| 聚偏氟乙烯大孔超滤膜的研究 |
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| 引用本文： | 王静荣.聚偏氟乙烯大孔超滤膜的研究[J].环境科学,1995,16(1):52-53. |
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| 作者姓名： | 王静荣 |
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| 作者单位： | 中国科学院生态环境研究中心 |
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| 基金项目： | 国家“七五”科技攻关项目 |
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| 摘 要： | 以国产聚偏氟乙烯（ＰＶＤＦ）为原料，选择不同种类的单一溶剂、混合溶剂和添加剂为铸膜液组成，研究了若干制膜因素对膜性能的影响，采用混合溶剂ＤＭＡＣ／ＡＣ之比控制ＡＣ含量在４０％─６０％，添加剂含量在１０％─２０％，制膜的气氛温度为２５—３０Ｃ，铸膜液温度为５０℃左右，可制得截留分子量为１５万和２４万，透水速度达３０—７０ｍｌ／（ｃｍ２·ｈ），截留率为９０％以上的大孔超滤膜。
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| 关 键 词： | 聚偏氟乙烯 大孔径超滤膜 超滤 膜分离 |
| 收稿时间： | 1994/4/16 0:00:00 |
Study on Large Pore Size Ultrsfiltrstion Membrane of Polyvinylidene fluoride(PVDF) |
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| Wang Jingrong.Study on Large Pore Size Ultrsfiltrstion Membrane of Polyvinylidene fluoride(PVDF)[J].Chinese Journal of Environmental Science,1995,16(1):52-53. |
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| Authors: | Wang Jingrong |
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| Institution: | Research Center for Eec-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085 |
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| Abstract: | A study on the preparation of large pore size ultrafiltration membrane of PVDF was reported in this paper. The effect of main parameters,such as solvents,additives and temperature, on the membrane properties was discussed. The membranes with a weight cut--off of 240000 and 150000 were prefared.The flux of 30--70 ml/(cm2.h) and the rejection rate above 90% can be achieved. |
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| Keywords: | polyvinylidene fluoride large pore xize ultrafiltration membrane |
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