膜科学与技术

界面聚合正渗透膜结构参数的调控

作者：肖佩佩¹，²，殷勇²，宋健峰²，王周为²，李雪梅²，李刚²，曾楚怡²，何涛²

单位： 1湘潭大学化工学院，湘潭411005；2中国科学院上海高等研究院，上海201203

关键词：正渗透；浓差极化；亲水性；双层刮膜法

出版年,卷(期):页码： 2014,34(5):40-43

摘要：

正渗透过程是以渗透压差为驱动力的膜过程。其中膜的结构参数是决定膜的传质阻力和水通量的关键因素。本文系统介绍了本课题组在调控界面聚合正渗透膜材料结构参数方面的研究进展。利用共混亲水高分子材料调节基膜的亲水性，利用双层刮膜技术调节基膜的孔结构。结果表明利用亲水基膜和具有贯通孔结构的基膜获得FO膜具有更低的膜结构参数，其正渗透性能也更高。

Forward osmosis (FO) process is driven by the osmotic pressure differential across a semipermeable membrane. The structural parameter of the FO membrane is critical in determining mass transfer resistance and, eventually, the performance of the corresponding membrane. Herein the research progress is reported on the tuning of membrane structural parameter of thin film composite membranes. Two approaches are reported namely, controlling the wettability of PSf by blending with PVP, and tuning the PSf pore structure via co-casting. Results demonstrated that both approaches have yielded membranes with reduced S values of the support layers and consequently better TFC FO membranes than purely PSf based TFC membranes or HTI CTA membranes.

肖佩佩(1989-)，女，湖南常德人，硕士研究生，湘潭大学，膜法水处理。*通讯联系人： mail: zengcy@sari.ac.cn, het@sari.ac.cn.

参考文献：

1.Cath, T., A. Childress, and M. Elimelech, Forward osmosis: Principles, applications, and recent developments. Journal of Membrane Science, 2006. 281(1-2): p. 70-87.
2.Chung, T.-S., et al., Forward osmosis processes: Yesterday, today and tomorrow. Desalination, 2012. 287: p. 78-81.
3.何涛，李雪梅，许高杰，谢明，姜标, 膜技术新进展与工程应用案例. 2013: 国防工业出版社.
4.李刚，李雪梅，何涛，姜标，高从堦, 正渗透膜材料与驱动体系的研究. 膜科学与技术, 2012. Vol.32 No.2.
5.McCutcheon, J.R. and M. Elimelech, Influence of concentrative and dilutive internal concentration polarization on flux behavior in forward osmosis. Journal of Membrane Science, 2006. 284(1-2): p. 237-247.
6.李刚，李雪梅，柳越，王铎，何涛，高从堦, 正渗透原理及浓差极化现象. 化学进展, 2010. Vol.22 No.5: p. 812-821.
7.Li, X.-M., et al., Origin of delamination/ adhesion in polyetherimide/polysulfone co-cast membranes. Journal of Membrane Science, 2010. 352(1-2): p. 173-179.
8.Ji, Y., et al., Morphological control and cross-flow filtration of microfiltration membranes prepared via a sacrificial-layer approach. Journal of Membrane Science, 2010. 353(1-2): p. 159-168.
9.王周为，季瑜，隋波，李雪梅，张云燕，殷勇，何涛, 双层刮膜法中聚砜膜结构的控制和性能研究. 膜科学与技术, 2011. Vol.31 No.2: p. 39-45.
10.张云燕，季瑜隋波，李雪梅，殷勇，周为，何涛, 双层刮膜中分层/粘结和开孔结构形成机理研究. 膜科学与技术, 2011. Vol.31 No.1: p. 25-34.
11.Tzahi Y. Cath, M.E., Jeffrey R. McCutcheon,Robert L. Mcginnis,Andrea Achilli, Standard methodology for evaluating membrane performance in osmotically driven membrane processes. 2013. Vol 312, 31-38

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