| 荷正电纳滤膜的制备研究 |
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| 引用本文： | 杨艳红,方文骥.荷正电纳滤膜的制备研究[J].河南化工,2007,24(5):10-12. |
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| 作者姓名： | 杨艳红 方文骥 |
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| 作者单位： | 1. 中南林业科技大学,材料科学与工程学院,湖南,长沙,410014
2. 郑州大学,化工学院,河南,郑州,450002 |
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| 摘 要： | 主要研究以聚乙烯亚胺(PEI)和均苯三甲酰氯(TMC)为反应单体,采用界面聚合法来制备荷正电纳滤膜.通过均匀实验设计,得出的优化条件为: PEI浓度为1.75%,十二烷基硫酸钠(SDS)浓度为0.1%,酸接受剂(Na2CO3:NaOH=2:1)浓度为0.3%(均为质量浓度),界面聚合反应时间(IPT)为2 min,膜对一价盐的截留率均在30%左右,对二价盐的截留率接近70%,对低分子有机染料的截留率达90%以上.
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| 关 键 词： | 纳滤膜 界面聚合 均匀设计 荷正电纳滤膜 制备研究 Membrane Nanofiltration Preparation 有机染料 低分子 二价 截留率 一价盐 反应时间 界面聚合法 质量浓度 NaOH 十二烷基硫酸钠 优化条件 均匀实验设计 反应单体 均苯三甲酰氯 聚乙烯亚胺 |
| 文章编号： | 1003-3467（2007）05-0010-03 |
| 修稿时间： | 2007-03-09 |
Study on the Preparation of Positively Charged Nanofiltration Membrane |
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| YANG Yan-hong,FANG Wen-ji.Study on the Preparation of Positively Charged Nanofiltration Membrane[J].Henan Chemical Industry,2007,24(5):10-12. |
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| Authors: | YANG Yan-hong FANG Wen-ji |
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| Affiliation: | 1. College of Materials Science and Engineering , Central South University of Forestry and Technology , Changsha 410014 , China ; 2. Institute of Chemical Engineering , Zhengzhou University , Zhengzhou 450002 , China |
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| Abstract: | A positively charged nanofiltration(NF) membrane is prepared by interfacial polymerization method,with polyethylenimine(PEI) and trimesoyl chloride(TMC) as reaction monomers.From uniform experimental design,the optimization condition is obtained that the feasible concentration of PEI is 1.75%(wt);the concentration of SDS is 0.1%(wt);the concentration of acid accepters(Na) is 0.3%(wt)and reaction time is 2 min.The retention of this membrane to CaCl2 and MgCl2 is about 70% and the retention to NaCl and KCl is about 30%.Moreover,the retention of this membrane to dyes with small molecule weight is more than 90%. |
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| Keywords: | nanofihration membrane interfacial polymerization uniform design |
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