中国造纸学报2025，Vol.40Issue(4)：1-11,11.DOI:10.11981/j.issn.1000-6842.2025.04.01
基于球磨辅助低共熔溶剂的溶解浆反应活性提升研究
Study on Enhancing the Reactivity of Dissolving Pulp Using Ball Milling-assisted Deep Eutectic Solvents
摘要
Abstract
In this study,the refined cotton dissolving pulp was treated using ball milling in combination with five deep eutectic solvents(DES),and the treated pulp was used as the raw material to prepare cellulose acetate(CA)and its film materials.The results demonstrated that this combined approach synergistically promoted fiber fibrillation and cellulose depolymerization,effectively disrupting the fiber morphol-ogy and hydrogen bond network.This led to a reduction in the degree of polymerization(DP)and crystallinity,thereby significantly enhanc-ing its reactivity.After treatment with choline chloride/oxalic acid DES,the DP of the pulp decreased from 1 227 to 572,the crystallinity dropped from 80.1%to 71.3%,and the content of intramolecular hydrogen bond O(3)H⋯O(5)declined from 62.43%to 46.79%.The ob-tained CA films exhibited excellent light transmittance and mechanical properties.The films derived from choline chloride/acetic acid DES-treated pulp showed the highest mechanical performances,with tensile strength at break and strain at break reaching(60.8±1.2)MPa and(12.6±0.3)%,respectively.关键词
溶解浆/低共熔溶剂/球磨/醋酸纤维素Key words
dissolving pulp/deep eutectic solvents/ball milling/cellulose acetate分类
轻工纺织引用本文复制引用
赵辉,高子骏,邱浩涵,王美鑫,李鑫,许凤..基于球磨辅助低共熔溶剂的溶解浆反应活性提升研究[J].中国造纸学报,2025,40(4):1-11,11.基金项目
国家自然科学基金项目(22308027) （22308027）
北京林业大学"5·5工程"科研创新团队项目(BLRC2023B01). （BLRC2023B01）
