WU Xiaojun, WEN Binhua, TONG Xin, ZHANG Ying
（School of Mechanical and Electrical Engineering, Xi’an University of Architecture and Technology, Xi’an 710055, China）
Abstract： A manufacturing method is proposed for carbon based composite double polymer compliant electrode. The stiffness of this compliant electrode is changed by adjusting the mass fraction of carbon black and the ratios between Ecoflex20 and RT625. Tensile machine is used to test its ductility and hardness. The conductivity is measured through the source table. Finally, it is printed on the dielectric elastomers (DE) film, and the high-voltage amplifier is used for dielectric elastomers actuators (DEAs) dynamics testing. The results show that the compliant electrode has high tensile properties (>200%), low stiffness (<300 kPa) and well conductivity (0.049 3 S/cm). It is proved that the DEAs displacement output is up to 1.189 mm by this compliant electrode under dynamic response, which is 1.64 times and 1.32 times of the same type. Moreover, this formula extends the curing time of the original compliant electrode ink. It can provide a reference for the production of compliant electrode and DEAs in the future.
Key words： dielectric elastomer actuators (DEA); carbon-based composite double polymer compliant electrode; stiffness；conductivity
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碳基复合双聚合物柔性电极的制备及刚度性能优化
吴晓君， 文斌华， 童鑫， 张迎
（西安建筑科技大学 机电工程学院， 陕西 西安 710055）
摘要:本文提出一种碳基复合双聚合物柔性电极的制造方法， 通过调节碳黑的质量分数以及Ecoflex20和RT625之间的不同比例， 改变柔性电极的刚度， 利用拉伸机对其延展性以及软硬度进行测试， 通过源表进行导电率的测量， 最后将其移印在介电弹性体（DE）薄膜上， 并利用高压放大器进行介电弹性体驱动器（DEA）加电动力学测试。 研究表明， 基于此方法制造的柔性电极具有高拉伸性（>200%）、低刚度（<300 kPa）以及高导电率（0.049 3 S/cm）。 实验结果表明， 基于此柔性电极移印法制作的DEAs在动态响应下的位移输出高达1.189 mm， 是同类型的1.64倍和1.32倍。 同时， 此配方能够延长原有柔性电极油墨的固化时间， 可为柔性电极和DEAs的制作提供一种参考。
关键词:介电弹性体驱动器（DEA）；碳基复合双聚合物柔性电极；刚度； 导电率
引用格式：WU Xiaojun, WEN Binhua, TONG Xin, et al. Fabrication and stiffness optimization of carbon-based composite double polymer compliant electrode. Journal of Measurement Science and Instrumentation， 2022， 13（4）： 471-479. DOI： 10.3969／j.issn.1674-8042.2022.04.010
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