以间苯二甲酰氯、4-哌嗪哌啶、3-[(2-氨基乙基)-二甲胺]丙烷-1-磺酸作为结构调节分子,分别考察了添加每种分子对顺-(1,3,5)-胺基环己烷-均苯三甲酰氯纳滤膜的水通量和盐截留率的影响.当添加间苯二甲酰氯时,膜的水通量下降.考察了顺-(1,3,5)-胺基环己烷-间苯二甲酰氯纳滤膜的性能,该膜水通量为2.7 L/(m2·h·MPa),对盐的截留顺序为Na2SO4 (92.3％)＞MgC12 (76.6％)＞NaCl(54.5％).当添加4-哌嗪哌啶时,膜的水通量增加.当添加3-[(2-氨基乙基)-二甲胺]丙烷-1-磺酸时,膜的水通量随其浓度增加呈先增大后减小的趋势.当添加少量结构调节分子时,各膜对Na2SO4的截留率都轻微下降;当添加量较多时,截留率下降幅度较大.
The effects of isophthaloyl dichloride,4-piperazine-piperidine and 3-[(2-aminoethyl)-dimethylammonio] propane-1-sulfonate on the separation performance of cis,cis-1,3,5-triaminocyclohexane-trimesoyl chloride nanofiltration membrane were studied respectively.When isophthaloyl dichloride was added,the flux of membrane was dropped,then the separation performance of cis,cis-1,3,5-triaminocyclohexane-isophthaloyl dichloride membrane was studied,which exhibited a flux of 2.7 L/(m2 · h · MPa) and a salts rejection order of Na2SO4 (92.3％)＞MgCl2 (76.6％)＞NaCl(54.5％).When 4-piperazine-piperidine was added,the flux increased.When 3-[(2-aminoethyl)-dimethylammonio]propane-1-sulfonate was added,the flux increased firstly and then decreased with the increase of this molecule's content.The salt rejections of all membranes were dropped slightly when small amount of each molecule was added,and dropped a lot when they were added too much.
参考文献
| [1] | 张烽;徐平.反渗透、纳滤膜及其在水处理中的应用[J].膜科学与技术,2003(4):241-245,254. |
| [2] | 王丽红;刘冬莲;杨松;王伟.二胺结构对聚酰胺复合纳滤膜性能的影响[J].化学研究与应用,2011(3):340-344. |
| [3] | Verissimo S;Peinemann KV;Bordado J.Influence of the diamine structure on the nanofiltration performance, surface morphology and surface charge of the composite polyamide membranes[J].Journal of Membrane Science,20061/2(1/2):266-275. |
| [4] | Zhou Yong;Yu Sanchuan;Liu Meihong;Gao Congjie.Polyamide thin film composite membrane prepared from m-phenylenediamine and m-phenylenediamine-5-sulfonic acid[J].Journal of Membrane Science,20061/2(1/2):162-168. |
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