摘要
概述纤维素溶剂的研究进展,介绍衍生物法和直接溶解法两大类纤维素溶剂。衍生物溶剂主要包括氢氧化钠/CS2、多聚甲醛/二甲基亚砜等。该类溶剂都是先与纤维素反应生成纤维素衍生物,然后将衍生物溶解。直接溶解法包括了传统的碱/硫脲/水体系、碱/尿素/水体系,以及新型纤维素溶剂NMMO、离子液体等,这类溶剂溶解纤维素的过程都为物理过程。比较了不同体系的溶解机理以及优缺点。
Advance of solvents of cellulose was summarized in this article. The solvents of derivative method and direct dissolution were reviewed.＇ The derivative solvents include sodium hydroxide/carbon disulfide, paraformaldehyde/DMSO. Firstly, this type solvents reacted with cellulose to produce cellulose derivatives, then the derivatives was dissolved. The solvents of direct dissolution include alkali/thiourea/water, alkali/urea/water, and novel cellulosic solvents：N-Methylmorpholine-N-oxide （NMMO）, Ionic liquid etc. This progress of dissolving cellulose is physical. The dissolution mechanism, advantages and disadvantages were compared, this paper mainly elaborates NMMO and Ionic liquid.
出处
《纸和造纸》
北大核心
2009年第12期26-31,共6页
Paper and Paper Making
关键词
纤维素溶剂
离子液体
衍生物
纤维素溶液
cellulose solvent
ionic liquid
derivation
cellulose solution
