高校化学工程学报2024，Vol.38Issue(2)：310-318,9.DOI:10.3969/j.issn.1003-9015.2024.02.016
利用乙烯醇-乙烯胺共聚物制备交联可控的耐酸渗透蒸发脱盐复合膜
Controllable cross-linking of VA-co-VAm composite membrane for pervaporation desalination under acidic conditions
摘要
Abstract
In order to prepare desalination membranes with controllable cross-linking degree and acid resistance,a vinyl alcohol-vinylamine copolymer(VA-co-VAm)containing both amino and hydroxyl groups was synthesized.The cross-linked membrane was prepared using glutaraldehyde as a cross-linking agent under acidic conditions.Cross-linking degree can be carefully controlled based on the reaction between glutaraldehyde and hydroxyl groups under acidic conditions.The polymer materials and composite membranes were characterized,and the effects of polymer composition,pH of feed solution,and other factors on membrane desalination performance were studied.The results show that the composite membrane exhibits good performance under acidic conditions.Specifically,the water flux of composite membrane exceeded 12 kg·m-2·h-1 with salt rejection over 99.95％when treating a 35 g·L-1 NaCl solution(pH=1)at 60℃.The prepared membrane offers a promising platform for desalination treatment of high salt concentrated water under acidic conditions.关键词
渗透蒸发/脱盐/聚合物/耐酸膜/可控交联Key words
pervaporation/desalination/polymer/acid resistant membrane/controllable cross-linking分类
化学化工引用本文复制引用
付佳雯,郝妙莉,董晨曦,何欣平,吴东云,伊春海..利用乙烯醇-乙烯胺共聚物制备交联可控的耐酸渗透蒸发脱盐复合膜[J].高校化学工程学报,2024,38(2):310-318,9.基金项目
国家自然科学基金(22208257). （22208257）
