膜科学与技术

碳纳米管在分离膜材料中的应用

作者：宫晓娜，朱利平，徐又一，朱宝库

单位：浙江大学高分子科学与工程学系，高分子合成与功能构造教育部重点实验室

关键词：碳纳米管；分离膜；传输性质；分离性能；定向排列

出版年,卷(期):页码： 2011,31(5):89-93

摘要：

碳纳米管（CNTs）由于其独特的结构和优异的物理、化学、热学、力学等性质，在分子分离方面存在潜在的应用价值。目前，CNTs在分离方面的研究热点是将其作为分离膜的无机填充物，尤其是用于应用广泛的高分子膜。CNTs作为新型无机填充组分，一方面对气体和液体分子表现出良好的传输能力，另一方面可极大地改善高分子膜的结构和性能。本文回顾了近年来CNTs-高分子混合膜的主要研究工作，概括了CNTs在气体分离膜和液体分离膜的研究进展，并分析了CNTs在聚合物膜中的定向排列。然而，目前尚无理论能完整地解释CNTs对分离膜性质的影响，而CNTs在膜中的良好分散和定向排列也不易实现。

Carbon nanotubes (CNTs) is a novel allotrope of carbon with a unique tubular structure. In recent years, CNTs has been finding more and more applications in the preparation of functional composite materials due to its unique physical, chemical, and thermal properties. Its applications in separation membranes have also drawn much attention recently. These studies mainly focused on using CNT as an inorganic filler of polymeric membranes, It has been shown that CNTs display an excellent transport ability for gas and liquid molecules when used as membrane filler. In this paper, the recently reported work on CNTs-polymer hybrid membranes was reviewed. Subsequently, the alignment of CNTs in polymeric membrane matrix is introduced in brief. However, so far there is no suitable theory to explain the influence of CNTs on separation membrane structures and properties. Also, good dispersion and ordered alignment of CNTs in polymer matrix is still difficult to realize.

宫晓娜（1985- ），女，山东人，硕士生，从事分离膜改性和应用. *通讯联系人＜lpzhu@zju.edu.cn＞

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