纤维素科学与技术2025，Vol.33Issue(1)：21-26,6.DOI:10.16561/j.cnki.xws.2025.01.02
棉纤维素在离子液体/共溶剂中的流变性能及纺丝再生
Rheological Properties and Spinning Regeneration of Cotton Cellulose in Ionic Liquid/Cosolvent
摘要
Abstract
s:Based on the 1-butyl-3-methylimidazole acetate/dimethyl sulfoxide(BMIMAOC/DMSO)(w/w=1∶1)system,a direct recycling method for waste cotton textiles was proposed.The dissolution properties and degradation of waste cotton textiles in BMIMAOC/DMSO and the rheological properties of the cellulose solution were studied.The optimal spinning process was obtained through orthogonal experiments.The results indicate that the BMIMAOC/DMSO system can dissolve cellulose mildly and efficiently at 60℃with low cellulose degradation.The cellulose/BMIMAOC/DMSO solution is a pseudoplastic fluid.In the cellulose concentration range of 1%(wt)to 3%(wt)the zero shear viscosity activation energy is not significantly affected by the concentration,but decreases with the increase of the shear rate.The strength of the regenerated cellulose fibres is 2.36 cN/dtex under the spinning process with a cellulose concentration of 3%(wt),a coagulation bath concentration of 5%(wt),a coagulation bath temperature of 25℃and a draw ratio of 8.关键词
废旧棉纺织品/BMIMAOC/DMSO/流变性能/再生纤维素纤维Key words
waste cotton textiles/BMIMAOC/DMSO/rheological properties/regenerated cellulosic fibres分类
轻工纺织引用本文复制引用
吴秀桓,朱安宇,郭晋洲,饶秉钧,李卫东..棉纤维素在离子液体/共溶剂中的流变性能及纺丝再生[J].纤维素科学与技术,2025,33(1):21-26,6.基金项目
科技部国家重点研发计划(2021YFF0601200). （2021YFF0601200）
