摘要
随着人工智能的快速发展,导电弹性纤维受到更多科研工作者的关注。然而,目前可拉伸导电纤维的绿色、高效制备及力学性能提升策略匮乏,这严重制约了其进一步应用。为此,本文基于氯化钙(CaCl_(2))-氯化胆碱-丙烯酸,设计了一种新型的可聚合低共熔溶剂体系(CaCl_(2)-PDES)用于绿色、高效地制备羽毛微纤力学增强弹性纤维。结果表明,CaCl_(2)-PDES溶剂体系不仅对羽毛具有可控溶解和剥离的作用,还可实现原位光聚合。当CaCl_(2)的浓度为2 wt.%,溶解温度为120℃时,羽毛能够被溶解为微米级(直径约为5μm)的蛋白质短纤,蛋白质短纤的存在增强了PAA-ChCl基弹性纤维的力学性能(断裂强度提升了1.7倍,0.62 MPa)。蛋白质微纤赋予纤维良好力学性能的同时,也保持了纤维良好的快速、灵敏的传感性能(拉伸、回复的反应时间分别为133 ms和172 ms,GF为0.78~1.44)。这项工作有效缓解了废弃生物质羽毛的高值化再利用的难题,同时为生物质弹性导电纤维的绿色制备提供了新的研究思路。
With the rapid development of artificial intelligence technology,conductive elastic fiber has attracted more attention of researchers.However,there is a lack of green,efficient preparation and mechanical performance improvement strategies of tensile conductive fiber,which seriously restricts its wider application.Polymerizable deep eutectic solvent(PDES)is a good way for preparing ionic conductive gel materials due to its good dissolution ability to a variety of polymers.A new polymerizable deep eutectic solvent system based on calcium chloride-choline chloride-acrylic acid(CaCl_(2)-PDES)was designed for the green preparation of conductive fibers for enhanced mechanical properties of protein microfibers.The results show that when the concentration of CaCl_(2) is 2 wt.%and the dissolution temperature is 120℃,feathers can be decomposed into micron scale(about 5μm in diameter),and the presence of protein staple fibers enhanced the mechanical properties of PAA-ChCl based conductive fibers(1.7 times higher fracture strength,0.62 MPa).While protein microfiber gives fiber good mechanical properties,it also maintains good sensing properties and fatigue resistance and elasticity.The prepared feather ion gel fiber has fast and timely electrical signal response(133 ms and 172 ms respectively)and good sensitivity(GF 0.78~1.44).This work has effectively alleviated the problem of high-value reuse of waste biomass feathers,and provided a new horizon for the green preparation of biomass elastic conductive fiber.
作者
高天
郭志广
刘吉东
吴军
刘新华
GAO Tian;GUO Zhiguang;LIU Jidong;WU Jun;LIU Xinhua(School of Textile and Garment,Anhui Polytechnic University,Wuhu 241000,China;College of Polymer Science and Engineering,Sichuan University,Chengdu 610000,China;School of Chemical and Environmental Engineering,Anhui Polytechnic University,Wuhu 241000,China)
出处
《安徽工程大学学报》
2025年第2期54-59,84,共7页
Journal of Anhui Polytechnic University
基金
国家自然科学基金项目(21302001)
安徽省自然科学基金项目(1908085QE225)。
关键词
羽毛
可聚合低共熔溶剂
离子导电弹性纤维
微纤增强
feather
polymerizable low co-melting solvent
ionic conductive elastic fiber
microfiber enhancement
