Polymer-based carbon-nanotube film with reversible signal tracking capabilities
Resource
MATERIALS LETTERS, 65(23-24), 3533-3536
Journal
Materials Letters
Pages
3533-3536
Date Issued
2011
Date
2011
Author(s)
Abstract
This study presents a polymer-based carbon-nanotube (CNT) sensing polymer with reversible signal tracking capabilities. The sensing polymer was prepared by dispersing multi-walled CNTs (MWCNTs) and silver nanoparticles into the polydimethylsiloxane (PDMS) polymer matrix. Before curing the PDMS prepolymer, MWCNTs were aligned in the prepolymer, using the dielectrophoresis (DEP) technique. Under an external force, the polymer increased and retained resistivity, which could be recovered to its original value by repeating DEP. Similar resistivity behaviors induced by temperature elevation and DEP were also observed. This study also presents the measured performance and repeatability. The potential applications of the sensing polymer include reusable inertia switches, footstep tracking carpets, and temperature switches. © 2011 Elsevier B.V. All rights reserved.
Type
journal article
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