膜科学与技术

位置：首页 >> 期刊内容阅读

磺化聚醚砜复合反渗透膜的制备与性能研究

作者：万莹毛萃周琦陈雪峰刘群华刘文

单位：中国制浆造纸研究院,北京，100102

关键词：磺化聚醚砜；反渗透膜；耐氯

DOI号：

分类号： O631.5

出版年,卷(期):页码： 2014,34(6):46-50

摘要：

通过亲核取代反应制备了酚酞型聚醚砜（PES），利用浓硫酸对其磺化后得到了磺化聚醚砜（SPES），并通过核磁光谱对其结构进行了表征。将SPES与一定量的PVA溶解混合后，以聚砜超滤膜为支撑层，采用刷涂法制备了复合反渗透膜（SPES-PVA）。扫描电镜照片显示该方法制备的反渗透膜表面平整，而且无缺陷。PVA的加入提高了膜的截盐率以及耐氯性。采用该方法得到的复合反渗透膜具有良好的截盐率和水通量。其中，当PVA的加入量为0.1%时，SPES-PVA-0.1复合反渗透膜对氯化钠的截盐率达到了97.8%，水通量为12.3L/m2h。

Cardo poly(ether sulfone) polymer (PES) was synthesized by direct copolymerization method. After sulfonation, sulfonated poly(ether sulfone) polymer (SPES) was obtained, and the expected structure of the polymer was confirmed by 1H NMR. Reverse osmosis membranes were prepared by brushing method with SPES and PVA as the functional material and polysulfone ultrafiltration membrane as a support-layer. The SEM results indicated that the obtained reverse osmosis membranes had smooth surface, and no defect was observed. The introduction of PVA into the reverse osmosis membranes resulted in the improvement of the salt rejection and chlorine-tolerance. All the membranes showed appropriate water flux and salt rejection. Notably, SPES-PVA-0.1, with PVA content of 0.1%, exhibited a NaCl rejection of 97.8% and water flux of 12.3 L/m2h at 2.0 Mpa.

基金项目：

作者简介：

万莹（1984—），女，;吉林省德惠市人，博士，工程师，造纸技术。

参考文献：

[1] 俞三传，高从堦. 膜技术在海水淡化和综合利用中的新进展[J]. 海洋通报，2001，(l):83–8.
[2] 朱小莎，和慧勇，罗奖合. 反渗透技术在我国电厂中的应用总结[J]. 热力发电,1997, (6): 38-43.
[3] 时钧,袁权,高从堦.膜技术手册[M].北京:化学工业出版社,2001.
[4] 王晓琳.反渗透和纳滤技术与应用[M].北京:化学工业出版社,2005.
[5] 高从堦.芳香族聚酰胺反渗透复合膜的研究进展[R].第六届全国膜与膜过程报告会,天津,2008.04.
[5] R.J. Petersen, Composite reverse osmosis and nanofiltration membranes, J.Membr. Sci. 83 (1993) 81–150.
[6] Kim HI, Kim SS. Plasma treatment of polypropylene and polysulfonesupports for thin film composite reverse osmosis membrane[J]. J.Membr.Sci.2006,286(1-2):193-201.
[7] 俞三传,高从堦.磺化聚醚砜纳滤膜性能研究[J].水处理技术,2000,26(2):63-66.
[8] Elimelech M, Zhu X, Childress AE, et al.Role of membrane surface morphology in colloidal fouling of cellulose acetate and composite aromatic polyamide reverse osmosis membranes[J]. J.Membr.Sci.1997,127(1):101-109.
[9] 苗晶，陈国华，高从堦，孙明昆. 戊二醛交联的壳聚糖硫酸酯/聚砜复合纳滤膜的制备及截留特性[J]. 高等化学工程学报，2007,21(2):227-232.
[10] 计艳丽,安全福,钱锦文,陈欢林,高从堦.聚电解质层层自组装纳滤膜 [J].化学进展,2010,22(1):119-124.
[11] S. Alvonitis, W.T. Hanbury, T. Hodgkeiss, Chlorine degradation of aromatic polyamides[J]. Desalination 1992,85 (3):321–334.
[12] N.P. Isaias, Experience in reverse osmosis pretreatment[J]. Desalination 2001,139 (1-3):57–64.
[13] C. Brousse, R. Chapurlat, J.P. Quentin, New membranes for reverse osmosis. I. Characteristics of the base polymer: sulphonated polysulphones[J]. Desalination 1976,18(2):137–153.
[14] M. Drzewinski, W.J. MacKnight, Structure and properties of sulfonated polysulfone ionomers[J]. J. Appl. Polym. Sci. 1985,30 (12):4753–4770.
[15] H.B. Park, B.D. Freeman, Z.-B. Zhang, M. Sankir, J.E. McGrath, Highly chlorinetolerant polymers for desalination[J]. Angewandte Chemie International Edition 2008,47 (32): 6019–6024.
[16] Y.J. Kim, K.S. Lee, M.H. Jeong, J.S. Lee, Highly chlorine-resistant end-group crosslinked sulfonated-fluorinated poly(arylene ether) for resever osmosis membrane[J]. J. Membr. Sci. 2001, 378 (1-2): 512–519.
[17] M. Paul, H.B. Park, B.D. Freeman, A. Roy, J.E. McGrath, J.S. Riffle, Synthesis and crosslinking of partially disulfonated poly(arylene ether sulfone) random copolymers as candidates for chlorine resistant reverse osmosis membranes[J]. Polymer 2008,49(9):2243–2252.
[18] 叶思佳，陈芝海，俞三传. 聚乙烯醇复合膜及其在水处理中的应用研究进展[J]. 水处理技术，2012,38(3):7-11.
[19]施柳青，卞晓锴，陆晓峰，梁国明. 聚乙烯醇复合纳滤膜的性能研究[J]. 化学世界，2002,58(S1):156-158.
[20] P.X. Xing, C.P. Robertson, M.D. Guiver, S.D. Mikhailenko, K.S. Wang, Synthesis and characterization of sulfonated poly(ether ether ketone) for proton exchange membranes[J]. J. Membr. Sci. 229 (2004) 95–106.
[21] T. Yang, Preliminary study of SPEEK/PVA blend membranes for DMFC applications[J]. International Journal of Hydrogen Energy 2009,342(1-2):221-226.

服务与反馈：

【文章下载】【加入收藏】

《膜科学与技术》编辑部地址：北京市朝阳区北三环东路19号蓝星大厦邮政编码：100029 电话：010-64426130/64433466 传真：010-80485372邮箱：mkxyjs@163.com