纺织科学与工程学报2025，Vol.42Issue(5)：65-73,9.DOI:10.3969/j.issn.2096-5184.2025.05.011
溶剂法化学分离回收聚乳酸/天丝混纺织物
Chemical Separation and Recovery of Polylactic Acid/Tencel Blended Textiles viaSolvent Method
张萍 1马博谋 2王学利3
作者信息
- 1. 东华大学 纺织学院,上海 201600
- 2. 江南大学 纤维工程与装备技术学院,江苏 无锡 214122
- 3. 东华大学 纺织科技创新中心,上海 201600
- 折叠
摘要
Abstract
The solvent method was adopted to separate and recover the PLA component in the waste polylac-tic acid(PLA)/Tencel blended fabric.The effects of different solvents(DMF,DMAc,DMSO and CHCl3),dissolution time and dissolution temperature on the separation process were studied.The physical and chemical properties of the separated products were characterized by scanning electron microscopy,GPC,FTIR and XRD.The results showed that the main components of the residual fabric after recovery were cellulose and a small a-mount of PLA.The structure and properties of the recovered PLA powder did not significantly change compared with those before recovery.Considering the dissolution temperature,time,recovery rate and molecular weight,the optimal dissolution temperature and time of DMF were 110 ℃ and 20 min,with a recovery rate of 95.7％.The optimal dissolution temperature and time of DMAc were 90 ℃ and 40 min,with a recovery rate of 92.3％.The optimal dissolution temperature and time of DMSO were 110℃ and 40 min,with a recovery rate of 95.1％.The recovery rate of CHCl3 was 95.3％.关键词
PLA/天丝织物/分离回收/性能表征Key words
PLA/Tencel fabric/separation and recovery/property characterization分类
轻工纺织引用本文复制引用
张萍,马博谋,王学利..溶剂法化学分离回收聚乳酸/天丝混纺织物[J].纺织科学与工程学报,2025,42(5):65-73,9.
