Space charge characteristics of fullerenol and carbon nanotube doped polyurethane elastomer (PUE) actuators
ISEIM 2005). Proceedings of 2005 International Symposium（2005）
摘要
PUE films have been found to exhibit an electrostriction effect. We propose the applying them to a moving device such as an actuator similar to artificial muscles using the electrostriction effect. The actuators are of monomorph type fabricated by PUE film and metal electrodes evaporated at different thickness on the film surfaces. Because these actuators work at a high voltage of more than 1 KV, we controlled the molecular structure of the films by doping C60 or CNT derivatives into PUE so that the actuators could operate under a low voltage. The bends of C60 and CNT-doped actuators were larger than those of non-doped actuators and the working voltage was also low. The force of the actuators increased in proportion to the electric field, and strongly depended on the thickness of the PUE films. Furthermore, in order to clarify the relationship between the stretch of PUE film and the bending mechanism of actuators, we measured the space charge of PUE films using the pulsed electroacoustic method.
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关键词
bending,carbon fibre reinforced plastics,carbon nanotubes,conducting polymers,doping,elastomers,electrodes,electrostriction,filled polymers,fullerene compounds,fullerenes,molecular configurations,piezoelectric actuators,polymer films,pulsed electroacoustic methods,space charge,vacuum deposition,c,c60,artificial muscles,bending mechanism,carbon nanotube doped polyurethane elastomer,electrostriction effect,evaporation,film surface,fullerenol,metal electrodes,molecular structure,monomorph type,polyurethane elastomer actuators,polyurethane elastomer films,pulsed electroacoustic method,vapor deposition,electric field,high voltage,carbon,plastics,low voltage,carbon nanotube,artificial muscle,actuators
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