Specific rheological and electrical features of carbon nanotube dispersions in an epoxy matrix

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dc.contributor.authorChapartegui, M.
dc.contributor.authorMarkaide, N.
dc.contributor.authorFlorez, S.
dc.contributor.authorElizetxea, C.
dc.contributor.authorFernandez, M.
dc.contributor.authorSantamaría, A.
dc.contributor.institutionPOLIMEROS
dc.date.accessioned2024-07-24T12:10:50Z
dc.date.available2024-07-24T12:10:50Z
dc.date.issued2010-05
dc.description.abstractThe rheological analysis of epoxy pre-polymer/MWCNT dispersions indicates that a physical network is formed. This is destroyed with an imposed shear, giving a viscoplastic and shear thinning behavior. Such destruction is not reflected in dynamic viscoelastic experiments, due to the very rapid recovery of the MWCNT network in the pre-polymer matrix. This responds to the observed lower electrical than rheological percolation threshold. Electrical conductivity results fulfill electron hopping/tunnelling mechanism, which implies a tube-tube distance close to 5. nm. However, rheological percolation requires nanotubes should touch each other, since no polymer chains are implied in the network.en
dc.description.statusPeer reviewed
dc.format.extent6
dc.identifier.citationChapartegui , M , Markaide , N , Florez , S , Elizetxea , C , Fernandez , M & Santamaría , A 2010 , ' Specific rheological and electrical features of carbon nanotube dispersions in an epoxy matrix ' , Composites Science and Technology , vol. 70 , no. 5 , pp. 879-884 . https://doi.org/10.1016/j.compscitech.2010.02.008
dc.identifier.doi10.1016/j.compscitech.2010.02.008
dc.identifier.issn0266-3538
dc.identifier.urihttps://hdl.handle.net/11556/4118
dc.identifier.urlhttp://www.scopus.com/inward/record.url?scp=77950525572&partnerID=8YFLogxK
dc.language.isoeng
dc.relation.ispartofComposites Science and Technology
dc.rightsinfo:eu-repo/semantics/restrictedAccess
dc.subject.keywordsA. Carbon nanotubes
dc.subject.keywordsA. Nanocomposites
dc.subject.keywordsB. Electrical properties
dc.subject.keywordsD. Rheology
dc.subject.keywordsEpoxy
dc.subject.keywordsCeramics and Composites
dc.subject.keywordsGeneral Engineering
dc.titleSpecific rheological and electrical features of carbon nanotube dispersions in an epoxy matrixen
dc.typejournal article
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