纳米纤维素基金属复合功能材料研究进展

Research progress of nanocellulose-based metal composite functional materials

纤维素是自然界中储量丰富、生长周期短和分布广泛的可再生生物高分子聚合物。纳米纤维素因其尺寸小、光学透明性、优异的机械性能等,被广泛应用于薄膜材料、水凝胶、气凝胶等领域。传统的纤维素材料较为环保,但存在功能单一等不足。采用纳米纤维素与金属类化合物复合制备功能材料,将赋予纳米纤维特殊的性能和功能。总结了纤维素的来源、溶解性及纳米纤维素的制备方法,同时对纳米纤维素金属复合功能材料的磁、介电、铁电以及荧光性质进行了相应的阐述。

Cellulose is a kind of renewable biopolymer with abundant reserves,wide distribution and short growth cycle.Nanocellulose has been widely used in film materials,hydrogel,aerogel and other fields due to its small size,excellent optical transparency and mechanical properties.The traditional cellulose materials are more environmentally friendly,but have some shortcomings such as single function.Compounding nanocellulose with metal to prepare functional materials will give special properties and functions to the nanofibers.The source and solubility of cellulose and the preparation methods of nanocellulose were summarized in the paper.At the same time,the magnetic,dielectric,ferroelectric and fluorescence properties of nanocellulose-based metal composite functional materials were also described.