8 March 2014 Conducting IPN actuator/sensor for biomimetic vibrissa system
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Abstract
Electroactive polymers, or EAPs, are polymers that exhibit a change in size or shape when stimulated by an electric field. The most common applications of this type of material are in actuators and sensors. One promising technology is the elaboration of electronic conducting polymers based actuators with Interpenetrating Polymer Networks (IPNs) architecture. Their many advantageous properties as low working voltage, light weight and high lifetime make them very attractive for various applications including robotics. Conducting IPNs were fabricated by oxidative polymerization of 3,4-ethylenedioxythiophene within a flexible Solid Polymer Electrolytes (SPE) combining poly(ethylene oxide) and Nitrile Butadiene Rubber. SPE mechanical properties and ionic conductivities in the presence of 1-ethyl-3- methylimidazolium bis-(trifluoromethylsulfonyl)-imide (EMITFSI) have been characterized. The presence of the elastomer within the SPE greatly improves the actuator performances. The free strain as well as the blocking force was characterized as a function of the actuator length. The sensing properties of those conducting IPNs allow their integration into a biomimetic perception prototype: a system mimicking the tactile perception of rat vibrissae.
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N. Festin, N. Festin, C. Plesse, C. Plesse, P. Pirim, P. Pirim, C. Chevrot, C. Chevrot, F. Vidal, F. Vidal, } "Conducting IPN actuator/sensor for biomimetic vibrissa system", Proc. SPIE 9056, Electroactive Polymer Actuators and Devices (EAPAD) 2014, 90562A (8 March 2014); doi: 10.1117/12.2047644; https://doi.org/10.1117/12.2047644
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