Electroactive Polymers (EAP): Volume 600Q. M. Zhang, Takeo Furukawa, Yoseph Bar-Cohen, J. Scheinbeim For many years, electroactive ceramic, magnetostrictive material and shape memory alloys have been the primary source of actuation materials for manipulation and mobility systems. Electroactive polymers (EAPs) received relatively little attention due to their limited capability. However, effective EAP materials have emerged, changing the paradigm of these materials' capability and potential. Their main attractive characteristic is the operation similarity to biological muscles, where under electrical excitation a large displacement is induced. The potential to operate biologically inspired mechanisms using EAPs as artificial muscles and organs offers exciting applications. This book promotes technical exchange of EAP research and development, as well as provides a forum for progress reports. Generally, two groups of materials are covered-dry EAPs and wet EAPs. While overall the dry types require high voltage for their operation, they also provide larger mechanical energy density and can hold a displacement under a DC voltage. Topics include: applications; ferroelectric polymers; piezoelectric, electrostrictive, and dielectric elastomers; conductive polymers; polymer gels and muscles and composites and others. |
Contents
Compliant Actuators Based on Electroactive Polymers | 3 |
Challenges to the Transition to the Practical Application | 13 |
Structure Properties and Applications of Single Crystalline | 23 |
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acid actin active actuators applications behavior calculated charge chemical compared composite conductivity consists containing copolymer crystal crystalline curve decreases density dependence deposited device dielectric constant dipoles direction domain effect elastomer electric field electrode electrolyte electrostrictive energy exhibit ferroelectric Figure frequency function heating higher increase indicates induced initial irradiated layer length limited lower materials measured mechanical membrane method modulus molecular molecules monomer motion muscle observed obtained orientation oxidation P(VDF-TrFE peak performance phase Phys piezoelectric polarization poling polymer polymerization pores potential powder prepared presented pressure Proc properties range region relative reported Research resistance respectively response room temperature samples shown shows similar solution solvent spectra strain strain response stress stretched structure studied surface switching temperature thermal thickness thin transition unit various voltage volume weight X-ray