中国塑料2024，Vol.38Issue(6)：51-59,9.DOI:10.19491/j.issn.1001-9278.2024.06.008
刚性基团桥接聚硅氧烷/乙基纤维素混合膜的制备及其CO2的分离
Preparation of rigid-group-bridged polysiloxanes/ethylcellulose mixed membranes for CO2 separation
摘要
Abstract
Three types of rigid-group-bridged polysiloxanes-modified ethylcellulose(EC)mixed membranes were pre-pared by using three bridged-polysiloxanes with different rigid groups of hexafluoroimide,naphthalimide,and fluorene as modifiers and EC as a substrate,through solution co-blending and coating.The three mixed membranes exhibited a good film formation ability,high mechanical properties,and good thermal stability.Compared to pure EC membrane,the three mixed membranes gained an improvement in the permeability of CO2 without sacrificing selectivity(CO2/N2 and CO2/CH4).Especially,the naphthalimide bridged-polysiloxanes obtained a CO2 permeation coefficient of over 213 bar-rers,which is 4.9 times higher than pure EC membrane.关键词
桥接聚硅氧烷/乙基纤维素/混合膜/气体分离Key words
bridged-polysiloxanes/ethyl cellulose/mixed membrane/gas separation分类
化学化工引用本文复制引用
范文轩,徐双平,贾宏葛,张明宇,蘧延庆..刚性基团桥接聚硅氧烷/乙基纤维素混合膜的制备及其CO2的分离[J].中国塑料,2024,38(6):51-59,9.基金项目
国家自然科学基金青年基金(52203093) （52203093）
黑龙江省聚合物基复合材料重点实验室开放课题(CLKFKT2021B10) （CLKFKT2021B10）
