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Proceedings Paper

Thermoplastic polyurethane as a mechanochromic strain sensor
Author(s): Filippo Cellini; Sachin Khapli; Sean D. Peterson; Maurizio Porfiri
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Paper Abstract

Mechanochromism of polymer-dye blends can be used to formulate novel pressure sensors for fluid mechanics and hydrology, where the use of traditional electromechanical transducers may be limited by environmental factors. Here, we investigate optomechanical properties of a mechanochromic blend of thermoplastic polyurethane and 0.5 wt% bis(benzoxazolyl)stilbene fluorescent dye. We characterize the response of this soft active material in a stress relaxation test by simultaneous acquisition of the tensile load, the mechanical deformation, and the fluorescence emission.

Paper Details

Date Published: 1 April 2015
PDF: 6 pages
Proc. SPIE 9432, Behavior and Mechanics of Multifunctional Materials and Composites 2015, 943203 (1 April 2015); doi: 10.1117/12.2083650
Show Author Affiliations
Filippo Cellini, New York Univ. (United States)
Sachin Khapli, New York Univ. Abu Dhabi (United Arab Emirates)
Sean D. Peterson, New York Univ. (United States)
Univ. of Waterloo (Canada)
Maurizio Porfiri, New York Univ. (United States)


Published in SPIE Proceedings Vol. 9432:
Behavior and Mechanics of Multifunctional Materials and Composites 2015
Nakhiah C. Goulbourne, Editor(s)

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