9 April 2013 Dielectric elastomers with novel highly-conducting electrodes
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Beside the characteristics of the elastomer material itself, the performance of dielectric elastomers in actuator, sensor as well as generator applications depends also on the properties of the electrode material. Various electrode materials based on metallic particles dispersed in a silicone matrix were manufactured and investigated. Anisotropic particles such as silver-coated copper flakes and silver-coated glass flakes were used for the preparation of the electrodes. The concentration of the metallic particles and the thickness of the electrode layers were varied. Specific conductivities derived from resistance measurements reached about 100 S/cm and surmount those of the reference materials based on graphite and carbon black by up to three orders of magnitude. The high conductivities of the new electrode materials can be maintained even at very large stretch deformations up to 200 %.
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Holger Böse, Holger Böse, Detlev Uhl, Detlev Uhl, "Dielectric elastomers with novel highly-conducting electrodes", Proc. SPIE 8687, Electroactive Polymer Actuators and Devices (EAPAD) 2013, 86872O (9 April 2013); doi: 10.1117/12.2012492; https://doi.org/10.1117/12.2012492

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