Conductive Filler Morphology Effect on Performance of Ionic Polymer Conductive Network Composite Actuators
Name
Liu-2010-Conductive filler.pdf
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5.15 MB
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Adobe PDF
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Author(s)
Liu, Sheng
Liu, Yang
Cebeci, Hulya Geyik
Guzman de Villoria, Roberto
Lin, Jun-Hong
Wardle, Brian L.
Date Issued
April 2010
Journal
Proceedings of SPIE--the International Society for Optical Engineering; v. 7642
Publisher
SPIE
Citation
Liu, Sheng et al. “Conductive filler morphology effect on performance of ionic polymer conductive network composite actuators.” Electroactive Polymer Actuators and Devices (EAPAD) 2010. Ed. Yoseph Bar-Cohen. San Diego, CA, USA: SPIE, 2010. 764219-10. Web.
Version
Final published version
Abstract
Several generations of ionic polymer metal composite (IPMC) actuators have been developed since 1992. It has been discovered that the composite electrodes which are composed of electronic and ionic conductors, have great impact on performance of ionic polymer actuators by affecting strain level, efficiency and speed. One of important factors in composite electrodes is the shape and morphology of electronic conductor fillers. In this paper, RuO2 nanoparticles and vertically aligned carbon nanotube (Va-CNT) are used as conductor fillers. Making use of unique properties of Va-CNT forests with ultrahigh volume fraction in Nafion nanocomposite, an ionic polymer actuator is developed. Ion transport speed is greatly increased along CNT alignment direction. The high elastic anisotropy, arising from the high modulus and volume fraction of Va-CNTs, enhances actuation strain while reducing the undesirable direction strain. More than 8% actuation strain under 4 volts with less than one second response time has been achieved.
Subjects
aligned carbon nanotubes
ionic polymer actuators
strain and speed
nanocomposite
MIT Department
Massachusetts Institute of Technology. Department of Aeronautics and Astronautics
Terms of Use
Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
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DOI of Published Version
https://doi.org/10.1117/12.847619
