Novel silicone elastomer formulations for DEAPs

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We demonstrate that the force output and work density of polydimethylsiloxane (PDMS) based dielectric elastomer transducers can be significantly enhanced by the addition of high permittivity titanium dioxide nanoparticles which was also shown by Stoyanov et al[1] for pre-stretched elastomers and by Carpi et al for RTV silicones[2]. Furthermore the elastomer matrix is optimized to give very high breakdown strengths. We obtain an increase in the dielectric permittivity of a factor of approximately 2 with a loading of 12% TiO2 particles compared to the pure modified silicone elastomer with breakdown strengths remaining more or less unaffected by the loading of TiO2 particles. Breakdown strengths were measured in the range from approximately 80-150 V/μm with averages of the order of 120-130 V/μm for the modified silicone elastomer with loadings ranging from 0 to 12%.
Original languageEnglish
Title of host publicationProceedings of SPIE
EditorsYoseph Bar-Cohen
Number of pages8
PublisherSPIE - International Society for Optical Engineering
Publication date2013
Article number86871I
Publication statusPublished - 2013
EventElectroactive Polymer Actuators and Devices 2013 - Town & Country Resort and Convention Center, San Diego, California, United States
Duration: 11 Mar 201314 Mar 2013


ConferenceElectroactive Polymer Actuators and Devices 2013
LocationTown & Country Resort and Convention Center
Country/TerritoryUnited States
CitySan Diego, California


  • Elastomer
  • Formulations
  • Electrical break down


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