棉纺织技术2025，Vol.53Issue(4)：8-15,8.
液态金属导电传感纱线的制备及其传感性能
Preparation and sensing property of liquid metal conductive sensing yarn
摘要
Abstract
To develop a highly sensitive flexible yarn strain sensor,a polyurethane(PU)nanofiber conductive sensing yarn embedded with liquid metal(LM)and carbon nanotubes(CNT)was fabricated in a single step using conjugate electrostatic spinning and electrostatic spraying technique.The yarn was assembled into a yarn-based strain sensor.The morphology,mechanical property and electrical conductivity of the conductive sensing yarn were characterized,the strain sensing and application performance of the yarn sensor were evaluated.The results showed that the prepared sensing yarn possessed better flexibility and stretchability(with a break elongation rate of 100%)as well as electrical conductivity(with a resistance of 20 kΩ).The sensitivity coefficients of the assembled yarn-type strain sensors in the strain ranges of 0.3%～30%,30%～60%and 60%～100%were 0.060 5,0.377 9 and 1.074 5,respectively.The sensors exhibited excellent cyclic stability and reliability in strain response,and demonstrated better strain sensing performance in detecting various human motion states.It is concluded that the LM/CNT/PU yarn sensors can conform closely to different parts of the human body,enabling monitoring of a wide range of movements,from large joint motions to subtle muscle activities,which makes them highly promising for applications in smart textiles,health monitoring and soft robotics.关键词
共轭静电纺丝/静电喷雾/导电传感纱线/液态金属/应变传感Key words
conjugate electrostatic spinning/electrostatic spray/conductive sensing yarn/liquid metal/strain sensing引用本文复制引用
齐琨,苏宇,宋玉堂,何昕宇,欧康康..液态金属导电传感纱线的制备及其传感性能[J].棉纺织技术,2025,53(4):8-15,8.基金项目
国家自然科学基金-青年基金项目(52303119) （52303119）
河南省科技攻关项目(242102220096) （242102220096）
河南省高等学校重点科研项目(23A540001) （23A540001）
中国博士后科学基金面上资助项目(2021M70145-0) （2021M70145-0）
中原工学院青年骨干教师资助项目(2023XQG02) （2023XQG02）
中原工学院优势学科实力提升计划项目(SD202221,SD202222) （SD202221,SD202222）
