Direct ink writing of high-permittivity dielectric elastomer transducers

Patrick Marcel Danner; Dorina M. Opris

doi:10.1117/12.2658424

28 April 2023 Direct ink writing of high-permittivity dielectric elastomer transducers

Proceedings Volume PC12482, Electroactive Polymer Actuators and Devices (EAPAD) XXV; PC124820G (2023) https://doi.org/10.1117/12.2658424
Event: SPIE Smart Structures + Nondestructive Evaluation, 2023, Long Beach, California, United States

Abstract

3D printing of dielectric elastomer transducers (DET) would significantly accelerate their application in soft robotics. Direct ink writing (DIW) of DET is limited by multiple factors, such as the need for a multi-material printing of dielectric and compliant electrodes and the relatively large thickness, high stiffness, and poor mechanical properties of elastomers. Increasing the permittivity of elastomers is the only tunable material parameter, which can reduce the actuation voltage, or increase the sensor signal, as the minimum thickness is fixed by the printing resolution. We present DIW printable high-permittivity polysiloxanes. Besides the high-permittivity further material parameters and interdependencies between ink requirements and final material performance are explored. The facile printing of these high-permittivity dielectrics with standard 3D printers is demonstrated. Lastly, the performance of various DIW printed DETs are presented.

Conference Presentation

Citation Download Citation

Patrick Marcel Danner and Dorina M. Opris "Direct ink writing of high-permittivity dielectric elastomer transducers", Proc. SPIE PC12482, Electroactive Polymer Actuators and Devices (EAPAD) XXV, PC124820G (28 April 2023); https://doi.org/10.1117/12.2658424

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