天津工业大学学报2017，Vol.36Issue(6)：6-10,5.DOI:10.3969/j.issn.1671-024x.2017.06.002
凝固浴组成对聚醚砜/磺化聚砜共混膜结构及性能影响
Effect of coagulation bath composition on structure and performance of PES/SPSf blend membrane
摘要
Abstract
In order to study the effect of coagulation bath composition on the structure and property of polyethersulfone (PES)/sulfonated polysulfone (SPSf) blend membrane, the PES/SPSf blend membranes were prepared via non-solvent induced phase separation using PES and SPSf as membrane materials, N,N-dimethylacetamide(DMAc) as solvent, PEG as pore forming agent and H2O as non-solvent addition. The PES/SPSf blend membrane was characterized by SEM, pure water flux, BSA rejection and so on. The effects of coagulation bath composition on the structure and performance of membrane were investigated. The results indicated that all the membranes obtained from the coagulation bath with different compositions possessed the sponge-like structure. The pure water flux of the obtained blend membrane was 920 L/(m2·h) when the pure water was employed as the coagulation bath. The thickness of skin layer reduced when a salt solution was added in the coagulation bath. Specially, the thickness of skin layer was 2.5μm and the water contact angle was 64°, and the pure water flux of the obtained blend membrane was up to 1024 L/(m2·h) when NaCl solution was used as the coagulation bath.关键词
聚醚砜/磺化聚砜/共混膜/凝固浴/浸没沉淀相转化Key words
polyethersulfone(PES)/sulfonated polysulfone(SPSf)/blend membranes/coagulation bath/non-solvent in-duced phase separation(NIPS)分类
轻工纺织引用本文复制引用
李建新,张雷,胡梦洋,李建,崔振宇..凝固浴组成对聚醚砜/磺化聚砜共混膜结构及性能影响[J].天津工业大学学报,2017,36(6):6-10,5.基金项目
国家自然科学基金资助项目(21376176 （）
51303130) （）
