Strain Transduction in Conductor-Modified Polymers

Autor: Klint A. Rose, Yanan Zhao, Kevin C. Chan, Eerik T. Hantsoo, Vanessa B. Chial, Kenneth S. Wu, Beth L. Pruitt
Rok vydání: 2005
Předmět:
Zdroj: MRS Proceedings. 872
ISSN: 1946-4274
0272-9172
DOI: 10.1557/proc-872-j3.6
Popis: 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.
Databáze: OpenAIRE