中国塑料2024，Vol.38Issue(10)：1-4,4.DOI:10.19491/j.issn.1001-9278.2024.10.001
分子量对聚丙烯腈超滤膜的性能影响
Influence of molecular weight on performance of polyacrylonitrile ultrafiltration membrane
摘要
Abstract
This article reported an investigation on the structure and performance of the polyacrylonitrile(PAN)ultrafiltra-tion membranes prepared by a phase-transformation method using four types of PAN with different viscosity average-mo-lecular weights(Mη≈2.2×105 g/mol,6×105 g/mol,7×105 g/mol,8×105 g/mol).PEG-4000 or SiO2 as a common ad-ditive was added to the solution to adjust the microstructure and performance of the ultrafiltration membranes.The results indicated that the water flux and retention flux of the ultrafiltration membranes decreased with an increase in the molecular weight of PAN.However,there is a reduction in the finger shaped-hole and hydrophilicity with an increase in the molecular weight of PAN.In contrast,the finger shaped-hole and hydrophilicity were improved with the addition of the additives.Meanwhile,the water flux of the PAN ultrafiltration membrane with a high molecular weight increased from 100 to 3 000 L/(h·bar)after the addition of the additives,and the average concentration of the filtered oil-water mixture was 5 mg/L.关键词
聚丙烯腈/分子量/超滤膜/添加剂/相转化Key words
polyacrylonitrile/molecular weight/ultrafiltration membrane/additive/phase transformation分类
化学化工引用本文复制引用
王春奇,张雷,黄炎培,付中禹..分子量对聚丙烯腈超滤膜的性能影响[J].中国塑料,2024,38(10):1-4,4.基金项目
吉林省碳纤维重大科技专项(YDZJ202203CGZH025) （YDZJ202203CGZH025）
吉林省碳纤维产业创新中心(2022C002) （2022C002）
