Silicone films with high stiffness and increasing permittivity through dipole-grafting

Martin Bluemke; Michael Wegener; Hartmut Krueger

doi:10.1117/12.2085308

1 April 2015 Silicone films with high stiffness and increasing permittivity through dipole-grafting

Martin Bluemke, Michael Wegener, Hartmut Krueger

Proceedings Volume 9430, Electroactive Polymer Actuators and Devices (EAPAD) 2015; 94300L (2015) https://doi.org/10.1117/12.2085308
Event: SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, 2015, San Diego, California, United States

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.

Citation Download Citation

Martin Bluemke, Michael Wegener, and Hartmut Krueger "Silicone films with high stiffness and increasing permittivity through dipole-grafting", Proc. SPIE 9430, Electroactive Polymer Actuators and Devices (EAPAD) 2015, 94300L (1 April 2015); https://doi.org/10.1117/12.2085308

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