| 碱金属盐改性PVA-MA酯化交联膜的制备与表征 |
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| 引用本文： | 孟平蕊,李良波,孟桂芳,陈翠仙,蒋维钧.碱金属盐改性PVA-MA酯化交联膜的制备与表征[J].合成树脂及塑料,2000,17(6):6-8. |
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| 作者姓名： | 孟平蕊 李良波 孟桂芳 陈翠仙 蒋维钧 |
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| 作者单位： | 1. 山东建材学院化工系,济南,250022
2. 清华大学化工系,北京100084 |
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| 基金项目： | 国家科技攻关计划，96-A13-01-06， |
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| 摘 要： | 以红外光谱和扫描电子显微镜表征碱金属盐改性聚乙烯醇（ＰＶＡ）－马来酸（ＭＡ）酯化交联膜的结构与表面形态，研究了含碱金属盐ＰＶＡ－ＭＡ交联膜对乙醇－水混合物的分离性能。盐含量低于６％（质量分数）时，膜的渗透通量明显增加，原料液乙醇浓度为９５％时，分离系数也增大。
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| 关 键 词： | 碱金属盐 聚乙烯醇 马来酸酯化交联膜 改性 |
| 修稿时间： | 1999年12月21 |
Preparation and Characterization of Alkali Metal Salt Improved PVA-MA Pervaporation Membrane |
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| Meng Pingrui,Li Liangbo,Meng Guifang,Chen Cuixian,Jiang Weijun.Preparation and Characterization of Alkali Metal Salt Improved PVA-MA Pervaporation Membrane[J].China Synthetic Resin and Plastics,2000,17(6):6-8. |
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| Authors: | Meng Pingrui Li Liangbo Meng Guifang Chen Cuixian Jiang Weijun |
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| Abstract: | The structure and surface morphology of alkali metal salt improved poly (vinyl alcohol) (PVA) - maleic acid (MA) membranes was characterized by infrared spectrometry (IR) and scanning electron microscopy (SEM). The separation of ethanol/ water mixture system via pervaporation with the cross - linked PVA - MA membrane containing alkali - metal salt was studied. The flux increased markedly when the salt content was less than 6% in the dry membrane; the separation coefficient increased when the ethanol concentration in feed solution reached 95% . |
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| Keywords: | alkali metal poly (vinyl alcohol) -maleic acid membrane pervaporation membrane structure membrane separation aqueous ethanol solution |
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