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Strain Transduction in Conductor-Modified Polymers

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Abstract

We present the fabrication and electromechanical characterization of a class of polymeric high-elongation strain sensors. Samples of polydimethylsiloxane were coated with Creative Materials, Inc.’s 123-27 Electrically Conductive Silicone Ink and the resistance behavior was evaluated in uniaxial tensile tests. Large strains (up to 100%) were observed with monotonically increasing resistance changes. A clear, linear trend up to 65% strain dominated the resistance vs. strain behavior then resistance increased non-linearly. Image processing of the film coupled with a finite element conduction simulation indicate the change in resistance is primarily a geometric effect. Both the conduction path and the polydimethylsiloxane substrate break completely around 100% strain. The samples exhibit a gauge factor of approximately 10.

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Authors and Affiliations

  1. Department of Mechanical Engineering, Stanford University, CA, USA

    Eerik T. Hantsoo, Vanessa B. Chial, Yanan Zhao, Kevin C. Chan, Klint A. Rose, Kenneth S. Wu & Beth L. Pruitt

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  1. Eerik T. Hantsoo
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  2. Vanessa B. Chial
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  3. Yanan Zhao
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  4. Kevin C. Chan
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  5. Klint A. Rose
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  6. Kenneth S. Wu
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  7. Beth L. Pruitt
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Hantsoo, E.T., Chial, V.B., Zhao, Y. et al. Strain Transduction in Conductor-Modified Polymers. MRS Online Proceedings Library 872, 36 (2005). https://doi.org/10.1557/PROC-872-J3.6

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  • DOI: https://doi.org/10.1557/PROC-872-J3.6

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