| 液液界面法测超滤膜孔径及孔径分布 |
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| 引用本文： | 罗菊芬,莫剑雄.液液界面法测超滤膜孔径及孔径分布[J].水处理技术,1996,22(5):254-260. |
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| 作者姓名： | 罗菊芬 莫剑雄 |
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| 作者单位： | 国家海洋局杭州水处理忠 |
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| 摘 要： | 本采用液液界面法，利用毛细管现象测定了截留分子量为２×１０＾４和５×１０＾４聚砜超滤膜ＰＳ－２，ＰＳ－５的孔径及孔径分布。结果表明，利用水－正丁醇体系能测定超滤膜的孔径及孔径分布，并且具有操作简便，测试压力接近膜工作压力的优点，对于ＰＳ－２超滤膜，测试压力达０．５ＭＰａ即能得到膜完整的孔径分布曲线。
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| 关 键 词： | 液液界面法 超滤膜 孔径 孔径分布 |
PORE SIZE CHARACTERISTICS OF ULTRAFILTRATION MEMBRANE BY LIQUID LIQUID INTERFACIAL CONTACT METHOD |
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| Luo Jufen and Mo Jianxiong.PORE SIZE CHARACTERISTICS OF ULTRAFILTRATION MEMBRANE BY LIQUID LIQUID INTERFACIAL CONTACT METHOD[J].Technology of Water Treatment,1996,22(5):254-260. |
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| Authors: | Luo Jufen and Mo Jianxiong |
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| Abstract: | Based on the theory of capillarity, the pore size distribution of UF membrane has been determined by Liquid Liquid Interfacial Contact method Using water and normal butyl alcohol system, we measured the pore size distribution of polysulpone UF membrane with cutoffs 20000 and 50000 daltons The result indicated that their mean flow pore size are 9 0nm and 12 1nm respectively This method is easy to use and its pressure is relatively low (near the opeartion pressure) For the UF membrane with cutoff 20000 daltons, 0 5MPa is enough |
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| Keywords: | liquid liquid interfacial contact ultrafiltration membrane pore size distribution |
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