应用化学2026，Vol.43Issue(2)：259-274,16.DOI:10.19894/j.issn.1000-0518.250107
改性聚苯并咪唑耐溶剂纳滤膜的制备及性能
Preparation and Properties of Modified Polybenzimidazole Solvent Resistant Nanofiltration Membranes
摘要
Abstract
With the continuous development of our country's industry,more and more organic waste liquid has been produced.Therefore,the separation of solutes from organic solutions and the recovery of solvents have attracted extensive attention.Compared with traditional separation technologies,nanofiltration has been gradually applied to organic solutions due to its advantages of mild operating conditions and low energy consumption,but it is still a major challenge to develop nanofiltration membranes that can exist stably in organic solvents and have good separation performance.In this study,FeCl3·6H2 O and ZnSO4·7H2 O solutions were selected as cross-linking agents to cross-link with polybenzimidazole(OPBI)membranes,and high-performance modified OPBI solvent-resistant nanofiltration membranes were prepared.The morphology and structure of the nanofiltration membranes before and after modification as well as the separation performance were investigated.The experimental results showed that the separation performance of all modified membranes was significantly improved compared with the original OPBI membranes.For example,the retention of rose bengal(RB)in isopropanol(IPA)by the crosslinked OPBI membranes all reached more than 99%.Crosslinked membranes also have good application prospects in drugs and food,with excellent retention of tetracycline in IPA and L-α-lecithin in dichloromethane(DCM).In addition,the crosslinked membranes also have excellent stability in organic solvents and show good stability in strong polar solvents such as N,N-dimethylformamide(DMF)and N,N-dimethylacetamide(DMAc).关键词
聚苯并咪唑/耐溶剂纳滤/交联/金属离子/溶剂稳定性Key words
Polybenzimidazole/Solvent resistant nanofiltration/Crosslinked/Metal ions/Solvent stability分类
化学化工引用本文复制引用
焦丽娜,王晨钰,江娱婷,贺苗苗,陈冬菊..改性聚苯并咪唑耐溶剂纳滤膜的制备及性能[J].应用化学,2026,43(2):259-274,16.基金项目
国家自然科学基金(No.22075121)和大连理工大学精细化工国家重点实验室开放课题项目(No.KF2205)资助 Supported by the National Natural Science Foundation of China(No.22075121)and the Open Project of State Key Laboratory of Fine Chemicals,Dalian University of Technology(No.KF2205) （No.22075121）
