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Proceedings Paper

Investigating a few key issues of ionomeric polymer conductive network composite electromechanical transducers
Author(s): Sheng Liu; Minren Lin; Yang Liu; Qiming Zhang; Reza Montazami; Vaibhav Jain; James R. Heflin
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Paper Abstract

Traditional ionic polymer/conductor network composite (IPCNC) electromechanical actuators exhibit low actuation speed and efficiency. In order to improve these parameters while still maintaining low voltage operation, we investigated IPCNC with a range of composite layer (active layer) and middle ionomer layer (passive layer) thicknesses. We show that it is the slow ion transport in the porous composite electrode layer that limits the actuation speed of IPCNCs. By reducing the thickness of the composite electrode layers, both the actuation speed and efficiency can be improved. Moreover, we show that the IPCNC actuator speed and efficiency are intimately related to the morphology of the composite electrode layer and the conductor network composites fabricated by ionic self-assembled layer-by-layer (LBL) exhibit higher strain response compared with that from the traditional IPCNC. For example, LBL composites show very high intrinsic strain of about 7%. Detailed device analysis points out directions of further improvement of these actuators.

Paper Details

Date Published: 6 April 2009
PDF: 10 pages
Proc. SPIE 7287, Electroactive Polymer Actuators and Devices (EAPAD) 2009, 72870T (6 April 2009); doi: 10.1117/12.815855
Show Author Affiliations
Sheng Liu, The Pennsylvania State Univ. (United States)
Minren Lin, The Pennsylvania State Univ. (United States)
Yang Liu, The Pennsylvania State Univ. (United States)
Qiming Zhang, The Pennsylvania State Univ. (United States)
Reza Montazami, Virginia Polytechnic Institute and State Univ. (United States)
Vaibhav Jain, Virginia Polytechnic Institute and State Univ. (United States)
James R. Heflin, Virginia Polytechnic Institute and State Univ. (United States)


Published in SPIE Proceedings Vol. 7287:
Electroactive Polymer Actuators and Devices (EAPAD) 2009
Yoseph Bar-Cohen; Thomas Wallmersperger, Editor(s)

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