Effect of pre-strain and KMnO4 oxidation of carbon nanotubes embedded in polyurethane on strain dependent electrical resistance of the composite
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F70883521%3A28110%2F18%3A63519036" target="_blank" >RIV/70883521:28110/18:63519036 - isvavai.cz</a>
Alternative codes found
RIV/67985874:_____/18:00483265 RIV/70883521:28610/18:63519036
Result on the web
<a href="http://dx.doi.org/10.1108/SR-05-2017-0079" target="_blank" >http://dx.doi.org/10.1108/SR-05-2017-0079</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1108/SR-05-2017-0079" target="_blank" >10.1108/SR-05-2017-0079</a>
Alternative languages
Result language
angličtina
Original language name
Effect of pre-strain and KMnO4 oxidation of carbon nanotubes embedded in polyurethane on strain dependent electrical resistance of the composite
Original language description
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.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10404 - Polymer science
Result continuities
Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2018
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Sensor Review
ISSN
0260-2288
e-ISSN
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Volume of the periodical
38
Issue of the periodical within the volume
2
Country of publishing house
GB - UNITED KINGDOM
Number of pages
8
Pages from-to
163-170
UT code for WoS article
000426784200005
EID of the result in the Scopus database
2-s2.0-85037353010