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Rejuvenation of soft material–actuator

Published online by Cambridge University Press:  14 March 2018

Aslan Miriyev*
Affiliation:
Department of Mechanical Engineering, Columbia University in the City of New York, 500 W 120th St., Mudd 220, New York, NY 10027, USA
Cesar Trujillo
Affiliation:
Department of Mechanical Engineering, Columbia University in the City of New York, 500 W 120th St., Mudd 220, New York, NY 10027, USA
Gabriela Caires
Affiliation:
Department of Mechanical Engineering, Columbia University in the City of New York, 500 W 120th St., Mudd 220, New York, NY 10027, USA
Hod Lipson
Affiliation:
Department of Mechanical Engineering, Columbia University in the City of New York, 500 W 120th St., Mudd 220, New York, NY 10027, USA
*
Address all correspondence to Aslan Miriyev at aslan.miriyev@columbia.edu
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Abstract

Akin to the natural tissues, soft artificial muscles possess a life cycle limited by aging and degradation phenomena. Here, we propose a rejuvenation method aimed at silicone-ethanol soft composite actuators, in which ethanol escape occurs during prolonged actuation, thus compromising their performance. The rejuvenation is achieved by immersion of the material–actuator in ethanol, allowing its diffusion into the silicone-based material until saturation. Repeatable rejuvenation of a soft robot, based on the soft material–actuator, resulted in retention of up to 100% of its functionality. Thus, we suggest that this method may be used for the rejuvenation of soft artificial muscles and material–actuators.

Type
Research Letters
Copyright
Copyright © Materials Research Society 2018 

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