New polyamide TFC reverse osmosis membranes fabricated from a novel trimesoylamidoamine monomer
A novel amine monomer trimesoylamidoamine (TMAAM) was synthesized from trimesoyl chloride (TMC) and 1,3-diamino-2-propanol (DAP) and then be used to fabricate the new polyamide thin-film composite (TFC) reverse osmosis (RO) membranes.The membrane fabrication method had an important influence on the membrane structure and performance.The novel DAP/TMAAM-TMC membrane was prepared via conventional interfacial polymerization method with the mixed amine aqueous phase of DAP and TMAAM, while the DAP-TMAAM-TMC membrane was fabricated through two-step amine immersion method.The chemical structure of the resulted membranes were analyzed by attenuated total reflectance infrared(ATR-FTIR) and X-ray photoelectron spectroscopy (XPS), and their morphologies were observed by scanning electron microscopy (SEM) and atomic force microscopy(AFM).The separation performance of the membranes was evaluated by permeate experiment, and their antifouling and chlorine tolerant properties were tested by dynamic fouling experiment and exposure experiment to active chlorine.The results show that the DAP-TMAAM-TMC presents much smoother surface, relative better antifouling and chlorine tolerant properties than the conventional MPD-TMC membrane and DAP/TMAAM-TMC membrane.
Reverse osmosis membrane polyamide,trimesoylamidoamine,1,3-diamino-2-propanol,antifouling chlorine-tolerant
Xingling Gu Xiaolin Chen Lifen Liu Congjie Gao
Center for Membrane and Water Science and Technology, Ocean College, Zhejiang University of Technolo College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310014, China
国内会议
江西上饶
英文
25-27
2016-08-01（万方平台首次上网日期，不代表论文的发表时间）