Electroactive Polymer Material Based Soft Actuators

A special issue of Actuators (ISSN 2076-0825). This special issue belongs to the section "Actuator Materials".

Deadline for manuscript submissions: closed (31 August 2021) | Viewed by 3154

Special Issue Editors


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Department of Mechanical Engineering, Inha University, 100 Inha-ro, Michuhol-ku, Incheon 22212, Korea
Interests: lignin-derived resins; nanocellulose multifunctional composites; smart materials and devices, including electroactive polymers; power harvesting; soft actuators; biosensors; flexible electronics; smart optics
Special Issues, Collections and Topics in MDPI journals

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Guest Editor
Department of Mechanical Engineering, Inha University, 100 Inha-ro, Michuhol-ku, Incheon 22212, Republic of Korea
Interests: smart materials and devices; nanocellulose; elecro active materials; nanocarbon; microfabrication; high strength nanocomposites; energy harvestor; sensor and actuators; optical applications
Special Issues, Collections and Topics in MDPI journals

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Guest Editor
Human Enhancement & Assistive Technology Research Section, Electronics and Telecommunications Research Institute (ETRI), 218 Gajeong-ro, Yuseong-gu, Daejeon 34129, Republic of Korea
Interests: electroactive polymers; active nanocomposite; stretchable electronics; biocompatible polymers; wearable electronic systems; haptic interfaces; soft robotics; smart optics
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Soft actuators change their shape or size in response to stimuli such as electricity, heat, light, chemical, or pH. These actuator materials are compliant and well suited for soft mechatronics and robots. Several solid-state actuator materials include shape memory alloy, piezoelectric, magnetostrictive, electrostrictive, and electroactive polymer (EAP). In the last three decades, the field of EAP has received much attention as a result of the development of new EAP materials that exhibit a large deformation. EAP-based soft actuators can offer a range of performance and soft characteristics that other technologies may not reproduce. Owing to light-weight, flexible, and high energy efficiency, soft actuators allow the researchers the opportunity to design compact, light-weight, and compliant actuators to be used in autonomous soft robots. The field of soft actuators faces many fundamental scientific challenges and the optimal exploitation of their properties in applications needs to be better understood. Therefore, this Special Issue targets high-quality publications spanning the following topics:

  • Modeling and design of novel EAP-based soft actuators;
  • Discovery of EAP materials: IPMC, gels, conducting polymers, carbon-based EAPs, dielectric elastomers, bio-based EAPs, hybrid EAPs, etc.;
  • Force, motion, and stiffness control;
  • Energy efficiency, actuator performance;
  • Applications with a strong focus on the role of soft actuator.

Prof. Dr. Jaehwan Kim
Dr. Hyun Chan Kim
Dr. Sungryul Yun
Guest Editors

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Keywords

  • soft actuators
  • electroactive polymers
  • conducting polymers
  • dielectric elastomers
  • bio-based EAPs
  • hybrid EAPs, gels
  • carbon nanotubes
  • graphene

Published Papers (1 paper)

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Research

19 pages, 8235 KiB  
Article
Axial Motion Characterization of a Helical Ionic Polymer Metal Composite Actuator and Its Application in 3-DOF Micro-Parallel Platforms
by Yuwei Wu, Min Yu, Qingsong He, David Vokoun, Guoxiao Yin, Xianrui Xu and Pengfei Lyu
Actuators 2021, 10(10), 248; https://doi.org/10.3390/act10100248 - 27 Sep 2021
Cited by 4 | Viewed by 2407
Abstract
In this work, a helical ionic polymer metal composite (IPMC) was fabricated by thermal treatment in a mold with helix grooves. The axial actuation behaviors of the helical IPMC actuator were observed, and the electromechanical and electrochemical characteristics were evaluated. The experimental results [...] Read more.
In this work, a helical ionic polymer metal composite (IPMC) was fabricated by thermal treatment in a mold with helix grooves. The axial actuation behaviors of the helical IPMC actuator were observed, and the electromechanical and electrochemical characteristics were evaluated. The experimental results showed that as the voltage increased and the frequency decreased, the axial displacement, axial force, and electric current of the actuator all increased. Compared with square wave and sinusoidal signals, the actuator exhibited the most satisfactory motion under the direct current (DC) signal. For the electrochemical test, as the scanning rate decreased, the gravimetric specific capacitance increased. Within a suitable voltage range, the actuator was chemically stable. In addition, we coupled the Electrostatics module, Transport of Diluted Species module, and Solid Mechanics module in COMSOL Multiphysics software to model and analyze the helical IPMC actuator. The simulation data obtained were in good agreement with the experimental data. Finally, by using three helical IPMC actuators as driving components, an innovative three-degree-of-freedom (3-DOF) micro-parallel platform was designed, and it could realize a complex coupling movement of pitch, roll, and yaw under the action of an electric field. This platform is expected to be used in micro-assembly, flexible robots, and other fields. Full article
(This article belongs to the Special Issue Electroactive Polymer Material Based Soft Actuators)
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