Advanced Materials

Artificial Muscles Based on Polypyrrole/Carbon Nanotube Laminates

Authors

  • Wen Zheng,

    1. Intelligent Polymer Research Institute, ARC Centre of Excellence for Electromaterials Science, AIIM Facility, Innovation Campus, University of Wollongong, Wollongong, NSW 2522, Australia
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  • Joselito M. Razal,

    1. Intelligent Polymer Research Institute, ARC Centre of Excellence for Electromaterials Science, AIIM Facility, Innovation Campus, University of Wollongong, Wollongong, NSW 2522, Australia
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  • Philip G. Whitten,

    1. Intelligent Polymer Research Institute, ARC Centre of Excellence for Electromaterials Science, AIIM Facility, Innovation Campus, University of Wollongong, Wollongong, NSW 2522, Australia
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  • Raquel Ovalle-Robles,

    1. A. G. MacDiarmid, NanoTech Institute, University of Texas at Dallas, Richardson, Texas 75080, USA
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  • Gordon G. Wallace,

    1. Intelligent Polymer Research Institute, ARC Centre of Excellence for Electromaterials Science, AIIM Facility, Innovation Campus, University of Wollongong, Wollongong, NSW 2522, Australia
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  • Ray H. Baughman,

    Corresponding author
    1. A. G. MacDiarmid, NanoTech Institute, University of Texas at Dallas, Richardson, Texas 75080, USA
    • A. G. MacDiarmid, NanoTech Institute, University of Texas at Dallas, Richardson, Texas 75080, USA.
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  • Geoffrey M. Spinks

    Corresponding author
    1. Intelligent Polymer Research Institute, ARC Centre of Excellence for Electromaterials Science, AIIM Facility, Innovation Campus, University of Wollongong, Wollongong, NSW 2522, Australia
    • Intelligent Polymer Research Institute, ARC Centre of Excellence for Electromaterials Science, AIIM Facility, Innovation Campus, University of Wollongong, Wollongong, NSW 2522, Australia
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Abstract

A novel method for the periodical assembly of laminates of forest-drawn carbon nanotube (CNT) sheets and polypyrrole (PPy) is described. The method produces composite films in which the volume fraction and orientation of CNTs can be controlled. Actuator stroke and strength is increased and work capacity per cycle doubled when nanotube orientation is perpendicular to the actuation direction. Most importantly, these PPy/CNT laminates have dramatically decreased creep during actuation, which has been a major barrier for the application of PPy actuators.

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