新型亲水性复合纳滤膜的研究  

Study of novel hydrophilic composite nanofiltration membrane

作　　者：曹绪芝[1] 平郑骅[2] 李本刚[1] 郭斌[1] 

机构地区：[1]南京林业大学理学院化学与材料科学系,江苏南京210037 [2]复旦大学高分子科学系教育部聚合物分子工程重点实验室,上海200433

出　　处：《功能材料》2013年第11期1612-1615,1619,共5页Journal of Functional Materials

基　　金：国家自然科学基金资助项目(20904021);南京林业大学高学历人才资助项目(B2009-9)

摘　　要：通过在酚酞基聚芳醚酮(PEK-C)微孔膜表面紫外辐照分步接枝对苯乙烯磺酸钠(SSS)和二甲基二烯丙基氯化铵(DADMAC)制备了一种新型的含有铵基的高通量亲水性复合纳滤膜。通过测定膜的纯水通量和对不同盐溶液的表观截留率的变化,系统研究了接枝时间和操作条件对膜分离性能的影响。结果表明,该复合纳滤膜不仅对高价阴离子盐溶液Na2SO4具有较高的表观截留率和渗透通量,对由高价正离子和高价负离子组成的盐溶液(MgSO4)同样具有较好的截留率。A novel hydrophilic composite nanofiltration membrane was prepared by UV irradiation two-step graft polymerization of sodium styrene sulfonate（SSS）and diallydimethyl ammonium chloride（DADMAC）onto the surface of ultrafiltration membranes made of polyetherketone cardo（PEK-C）.The effect of the irradiation time and operation conditions on the membrane performance was studied by measuring the salt retention through the membrane.The results showed that the composite nanofiltration has high retention and permeation flux to high valent anionic salts and salts composed of high valent co-ions and counter-ions.

关 键 词：UV接枝 酚酞基聚芳醚酮 复合纳滤膜 二甲基二烯丙基氯化铵 苯乙烯磺酸钠 

分 类 号：TQ028.8[化学工程]