamen University,Xiamen 361005,China) |
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| Abstract: | Homogeneous membranes were prepared by blending poly (vinyl alcohol) (PVA) with polyvinylpyrrolidone (PVP) and then cross-linked with glutaraldehyde (GA). The dehydration of ethyl acetate/ethanol/water azeotrope by pervaporation was proposed with the aims of low energy consumption and high separation factor. The membranes were characterized by Fourier transform infrared spectroscopy (FT-IR),wide-angle X-ray diffraction (XRD) and scanning electron microscopy (SEM). The effects of the PVP content and cross-li... |
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| Keywords: | pervaporation ethyl acetate cross-linking blending |
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