中国造纸学报2025，Vol.40Issue(4)：12-19,8.DOI:10.11981/j.issn.1000-6842.2025.04.12
低共熔溶剂预处理对溶解浆纤维形貌结构及溶解效率构效关系影响的研究
Study on the Effect of Structure-Activity Relationship for Morphology and Dissolution Efficiency Dissolving Pulp of Fibers Treated with Deep Eutectic Solvents
摘要
Abstract
To improve the homogeneity of the cellulose/N-methylmorpholine-N-oxide(NMMO)solution during Lyocell fiber production,this study investigated the response relationship between three deep eutectic solvents,morphology characteristics,and dissolution efficiency.The pretreatment solvents were choline chloride/oxalic acid,choline chloride/phosphoric acid,and zinc chloride/phosphoric acid,respectively.Among them,the zinc chloride/phosphoric acid system could disrupt the hydrogen bond network of cellulose,reducing intramolecular hydro-gen bond content by 26%.Simultaneously,the zinc chloride/phosphoric acid system accelerated the dissociation and dispersion of cellulose fibers,increasing fine contents of dissolving pulp from 3.1%to 62.7%.Moreover,the specific surface area and total pore volume improved by 181%and 70%,respectively.Overall,the zinc chloride/phosphoric acid system shortened the dissolution time from 40 min to 10 min,in-dicating the superiority of the zinc chloride/phosphoric acid system in deep eutectic solvent pretreatment methods.关键词
溶解浆/纤维素纤维/低共熔溶剂/纤维形貌结构/溶解效率/Lyocell纤维Key words
dissolving pulp/cellulose fibers/deep eutectic solvent/fiber morphology structure/dissolution efficiency/Lyocell fiber分类
轻工纺织引用本文复制引用
郭玉倩,张美文,宋佳翼,程芸,侯磊磊,陈铃华,陈朗谦,王瑾瑜,张红杰..低共熔溶剂预处理对溶解浆纤维形貌结构及溶解效率构效关系影响的研究[J].中国造纸学报,2025,40(4):12-19,8.基金项目
国家自然科学基金(32171727) （32171727）
中国轻工集团科技创新基金项目(ZQ2024JC-QN01) （ZQ2024JC-QN01）
制浆造纸国家工程实验室基金项目(ZZY2024QNRC03) （ZZY2024QNRC03）
中国科学技术协会青年人才托举工程(2024QNRC0680). （2024QNRC0680）
