天津工业大学学报2013，Vol.32Issue(3)：1-7,7.
新型聚醚砜/磺化聚醚砜共混超滤膜的制备及性能
Preparation and characterization of novel PES/SPES blend ultrafiltration membranes
摘要
Abstract
Novel polyethersulfone/sulfonated polyethersulfone (PES/SPES) blend ultrafiltration membranes were prepared via phase inversion,and the effect of SPES/PES ratio and the degree of sulfonation (DS) of SPES solution on morphology and properties of membranes were investigated.The results showed an excellent compatibility between PES and SPES.The sulfonic acid groups of SPES accumulated onto the membrane surface during phase separation process.All membranes presented asymmetric structure consisting of a dense skin layer and a porous sub-layer.With increasing DS of SPES solution,the finger-like structure of membrane tended to change into sponge-like structure.With 11.5％ DS of SPES and 0.36 of SPES/PES ratio,the pure water flux of blend membrane was 211.9 L/(m2 ·h),and the rejection rate for PEG20000,PEG10000 and PEG6000 were 96.6％,88.5％ and 58.3％,respectively.The rejection rate of Na2SO4 for blend membranes decreased with increasing of salts concentration.The hydrophilicity of blend membrane was improved obviously through hydrophilic modification.关键词
聚醚砜/磺化聚醚砜/超滤/共混膜Key words
PES/ SPES/ ultrafiltration/ blend membrane分类
轻工纺织引用本文复制引用
赵津礼,张玉忠,林立刚,丁晓丽,赵莉芝,叶卉,李泓..新型聚醚砜/磺化聚醚砜共混超滤膜的制备及性能[J].天津工业大学学报,2013,32(3):1-7,7.基金项目
国家自然科学基金项目(51173132,50973083) （51173132,50973083）
国家自然科学基金青年基金项目(21206121,21006070,21204064) （21206121,21006070,21204064）
高等学校博士学科点专项科研基金(20091201120002,20111201110003) （20091201120002,20111201110003）
天津市应用基础及前沿技术研究计划重点项目(11JCZD-JC21200,11JCZDJC23700) （11JCZD-JC21200,11JCZDJC23700）
中空纤维膜材料与膜过程省部共建国家重点实验室培育基地开放课题 （）
