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Ionic electroactive polymer (iEAP) actuators have emerged as promising candidates for the advancement of artificial muscles, exhibiting great potential in applications within bionic robotics, space exploration, and the biomedical field. In this study, a novel iEAP actuator was developed utilizing high-purity single-walled carbon nanotube (SWCNT) electrodes and a Nafion/EMIBF4 ion-exchange membrane through a simple and effective spray printing technique. The SWCNT actuator demonstrates significantly enhanced electrical conductivity (1.63 S/cm), attributed to the high electrical conductivity of SWCNT. These enhancements surpass those observed in activated carbon aerogel bucky gel electrode-based actuators. Through the evaluation of the electroactive behaviors of the SWCNT actuator under varying alternating square wave voltages (1–3 V) and frequencies (0.01–100 Hz), impressive results were obtained, including a substantial bending displacement of 10.28 mm and long-term operational stability up to 12,000 cycles (at 2 V, 1 Hz). This research introduces a simple and effective spray printing technique for the successful fabrication of iEAP actuators with superior electromechanical properties, holding promise for use as artificial muscles in the realm of bionic robotics.

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Superior Performances of a Novel Soft Electroactive Actuator Based on High-Purity Single-Walled Carbon Nanotubes

  • 会议论文

  • 发表日期：

    2025年

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  • Guangyao Hu,
  • Weixing Feng,
  • Nan Zhang,
  • Longlong Wang,
  • Dewen Niu,
  • Jie Ru

摘要

Ionic electroactive polymer (iEAP) actuators have emerged as promising candidates for the advancement of artificial muscles, exhibiting great potential in applications within bionic robotics, space exploration, and the biomedical field. In this study, a novel iEAP actuator was developed utilizing high-purity single-walled carbon nanotube (SWCNT) electrodes and a Nafion/EMIBF4 ion-exchange membrane through a simple and effective spray printing technique. The SWCNT actuator demonstrates significantly enhanced electrical conductivity (1.63 S/cm), attributed to the high electrical conductivity of SWCNT. These enhancements surpass those observed in activated carbon aerogel bucky gel electrode-based actuators. Through the evaluation of the electroactive behaviors of the SWCNT actuator under varying alternating square wave voltages (1–3 V) and frequencies (0.01–100 Hz), impressive results were obtained, including a substantial bending displacement of 10.28 mm and long-term operational stability up to 12,000 cycles (at 2 V, 1 Hz). This research introduces a simple and effective spray printing technique for the successful fabrication of iEAP actuators with superior electromechanical properties, holding promise for use as artificial muscles in the realm of bionic robotics.