A novel strategy for producing high-performance continuous regenerated fibers with wool-like structure  

作　　者：Guang Sheng Cao Ze Ping Zhang Min Zhi Rong Ming Qiu Zhang 

机构地区：[1]Materials Science Institute,Key Laboratory for Polymeric Composite and Functional Materials of Ministry of Education,GD HPPC Lab,School of Chemistry,Sun Yat-Sen University,Guangzhou,P.R.China

出　　处：《SusMat》2022年第1期90-103,共14页可持续发展材料（英文）

基　　金：National Natural Science Foundation of China,Grant/Award Numbers:52033011,51773229,51873235,51973237;Natural Science Foundation of Guangdong Province,Grant/Award Numbers:2019B1515120038,2021A1515010417,2020A1515011276;Science and Technology Planning Project of Guangdong Province,Grant/Award Number:2020B010179001;Industry-University-Research Collaboration Project of Zhuhai City,Grant/Award Number:ZH22017001200004PWC。

摘　　要：We proposed a novel approach to prepare high-performance continuous regenerated keratin fibers with wool-like structure by using the cortical cells and linear keratin from wool waste as reinforcement and adhesive,respectively.The spindle-shaped cortical cells were taken from wool waste based on the different responses of cortical cells and mesenchyme in wool to the treatments of H_(2)O_(2) oxidation and ultrasonication.The linear keratin was yielded through dissolving wool waste in the green solution consisting of starch derived dithiothreitol and protein denaturant sodium dodecyl sulfate.The recycled keratin fibers were produced by wet-spinning of the mixture solution comprising of cortical cells,linear keratin and toughener poly(ethylene glycol)diacrylate,and crosslinked by glutaraldehyde and 4,4′-methylenebis-(phenyl isocyanate).The cortical cells were aligned along the regenerated fibers axis and retained quite a fewα-helical crystals of the intermediate filaments,benefitting improvement of mechanical properties.Consequently,the valuable chemical compositions and hierarchical microstructures of wool were largely inherited.Their mechanical properties,thermal stability,dyeing property,moisture absorption capability,and antistatic resistance resembled those of wool.The regenerated fibers contained 93.3 wt.%components of wool,and the amount of synthetic chemicals in the regenerated fibers was controlled to as low as 6.7 wt.%.

关 键 词：continuous regenerated fibers cortical cells KERATIN WET-SPINNING wool waste 

分 类 号：TS1[轻工技术与工程—纺织科学与工程]