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Proceedings Paper

Mass and charge transport in IPMC actuators with fractal interfaces
Author(s): Longfei Chang; Yucheng Wu; Zicai Zhu; Heng Li
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Paper Abstract

Ionic Polymer-Metal Composite (IPMC) actuators have been attracting a growing interest in extensive applications, which consequently raises the demands on the accuracy of its theoretical modeling. For the last few years, rough landscape of the interface between the electrode and the ionic membrane of IPMC has been well-documented as one of the key elements to ensure a satisfied performance. However, in most of the available work, the interface morphology of IPMC was simplified with structural idealization, which lead to perplexity in the physical interpretation on its interface mechanism. In this paper, the quasi-random rough interface of IPMC was described with fractal dimension and scaling parameters. And the electro-chemical field was modeled by Poisson equation and a properly simplified Nernst–Planck equation set. Then, by simulation with Finite Element Method, a comprehensive analysis on he inner mass and charge transportation in IPMC actuators with different fractal interfaces was provided, which may be further adopted to instruct the performance-oriented interface design for ionic electro-active actuators. The results also verified that rough interface can impact the electrical and mechanical response of IPMC, not only from the respect of the real surface increase, but also from mass distribution difference caused by the complexity of the micro profile.

Paper Details

Date Published: 15 April 2016
PDF: 9 pages
Proc. SPIE 9798, Electroactive Polymer Actuators and Devices (EAPAD) 2016, 979833 (15 April 2016); doi: 10.1117/12.2219296
Show Author Affiliations
Longfei Chang, Hefei Univ. of Technology (China)
Yucheng Wu, Hefei Univ. of Technology (China)
Zicai Zhu, Univ. of Tartu (Estonia)
Heng Li, Hefei Univ. of Technology (China)

Published in SPIE Proceedings Vol. 9798:
Electroactive Polymer Actuators and Devices (EAPAD) 2016
Yoseph Bar-Cohen; Frédéric Vidal, Editor(s)

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