Please use this identifier to cite or link to this item: http://hdl.handle.net/1822/22615

TitlePiezoresistive response of Pluronic wrapped single wall carbon nanotube : epoxy composites
Author(s)Gonzalez-Dominguez, J. M.
Ansón-Casaos, A.
Martinez, M. T.
Ferreira, A.
Vaz, F.
Lanceros-Méndez, S.
KeywordsPiezoresistive
Gauge factor
Carbon nanotube composites
Polymers
Issue date2012
PublisherSAGE
JournalJournal of Intelligent Material Systems and Structures
Abstract(s)This paper reports on the piezoresistive behavior of polymer-based nanocomposites, composed of epoxy resins and Pluronic-wrapped carbon nanotubes (CNTs). The samples were prepared with CNT concentrations up to 1 wt.%. Good CNT dispersion was achieved due to the Pluronic wrapping of the CNT, as confirmed by electron and atomic force microscopies. The correlation between the electrical resisitivity and mechanical solicitations was obtained for varying mechanical solicitations. The electrical response is linear over a wide strain range and the values of the gauge factor are ~2.6. The stability of the signal over 32 cycles, the time response to deformatoins from 0.1 to 50 mm min-1 and the stable temperature behavior up to 60 ºC shows the viability of these materials to be used as piezoresistive sensors..
TypeArticle
URIhttp://hdl.handle.net/1822/22615
DOI10.1177/1045389X12442015
ISSN1045-389X
1530-8138
Publisher versionhttp://jim.sagepub.com/
Peer-Reviewedyes
AccessRestricted access (UMinho)
Appears in Collections:CDF - FCD - Artigos/Papers (with refereeing)

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