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Proceedings Paper

Fabrication of dielectric elastomer stack transducers (DEST) by liquid deposition modeling
Author(s): Florian Klug; Susana Solano-Arana; Holger Mößinger; Florentine Förster-Zügel; Helmut F. Schlaak
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Paper Abstract

Established fabrication methods for dielectric elastomer stack transducers (DEST) are mostly based on twodimensional thin-film technology. Because of this, DEST are based on simple two-dimensionally structured shapes. For certain applications, like valves or Braille displays, these structures are suited well enough. However, a more flexible fabrication method allows for more complex actuator designs, which would otherwise require extra processing steps. Fabrication methods with the possibility of three-dimensional structuring allow e.g. the integration of electrical connections, cavities, channels, sensor and other structural elements during the fabrication. This opens up new applications, as well as the opportunity for faster prototype production of individually designed DEST for a given application. In this work, a manufacturing system allowing three dimensional structuring is described. It enables the production of multilayer and three-dimensional structured DEST by liquid deposition modelling. The system is based on a custom made dual extruder, connected to a commercial threeaxis positioning system. It allows a computer controlled liquid deposition of two materials. After tuning the manufacturing parameters the production of thin layers with at thickness of less than 50 μm, as well as stacking electrode and dielectric materials is feasible. With this setup a first DEST with dielectric layer thickness less than 50 μm is build successfully and its performance is evaluated.

Paper Details

Date Published: 17 April 2017
PDF: 7 pages
Proc. SPIE 10163, Electroactive Polymer Actuators and Devices (EAPAD) 2017, 101632Q (17 April 2017); doi: 10.1117/12.2256713
Show Author Affiliations
Florian Klug, Technische Univ. Darmstadt (Germany)
Susana Solano-Arana, Technische Univ. Darmstadt (Germany)
Holger Mößinger, Technische Univ. Darmstadt (Germany)
Florentine Förster-Zügel, Technische Univ. Darmstadt (Germany)
Helmut F. Schlaak, Technische Univ. Darmstadt (Germany)

Published in SPIE Proceedings Vol. 10163:
Electroactive Polymer Actuators and Devices (EAPAD) 2017
Yoseph Bar-Cohen, Editor(s)

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