化工进展2012,Vol.31Issue(5):1088-1095,8.
耐污染聚酰胺复合纳滤膜的制备及性能
Preparation and performance research of anti-fouling composite polyamide nanofiltration membrane
摘要
Abstract
A composite polypiperazine-amide nanofiltration membrane, supported by polysulfone ( PSF ) ultrafiltration membrane, was prepared via interracial polymerization ofpiperazine ( PIP ) and trimesoyl chloride ( TMC ) in the present ofpolyvinyl alcohol ( PVA ) . The effects of PVA, PIP and TMC concentration, temperature and time of heat treatment on the composite membrane were studied, and the surface structure and morphology were analyzed by scanning electron microscope ( SEM ) and atomic force microscopy ( AFM ) . The experiment results showed that increasing PVA content would lead to the increase in the flux of the nanofiltration membrane, make the nanofiltration membrane more hydrophilic, and cause the surface of the nanofiltration membrane smoother. The optimal preparing condition of the composite membrane was 3.0 g/LTMC, 1.0 g/L PIP, 0.54 g/L PVA, 1 min reaction time, and 10 min heat treatment at 50 ℃.The separation performance of self-made nanofiltration membrane, treating the solutions of Na2SO4, MgSO4, NaC1 or MgC12, was similar to that of the commercial nanofiltration membranes, such as Dow NF-270 and Synder. Furthermore, the nanofiltration membrane also showed very good separation and anti-fouling performance in the advanced treatment of deinking wastewater.关键词
哌嗪/均苯三甲酰氯/聚乙烯醇/界面聚合/复合纳滤膜/脱墨废水Key words
piperazine/trimesoyl chloride/polyvinyl alcohol/interracial polymerization/compositenanofiltration membrane/deinking wastewater分类
化学化工引用本文复制引用
孙志猛,任晓晶,赵可卉,张忠国,赵义平,陈莉,程言君..耐污染聚酰胺复合纳滤膜的制备及性能[J].化工进展,2012,31(5):1088-1095,8.基金项目
国家高技术研究发展计划(2009AA063901)、国家科技支第撑计划(2011BAB02803)及国家科技部科研院所技术开发研究专项的资金项目(2010EGlll021、201lEGlll021). ()