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Effect of pre-strain and KMnO4 oxidation of carbon nanotubes embedded in polyurethane on strain dependent electrical resistance of the composite

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dc.title Effect of pre-strain and KMnO4 oxidation of carbon nanotubes embedded in polyurethane on strain dependent electrical resistance of the composite en
dc.contributor.author Slobodian, Petr
dc.contributor.author Říha, Pavel
dc.contributor.author Olejník, Robert
dc.contributor.author Matyáš, Jiří
dc.relation.ispartof Sensor Review
dc.identifier.issn 0260-2288 Scopus Sources, Sherpa/RoMEO, JCR
dc.date.issued 2018
utb.relation.volume 38
utb.relation.issue 2
dc.citation.spage 163
dc.citation.epage 170
dc.type article
dc.language.iso en
dc.publisher Emerald
dc.identifier.doi 10.1108/SR-05-2017-0079
dc.relation.uri https://www.emeraldinsight.com/doi/abs/10.1108/SR-05-2017-0079
dc.subject Nanotechnology en
dc.subject Sensors en
dc.subject Polymer sensors en
dc.subject Carbon nanotubes en
dc.subject Polyurethane composite en
dc.subject Transverse cracking en
dc.description.abstract Purpose - The synergistic effect of functionalization of multi-walled carbon nanotubes (CNT) using KMnO4 oxidation and initial tensile deformation on the electrical resistance of nanotube network/polyurethane composite subjected to elongation was studied. Design/methodology/approach - Though the initial deformation irreversibly changed the arrangement of carbon nanotube network, subsequent cyclic elongation confirmed stable resistance values. The increased strain-dependent resistance of stimulated nanotube network/polyurethane composite was demonstrated by monitoring vibration of tambour leather after a bead impact and finger flexion. Findings - The results showed a tenfold composite resistance increase for the composite prepared from KMnO4 oxidized nanotubes, quantified by a so-called gauge factor, from a value of about 20 in comparison to the network prepared from pristine nanotubes. This is a substantial increase, which ranks the stimulated composite among materials with the highest electromechanical response. Originality/value - The results in this paper are new and have not been published yet. The paper combines different ideas which are developed together. It presents a new concept of synergistic effect of CNT oxidation and application of pre-strain simulation. Oxidation and pre-strain increases by several times the sensitivity of the tested composites which are predetermined for use as strain sensors of various sizes and shapes. © 2018 Emerald Publishing Limited. en
utb.faculty University Institute
dc.identifier.uri http://hdl.handle.net/10563/1007805
utb.identifier.obdid 43878273
utb.identifier.scopus 2-s2.0-85037353010
utb.identifier.wok 000426784200005
utb.identifier.coden SNRVD
utb.source j-scopus
dc.date.accessioned 2018-04-23T15:01:45Z
dc.date.available 2018-04-23T15:01:45Z
dc.description.sponsorship LO1504, NPU, Northwestern Polytechnical University; CZ.1.05/2.1.00/19.0409, CPS, Center for Produce Safety; MEYS, Ministry of Education, Youth and Science; IPM, Institute for Research in Fundamental Sciences
dc.description.sponsorship Ministry of Education, Youth and Sports of the Czech Republic - Program NPU I [LO1504]; national budget of the Czech Republic, within the project CPS - strengthening research capacity [CZ.1.05/2.1.00/19.0409]; 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.fulltext.affiliation Petr Slobodian, Pavel Riha, Robert Olejnik, Jiri Matyas Centre of Polymer Systems, Univerzita Tomase Bati ve Zline, Zlin, Czech Republic Institute of Hydrodynamics, The Czech Academy of Sciences, Prague, Czech Republic Centre of Polymer Systems, Univerzita Tomase Bati ve Zline, Zlin, Czech Republic
utb.fulltext.dates Received 17 May 2017 Revised 20 July 2017 Accepted 26 July 2017
utb.scopus.affiliation Centre of Polymer Systems, Univerzita Tomase Bati ve Zline, Zlin, Czech Republic; Institute of Hydrodynamics, Czech Academy of Sciences, Prague, Czech Republic
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
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