石油化工2026，Vol.55Issue(3)：365-371,7.DOI:10.3969/j.issn.1000-8144.2026.03.007
新型荷正电纳滤膜的制备及性能
Preparation and performance of a novel positively charged nanofiltration membrane
龙蔚 1张杨 1赵国珂 1李煜 1潘国元 1刘轶群1
作者信息
- 1. 中石化(北京)化工研究院有限公司,北京 100013
- 折叠
摘要
Abstract
A green fabrication strategy based on the Mannich reaction and epoxy-quaternary ammonium salt ring-opening reaction was employed to construct a novel positively charged nanofiltration membrane with high separation performance.The prepared nanofiltration membrane was characterized by FTIR,XPS,and SEM,and its surface properties and permeation-separation performance were evaluated and compared with conventional commercial nanofiltration membranes.The experimental results show that the prepared nanofiltration membrane achieves a water flux of 82.5 L/(m2·h)and a salt rejection rate of 71.0%for tap water at 0.3 MPa,while beneficial minerals are retained.Compared with traditional polyamide membranes,the prepared membrane does not require an organic-phase step in the traditional interfacial polymerization process and exhibits high water permeability,efficient separation performance,and environmental friendliness.This membrane provides a low-cost and industrially promising solution for healthy drinking water purification.关键词
纳滤膜/曼尼希反应/季铵盐修饰/无界面聚合Key words
nanofiltration membrane/Mannich reaction/quaternary ammonium salt modification/non-interfacial polymerization分类
化学化工引用本文复制引用
龙蔚,张杨,赵国珂,李煜,潘国元,刘轶群..新型荷正电纳滤膜的制备及性能[J].石油化工,2026,55(3):365-371,7.
