纤维素纤维基阴离子吸附剂制备研究进展：预处理及阳离子化改性

Research Progress in the Preparation of Cellulose Fiber-based Anionic Adsorbents— Pretreatment and Cationic Modification

中文关键词:  纤维素纤维  预处理  阳离子化  阴离子吸附剂

Key Words:cellulose fiber  pretreatment  cationization, anionic adsorbent

中文摘要:

      针对纤维素纤维材料化学组成复杂、组织结构致密，直接用于制备阴离子吸附剂的吸附性能差，应用价值低的问题，研究者在改善基材纤维素上羟基的可及性、反应活性、阳离子化改性及其对阴离子物质的吸附性能方面进行了深入研究。本文主要讨论了纤维素纤维材料的多种预处理和阳离子化改性技术相关研究及进展，阐述了不同预处理和阳离子化改性技术提高纤维素羟基反应活性与阳离子化改性纤维素纤维的反应机理，并对制备的纤维素纤维基阴离子吸附剂的吸附性能做了介绍。

Abstract:

      Aiming at the problems of complex chemical composition and dense structure of cellulose fiber materials， its poor adsorption performance and low application value when directly used to prepare anionic adsorbents， researchers have carried out in-depth research on improving the accessibility and reaction activity of hydroxyl groups on cellulose， cationic modification of cellulose and its adsorption performance on anionic substances. This paper mainly discussed the research progress of various pretreatment technologies and cationic modification technologies of cellulose fiber materials， expounded the mechanism of different pretreatment and cationization modification technologies in improving the reaction activity of cellulose hydroxyl group and the cationization reaction of cellulose fiber， and the adsorption performance of the as-prepared cellulose fiber-based anionic adsorbent was introduced as well.