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Pre-Strain Stimulation of Electro-Mechanical Sensitivity of Carbon Nanotube Network/Polyurethane Composites

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dc.title Pre-Strain Stimulation of Electro-Mechanical Sensitivity of Carbon Nanotube Network/Polyurethane Composites en
dc.contributor.author Slobodian, Petr
dc.contributor.author Říha, Pavel
dc.contributor.author Olejník, Robert
dc.contributor.author Matyáš, Jiří
dc.contributor.author Machovský, Michal
dc.relation.ispartof IEEE Sensors Journal
dc.identifier.issn 1530-437X Scopus Sources, Sherpa/RoMEO, JCR
dc.date.issued 2016
utb.relation.volume 16
utb.relation.issue 15
dc.citation.spage 5898
dc.citation.epage 5903
dc.type article
dc.language.iso en
dc.publisher Institute of Electrical and Electronics Engineers (IEEE)
dc.identifier.doi 10.1109/JSEN.2016.2573398
dc.relation.uri http://ieeexplore.ieee.org/document/7479479/?arnumber=7479479
dc.subject carbon nanotubes en
dc.subject CNT en
dc.subject deformation sensing en
dc.subject Electromechanical sensors en
dc.subject polymer nanocomposites polyurethanes TPU en
dc.subject strain sensors en
dc.description.abstract The change of electrical resistance of a highly extensible composite sensors consisting of a network of entangled multi-wall carbon nanotubes (CNTs) and thermoplastic polyurethane elastomer in the course of elongation was stimulated by initial tensile deformation. Though the initial deformation irreversibly changes the arrangement of CNT network, subsequent cyclic elongation and corresponding resistance change is stable. The resistance sensitivity, quantified by a gauge factor, which defines the sensitivity of strain sensor as the relative resistance change divided by the applied strain, increases nearly five times from the value of about five for not initially elongated composites. This is a substantial increase, which ranks the composites among materials with the highest electromechanical sensitivity. The observed sensitivity increase is discussed on basis of the cracking of a nanotube network with extension when the number of contacts between nanotubes decreases and thus the network has fewer interconnections that can carry an electric current. © 2001-2012 IEEE. en
utb.faculty University Institute
dc.identifier.uri http://hdl.handle.net/10563/1006572
utb.identifier.obdid 43875213
utb.identifier.scopus 2-s2.0-84978386264
utb.identifier.wok 000380126000008
utb.source j-scopus
dc.date.accessioned 2016-09-21T13:12:20Z
dc.date.available 2016-09-21T13:12:20Z
dc.description.sponsorship Ministry of Education Youth and Sports, Czech Republic, through the NPU I Program [LO1504]; Fund of Institute of Hydrodynamics [AV0Z20600510]
utb.ou Centre of Polymer Systems
utb.contributor.internalauthor Slobodian, Petr
utb.contributor.internalauthor Olejník, Robert
utb.contributor.internalauthor Matyáš, Jiří
utb.contributor.internalauthor Machovský, Michal
utb.fulltext.affiliation Petr Slobodian, Pavel Riha, Robert Olejnik, Jiri Matyas, Michal Machovsky P. Slobodian, R. Olejnik, J. Matyas, and M. Machovsky are with the Centre of Polymer Systems, University Institute, Tomas Bata University, Zlín 760 01, Czech Republic (e-mail: slobodian@cps.utb.cz; rolejnik@cps.utb.cz; matyas@cps.utb.cz; machovsky@cps.utb.cz). P. Riha is with the Institute of Hydrodynamics, Academy of Sciences of the Czech Republic, Prague 166 12, Czech Republic (e-mail: riha@ih.cas.cz). (Corresponding author: Petr Slobodian.)
utb.fulltext.dates received August 21, 2015 revised March 22, 2016 accepted May 23, 2016 Date of publication May 26, 2016 date of current version July 6, 2016
utb.fulltext.faculty University Institute
utb.fulltext.faculty University Institute
utb.fulltext.faculty University Institute
utb.fulltext.faculty University Institute
utb.fulltext.ou Centre of Polymer Systems
utb.fulltext.ou Centre of Polymer Systems
utb.fulltext.ou Centre of Polymer Systems
utb.fulltext.ou Centre of Polymer Systems
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