聚丙烯酸钠荷负电膜的制备及分离特性研究  

Preparation and separating performance of polyacrylic sodium charged membrane

作　　者：罗远宏[1] 肖凯军[1] 楼雅青[1] 郭祀远[1] 蔡妙颜[1] 

机构地区：[1]华南理工大学轻化工所,广州510640

出　　处：《膜科学与技术》2007年第1期41-44,共4页Membrane Science and Technology

基　　金：广东省科技攻关项目(2004B10201001);国家自然科学基金资助项目(20006005)

摘　　要：采用含浸法制备聚丙烯酸钠荷负电超滤膜,研究了聚丙烯酸钠含量、含浸时间、交联剂、乙酸和乙醇加入量等因素对膜性能的影响,利用红外光谱分析膜组成变化,获得制备聚丙烯酸钠荷电膜的合适条件.研究结果表明,实验制备得到的荷负电膜引入了羧基基团,膜的透过率影响较少,而截留率比未改性膜提高了9倍,由9.23%增加到89.02%.The polyacrylic sodium charged membrane was prepared under different experimental conditions. The effects of the contents of polyacrylic sodium, crosslinking agent, acetic acid and ethanol, and the dip - coating time on the membrane performances were investigated. It is shown that carboxyl group is introduced into the charged membrane by infra - red spectrum, and the modified membrane rejection has significant increase from 9.23 % to 89.02 % while the membrane flux has only slight decrease.

关 键 词：荷电膜 聚丙烯酸钠 透过率 截留率 

分 类 号：O484.42[理学—固体物理]