Advanced nanocellulose-based gas barrier materials: Present status and prospects

编号 020032503

推送时间 20220110

研究领域 林产化工 

年份 2022 

类型 期刊 

语种 英语

标题 Advanced nanocellulose-based gas barrier materials: Present status and prospects

来源期刊 Chemosphere

期 第325期

发表时间 20210814

关键词 Nanocellulose;  Gas barrier;  Layer-by-layer materials;  Composites;  Biomaterials; 

摘要 Nanocellulose based gas barrier materials have become an increasingly important subject, since it is a widespread environmentally friendly natural polymer. Previous studies have shown that super-high gas barrier can be achieved with pure and hierarchical nanocellulose films fabricated through simple suspension or layer-by-layer technique either by itself or incorporating with other polymers or nanoparticles. Improved gas barrier properties were observed for nanocellulose-reinforced composites, where nanocellulose partially impermeable nanoparticles decreased gas permeability effectively. However, for nanocellulose-based materials, the higher gas barrier performance is jeopardized by water absorption and shape deformation under high humidity conditions which is a challenge for maintaining properties in material applications. Thus, numerous investigations have been done to solve the problem of water absorption in nanocellulose-based materials. In this literature review, gas barrier properties of pure, layer-by-layer and composite nanocellulose films are investigated. The possible theoretical gas barrier mechanisms are described, and the prospects for nanocellulose-based materials are discussed.

服务人员 尚玮姣

服务院士 宋湛谦

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