共轭电纺聚氨酯基导电纱线的制备及其应变传感性  

Preparation of polyurethane conductive yarn by conjugat electrospinning and its strain sensing properties

作　　者：李淑静[1] 曾媛 朱书月 卫巧凤 丁梦园 李亮[1,2] 刘让同 LI Shujing;ZENG Yuan;ZHU Shuyue;WEI Qiaofeng;DING Mengyuan;LI Liang;LIU Rangtong(Zhongyuan University of Technology,Zhengzhou 451191,China;Collaborative Innovation Center of Advanced Textile Equipment,Zhengzhou 451191,China)

机构地区：[1]中原工学院,河南郑州451191 [2]先进纺织装备技术省部共建协同创新中心,河南郑州451191

出　　处：《印染》2025年第2期17-22,共6页China Dyeing and Finishing

基　　金：河南省研究生教育改革与质量提升工程项目(YJS2022JC20);河南省高等教育教学改革研究与实践项目(2024SJGLX0394);河南省高等学校重点科研项目(25A540001)。

摘　　要：采用共轭静电纺丝法制备了纳米纤维构造的聚氨酯基纱线,借助液相化学沉积法构筑了共轭电纺聚氨酯基导电纱线,研究了其相关结构特征与应变传感性能。结果表明:液相沉淀法将银沉积于共轭电纺聚氨酯基纱线内纳米纤维界面和纳米纤维间隙中,形成连续的银导电层和“桥联作用”的导电区域;该纱线具有较高的应变和应变回复能力,且镀银前后断裂伸长率均高于190%。共轭电纺聚氨酯基导电纱线的电导率高达1.1×10^(4) S/cm,在低应变(0~10%)下灵敏度为1.44,在识别人体脉搏、声带振动及关节屈曲等低应变信号具有优越性,为人体生理监控传感提供一种解决方案。Polyurethane-based yarns with nanofiber structure are prepared by conjugate electrospinning method,and polyurethane-based conductive yarns are constructed by liquid-phase chemical deposition method,and their related structural characteristics and strain sensing performances are studied.The results show that silver is deposited on the nanofiber interface and at nanofiber gap in the polyurethane-based yarn by liquidphase precipitation method,forming a continuous silver conductive layer and a"bridging"conductive region.The yarn has high strain and strain recovery capacity,and the elongation at break is higher than 190%before and after silver plating.The conductivity of polyurethane-based conductive yarn is as high as 1.1×10^(4) S/cm,and the sensitivity is 1.44 under low strain(0~10%).It has superiority in identifying low strain signals such as human pulse,vocal cordvibration and joint flexion,providing a solution for human physiological monitoring and sensing.

关 键 词：共轭静电纺丝 聚氨酯 导电纱线 应变传感性 

分 类 号：TP212[自动化与计算机技术—检测技术与自动化装置] TS106.4[自动化与计算机技术—控制科学与工程]