天津工业大学学报2017，Vol.36Issue(5)：12-15,4.DOI:10.3969/j.issn.1671-024x.2017.05.003
聚丙烯腈膜改性制备正渗透复合膜基膜
Forward osmosis composite base membranes prepared by modifying polyacrylonitrile membranes
摘要
Abstract
The hydrophilic polyacrylonitrile(PAN)membrane was prepared by grafting hpolyethylenimine(HPEI)onto the surface of PAN membrane in order to improve the hydrophilicity of the PAN membrane. Forward osmosis composite membrane was prepared by interfacial polymerization on the modified membrane surface.The results show that the contact angle was declined from 64.5°to 23.4°.But the pore size of the PAN-g-PEI membrane was decreased compared with the PAN membrane. The pure water flux of the prepared forward osmosis composite membrane was declined from 7.4 L/(m2·h)to 3.5 L/(m2·h);and the salt reverse flux of the FO membrane was also declined from 38.7 g/(m2·h)to 22.2 g/(m2·h),which illustrated that the hydrophilicity of the PAN-g-PEI membrane was improved obviously.关键词
聚丙烯腈膜/界面聚合/亲水改性/正渗透膜Key words
polyacrylonitrile membrane/interfacial polymerization/hydrophilic modification/forward osmosis membrane分类
轻工纺织引用本文复制引用
张宇峰,张丽杰,孟建强..聚丙烯腈膜改性制备正渗透复合膜基膜[J].天津工业大学学报,2017,36(5):12-15,4.基金项目
国家自然科学基金资助项目(21574100,21274108) （21574100,21274108）
