超弹性液态金属基摩擦电纤维和织物  

Super-elastic Liquid Metal-based Triboelectric Fibers and Textiles

作　　者：潘胜利 何蕙羽 程昭晨 辛利桃 李彪[1] 王璞[1] PAN Shengli;HE Huiyu;CHENG Zhaochen;XIN Litao;LI Biao;WANG Pu(Institute of Laser Engineering,Faculty of Materials and Manufacturing,Beijing University of Technology,Beijing 100124,China)

机构地区：[1]北京工业大学材料与制造学部激光工程研究院,北京100124

出　　处：《北京工业大学学报》2025年第3期327-336,共10页Journal of Beijing University of Technology

基　　金：国家自然科学基金资助项目(62035002)。

摘　　要：为了解决摩擦电纤维在制备工艺、柔软性、灵变性等方面的问题,以液态金属EGaIn作为导电电极、热塑性弹性体材料作为纤维套管,采用挤压-填充技术研制了超弹性摩擦电纤维。该纤维能够承受2200%的应变,并表现出优异的电输出性能。以5 cm的单根纤维作为介质进行摩擦电能采集,当纤维与纸接触时可提供7 V的未饱和平均开路电压;同时在200 MΩ的外部负载电阻下,瞬时功率密度可达1.6μW/m。将该纤维编织成8 cm×8 cm织物,电输出可达120 V、280 nA、28 nC。研究表明,挤压-填充技术为研制可拉伸摩擦电纤维提供了一种有效的新途径,该超弹性纤维有望应用于多功能可穿戴智能织物。To solve the problems of preparation process,flexibility,and flexibility of friction electric fibers,super-elastic triboelectric fibers were prepared by using an extrusion-filling method.The liquid metal EGaIn and thermoplastic elastomer material were used as the conductive electrode and the fiber sleeve,respectively.The fiber could sustain strains up to 2200% and exhibited high electrical outputs.By using a 5 cm long fiber as the medium,the fiber can provide an unsaturated average open circuit voltage of 7 V when in contact with paper;and the instantaneous power density of 1.6μW/m was obtained with an external load resistance of 200 MΩ.Weaning the fiber into an 8 cm×8 cm textile,the max electrical outputs were 120 V,280 nA,28 nC.Results show that the extrusion-filling technology is an effective way to develop stretchable triboelectric fibers.The super-elastic fibers in this work have the potential for multi-functional wearable smart textiles applications.

关 键 词：柔性可穿戴 摩擦纳米发电机 超弹性 纤维 织物 电输出 

分 类 号：TB857.3[一般工业技术—摄影技术]