基于纤维骨架增强的柔性表面肌电电极  

Flexible surface myoelectric electrodes based on fiber skeleton reinforcement

作　　者：高振强 王飞 白彦军 GAO Zhenqiang;WANG Fei;BAI Yanjun(School of Mechanical and Automotive Engineering,Qingdao University of Technology,Qingdao 266520,China)

机构地区：[1]青岛理工大学机械与汽车工程学院,山东青岛266520

出　　处：《中国塑料》2024年第7期68-73,共6页China Plastics

基　　金：山东省自然科学基金项目(2018GGX103050)。

摘　　要：提出了一种由聚二甲基硅氧烷(PDMS)/银浆/纤维骨架+柔性银浆+PDMS三层结构组成的柔性表面肌电电极。分析了其在弯曲、扭转等不同外界刺激下的电阻变化情况,通过黏附力测试、超声测试等实验对电极的稳定性进行了测试。结果表明,三层的柔性表面肌电电极具有高导电率(<0.5Ω/sq)、优异的电阻稳定性(1000次弯曲后电阻变化率<3%)、良好的机械稳定性(电极与基底黏附力>1000 N/m)和皮肤一致性。将其应用于肌肉电传感器中,电极能够有效地识别各种运动强度,信噪比比传统的Ag/AgCl凝胶电极和铜电极分别提高了36%和49%。A flexible surface myoelectric electrode based on a polydimethylsiloxane(PDMS)/silver paste/PDMS@fiber skeleton@flexible silver paste three⁃layer structure was proposed.The resistance changes under different external stimuli such as bending and twisting were analyzed,and the stability of the electrodes was evaluated through adhesion and ultrasonic experiments.The results indicated that such a three⁃layered flexible surface EMG electrode had a high conductivity of below 0.5Ω/sq,excellent resistance stability with a resistance change rate lower 3%after 1000 bending,good mechanical strength with an electrode⁃substrate adhesion higher than 1000 N/m,and good skin consistency.When used for an electrical muscle sensor,the developed electrode could effectively recognize various movement intensities with a signal⁃to⁃noise ratio,which was 36%and 49%higher than those of the conventional Ag/AgCl gel electrode and copper electrode,respectively.

关 键 词：纤维骨架 表面肌肉电电极 三层结构 

分 类 号：TQ320.79[化学工程—合成树脂塑料工业]