Issue 38, 2012
From the journal:

Journal of Materials Chemistry

Self-healing electrodes for dielectric elastomer actuators†

Silvain Michel,a   Bryan T. T. Chu,b   Sascha Grimm,b   Frank A. Nüesch,b   Andreas Borgschultec  and  Dorina M. Opris*b  

* Corresponding authors

a Empa, Swiss Federal Laboratories for Materials Science and Technology, Laboratory of Mechanical Systems Engineering, Ueberlandstr. 129, Dübendorf, Switzerland

b Empa, Swiss Federal Laboratories for Materials Science and Technology, Laboratory for Functional Polymers, Ueberlandstr. 129, Dübendorf, Switzerland
E-mail: dorina.opris@empa.ch
Fax: +41 58765 4012
Tel: +41 58 765 4304

c Empa, Swiss Federal Laboratories for Materials Science and Technology, Laboratory for Hydrogen and Energy, Ueberlandstr. 129, Dübendorf, Switzerland

Abstract

A conductive, printable and stretchable composite based on 20 wt% reduced graphite nanoplatelets in silicone to be used as the electrode in dielectric elastomer actuators was developed. It has a sheet resistance of 0.1 kΩ □−1 and a low modulus of elasticity. Additionally, it is able to self-heal the actuator after a breakdown and thus increases significantly its lifetime and reliability. Such an actuator can be operated repeatedly and reversibly at voltages below and above the voltage of the first breakdown. The actuator can suffer many breakdowns and is able to self-heal again and again without loss of performance.

Graphical abstract: Self-healing electrodes for dielectric elastomer actuators

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Article information

DOI
https://doi.org/10.1039/C2JM32228E
Article type
Paper
Submitted
10 Apr 2012
Accepted
17 Aug 2012
First published
17 Aug 2012

J. Mater. Chem., 2012,22, 20736-20741

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Self-healing electrodes for dielectric elastomer actuators

S. Michel, B. T. T. Chu, S. Grimm, F. A. Nüesch, A. Borgschulte and D. M. Opris, J. Mater. Chem., 2012, 22, 20736 DOI: 10.1039/C2JM32228E

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