期刊
JOURNAL OF MEMBRANE SCIENCE
卷 467, 期 -, 页码 303-312出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.memsci.2014.03.072
关键词
Polyamide; Co-solvent; Interfacial polymerization; Surface morphology; Multi-layered
Polyamide membranes with a controlled surface morphology were prepared by the interfacial polymerization of 1,3-phenylenediamine (MPD) with 1,3,5-benzenetricarbonyl trichloride (TMC) on polysulfone ultrafiltration supports. In a novel polymerization method, co-solvents, which included acetone, ethyl acetate, diethyl ether, toluene, isopropyl alcohol (IPA) and N,N'-dimethyl formamide (DMF), were added into the organic phase which made it possible to control the surface morphology and polyamide network structures. As-prepared, the membranes showed multi-layered ridge-and-valley structures, and the types of co-solvent successfully controlled permeate flux and rejection. Polyamide membranes prepared by the addition of 2 wt% ethyl acetate, showed the best performance with NaC1 rejection of 99% and permeate flux of more than 1 m(3)/(m(2) d) at 1.5 MPa, which was about twice that of a membrane prepared without a co-solvent. (C) 2014 Elsevier B.V. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据