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Proceedings Paper

Silicone films with high stiffness and increasing permittivity through dipole-grafting
Author(s): Martin Bluemke; Michael Wegener; Hartmut Krueger
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Paper Abstract

Dielectric elastomer actuators (DEAs) are smart materials that can be optimized by modifying the dielectric or mechanical properties of the electroactive polymer. The incorporation of inorganic particles in silicone elastomers shows a permittivity enhancement and undesired stiffening. We present another concept to obtain comparable properties by dipole grafting. Therefore, the organic dipole N-ally-N-methyl-4-nitroaniline is grafted in competition with the vinyl terminated PDMS to a hydrosilane cross-linker forming the PDMS network. With this procedure PDMS films with up to 25 wt% of the dipole were solvent casted and the chemical, mechanical, electrical, plus electromechanical properties of these novel materials were investigated.

Paper Details

Date Published: 1 April 2015
PDF: 7 pages
Proc. SPIE 9430, Electroactive Polymer Actuators and Devices (EAPAD) 2015, 94300L (1 April 2015); doi: 10.1117/12.2085308
Show Author Affiliations
Martin Bluemke, Fraunhofer Institute for Applied Polymer Research (Germany)
Michael Wegener, Fraunhofer Institute for Applied Polymer Research (Germany)
Hartmut Krueger, Fraunhofer Institute for Applied Polymer Research (Germany)

Published in SPIE Proceedings Vol. 9430:
Electroactive Polymer Actuators and Devices (EAPAD) 2015
Yoseph Bar-Cohen, Editor(s)

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