不同溶解体系纤维素基气凝胶的研究进展

Research progress on cellulose aerogels with different dissolving system

纤维素气凝胶具有低密度、高比表面积及高孔隙率等特性,已经在化工、建筑、造纸、材料等领域得到了广泛的应用。高效的纤维素溶剂是开发利用纤维素气凝胶的前提条件,本文介绍了一些常用的纤维素溶剂及其溶解机理;介绍了纤维素气凝胶材料的制备流程,并着重阐述了各种纤维素气凝胶材料的最新研究进展,最后对纤维素基气凝胶材料的未来发展进行了展望。

Cellulose aerogels with the characteristics of lowdensity, high specific surface area and high porosity have beenwidely used in the felds of chemical industry, construction, paperindustry and materials. It is the effcient cellulose solvent that isthe prerequisites of the development and utilization of celluloseaerogels. Herein, some common used cellulose solvents andtheir mechanisms was introduced. The latest research progresson various kinds of cellulose aerogels was discussed, presentingthe preparation process of cellulose aerogels. Finally, the futuredevelopment of cellulose-based aerogels was prospected.