Enhanced strain detection ability of epoxy/glass fibres composite with embedded carbon nanotubes network by KMnO4 oxidation

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F70883521%3A28610%2F16%3A43875132" target="_blank" >RIV/70883521:28610/16:43875132 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Enhanced strain detection ability of epoxy/glass fibres composite with embedded carbon nanotubes network by KMnO4 oxidation
Original language description
This work describes the preparation technique and testing method of multi-functional glass reinforced epoxy laminates with embedded carbon nanotubes (CNTs) network with strain detection ability. It was found that straining of this structure leads to reversible increase of its macroscopic resistance with sensitivity to strain defined by gauge factor GF ~ 2.4. This new functionality was further increased by CNTs proper oxidation using acidic KMnO4 agent reaching enhanced value of GF ~ 5.9. This improvement can be explained in terms of increased CNTs network contact resistance of tunnelling kind when applied strain leads to sharp contact resistance changes in CNTs junctions for oxidized tubes compared to non-treated one.
Czech name
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Czech description
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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)

Publication year
2016
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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