期刊
EUROPHYSICS LETTERS
卷 64, 期 5, 页码 654-660出版社
EDP SCIENCES S A
DOI: 10.1209/epl/i2003-00277-9
关键词
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We demonstrate, for the first time, the large electromechanical response in nematic liquid-crystalline elastomers filled with a very low (similar to 0.01%) concentration of carbon nanotubes, aligned along the nematic director at preparation. The nanotubes create a very large effective dielectric anisotropy of the composite. Their local field-induced torque is transmitted to the rubber elastic network and is registered as the exerted uniaxial stress of order similar to 1 kPa in response to a constant field of order similar to 1 MV/m. We investigate the dependence of the effect on field strength, nanotube concentration and reproducibility under multiple field-on and -off cycles. The results indicate the potential of the nanotube-nematic elastomer composites as electrically driven actuators.
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