摘要
包装内环境气氛对产品的性能具有重要的影响。选择合适的包装材料,控制包装内环境气氛的成分与含量,可有效延长产品的储存时间与使用寿命。为了实现良好的包装内环境气氛控制效果,包装材料需具备合适的气体分离性能。聚酰亚胺因其优异的气体分离性能、热稳定性和结构可设计性等特点受到关注,但气体渗透-选择性的平衡问题限制了其广泛应用。梳理了聚酰亚胺气体分离膜性能的研究进展,重点阐述了如何通过分子结构设计实现聚酰亚胺致密膜与微孔膜的性能调控,并对聚酰亚胺基气体分离膜材料的发展进行了展望。
The ambient atmosphere in the package has an important impact on the performance of products.Using suitable packaging materials to control the composition and content of the ambient atmosphere in the package can effectively prolong the service life and storage time of products.In order to achieve excellent atmosphere control,packaging materials need to have suitable gas separation properties.Polyimide has attracted extensive attention owing to its excellent gas separation performance and thermal stability,but the gas permeation-selectivity balance problem limited its wide application.The latest research progress of polyimide gas separation membranes is reviewed,focusing on how to achieve the performance tuning of polyimide dense membranes and microporous membranes through molecular structure design,and provides an outlook on the development of polyimide-based gas separation membrane materials.
作者
陈郁芬
刘学远
李慧鹏
吴迪
黄杰
谭井华
刘亦武
CHEN Yufen;LIU Xueyuan;LI Huipeng;WU Di;HUANG Jie;TAN Jinghua;LIU Yiwu(Key Laboratory of Advanced Packaging Materials and Technology of Hunan Province,College of Packaging and Materials Engineering,Hunan University of Technology,Zhuzhou Hunan 412007,China)
出处
《包装学报》
2022年第5期82-92,共11页
Packaging Journal
基金
国家自然科学基金NSAF联合基金重点项目(U1930203)
湖南省自然科学基金省市联合基金资助项目(2021JJ50004)
湖南省教育厅科学研究基金资助重点项目(21A0364)。
关键词
聚酰亚胺
本征型
分子结构设计
气体分离
polyimide
intrinsic
molecular structure design
gas separation
