Improved actuation strain of PDMS-based DEA materials chemically modified with softening agents

Miriam Biedermann; Martin Blümke; Michael Wegener; Hartmut Krüger

doi:10.1117/12.2085484

1 April 2015 Improved actuation strain of PDMS-based DEA materials chemically modified with softening agents

Miriam Biedermann, Martin Blümke, Michael Wegener, Hartmut Krüger

Proceedings Volume 9430, Electroactive Polymer Actuators and Devices (EAPAD) 2015; 94301G (2015) https://doi.org/10.1117/12.2085484
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 gained much in interest particularly in recent years. One active field of research is the improvement of their properties by modification of their structural framework. The object of this work is to improve the actuation properties of polydimethylsiloxane (PDMS)-based DEAs by covalent incorporation of mono-vinyl-terminated low-molecular PDMS chains into the PDMS network. These low-molecular units act as a kind of softener within the PDMS network. The loose chain ends interfere with the network formation and lower the network’s density. PDMS films with up to 50wt% of low-molecular PDMS additives were manufactured and the chemical, mechanical, electrical, and electromechanical properties of these novel materials were investigated.

Citation Download Citation

Miriam Biedermann, Martin Blümke, Michael Wegener, and Hartmut Krüger "Improved actuation strain of PDMS-based DEA materials chemically modified with softening agents", Proc. SPIE 9430, Electroactive Polymer Actuators and Devices (EAPAD) 2015, 94301G (1 April 2015); https://doi.org/10.1117/12.2085484

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