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反渗透复合膜(Ⅰ)结构与性能

Reverse osmosis composite membrane(Ⅰ) Chemical structure and performance

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【作者】 周勇俞三传高从堦

【Author】 ZHOU Yong1 ,YU Sanchuan2,GAO Congjie2 (1School of Material Science and Chemical Engineering, Zhejiang University, Hangzhou 310027,Zhejiang,China; 2Research and Development Center of Water Treatment Technology, State Oceanic Admistration,Hangzhou 310012,Zhejiang,China)

【机构】 浙江大学材料与化学工程学院国家海洋局杭州水处理技术研究开发中心国家海洋局杭州水处理技术研究开发中心 浙江杭州310027浙江杭州310012

【Abstract】 Three composite reverse osmosis membranes were prepared from m-phenylenediamine (MPD) and trimesoyl chloride (TMC), 5-chloroformate-isophthaloyl chloride (CFIC), 5-isocynate-isophthaloyl chloride (ICIC) respectively through the interfacial polymerization technique on the polysulphone supporting membrane.The membranes produced were characterized by using permeation experiments with salt water, attenuated total reflectance infrared (ATR-IR), and X-ray photoelectronic spectroscopy (XPS).This study showed that with the increase of NaCl concentration, the flux of the three membranes decreased; the rejection of TMC/MPD, ICIC/MPD composite membranes increased firstly and then decreased; but the rejection of CFIC/MPD composite membrane kept steady.According to the ATR-IR and XPS results, the active layer of three membranes was composed of crosslinked polymer and linear polymer with pendant; all three composite membranes contained amide functional group( —CONH? ゛nd carboxyl acid functional group( —COOH ); the ICIC/MPD composite membrane contained urea functional group( —NHCONH? ? the CFIC/MPD composite membrane also contains urethane functional group( —OCONH? ゛nd hydroxyl functional group( —OH ).The hydroxyl functional group could lead to high rejection and low flux.

【基金】 国家高技术研究发展计划项目(2002AA328010);国家重点基础研究发展规划项目(2003CB615700).~~
  • 【文献出处】 化工学报 ,Journal of Chemical Industry and Engineering(China) , 编辑部邮箱 ,2006年06期
  • 【分类号】TQ028.8
  • 【被引频次】28
  • 【下载频次】455
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