Research Progress in Electroactive Polymers for Soft Robotics and Artificial Muscle Applications.

Area of Science:

• Robotics and Materials Science
• Focus on soft robotics and advanced actuator technologies.

Background:

• Soft robots utilize deformable materials, offering advantages over rigid designs through bio-mimicry and enhanced adaptability.
• Electroactive Polymer (EAP) actuators are key components enabling large deformations in response to stimuli, crucial for soft robotic functionality.

Purpose of the Study:

• To review various EAP actuators, including dielectric elastomers, liquid crystal elastomers (LCEs), and ionic polymers.
• To examine the potential of these EAPs as artificial muscles in soft robotic systems.
• To discuss the integration of emerging technologies like ML and IoT in soft robotics.

Main Methods:

• Review of literature on various EAP actuator types: dielectric elastomers, LCEs, ionic polymers, piezoelectric polymers (PVDF), conducting polymers, and magnetic polymer composites (MPCs).
• Analysis of EAP properties such as actuation strain, flexibility, energy efficiency, and biocompatibility.
• Exploration of the role of machine learning (ML) and the Internet of Things (IoT) in soft robotics.

Main Results:

• EAPs offer high actuation strain, flexibility, lightweight design, and energy efficiency, suitable for mechatronics, robotics, and biomedical engineering.
• Piezoelectric polymers like PVDF are highlighted for sensing applications due to flexibility and biocompatibility.
• Conducting polymers and MPCs show promise for fast actuation and diverse applications.

Conclusions:

• EAP actuators are vital for developing advanced soft robots with artificial muscle capabilities.
• The integration of ML and IoT is crucial for creating intelligent, adaptive, and responsive soft robotic systems.
• Future directions include self-healing composites, bio-inspired designs, and sustainable materials for next-generation soft robotics.