The effect of nanotube surface oxidation on the electrical properties of multiwall carbon nanotube/poly(vinylidene ¿uoride) composites

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dc.contributor	Universitat Politècnica de Catalunya. Departament de Ciència dels Materials i Enginyeria Metal·lúrgica
dc.contributor.author	Carabineiro, S.A.C.
dc.contributor.author	Pereira, M.F.R.
dc.contributor.author	Nunes-Pereira, Joao
dc.contributor.author	Silva, Jaime
dc.contributor.author	Caparrós Vázquez, Cristina Maria
dc.contributor.author	Sencadas, Vitor
dc.contributor.author	Lanceros Méndez, Senentxu
dc.date	2012-07-13
dc.identifier.citation	Carabineiro, S.A.C. [et al.]. The effect of nanotube surface oxidation on the electrical properties of multiwall carbon nanotube/poly(vinylidene ¿uoride) composites. "Journal of Material Science", 13 Juliol 2012, vol. 47, p. 8103-8111.
dc.identifier.citation	10.1007/s10853-012-6705-7
dc.identifier.uri	http://hdl.handle.net/2117/22875
dc.language.iso	eng
dc.relation	http://link.springer.com/article/10.1007%2Fs10853-012-6705-7
dc.rights	Attribution-NonCommercial-NoDerivs 3.0 Spain
dc.rights	info:eu-repo/semantics/openAccess
dc.rights	http://creativecommons.org/licenses/by-nc-nd/3.0/es/
dc.subject	Àrees temàtiques de la UPC::Enginyeria dels materials
dc.subject	Carbon nanotubes
dc.subject	Nanotubs de carboni
dc.title	The effect of nanotube surface oxidation on the electrical properties of multiwall carbon nanotube/poly(vinylidene ¿uoride) composites
dc.type	info:eu-repo/semantics/publishedVersion
dc.type	info:eu-repo/semantics/article
dc.description.abstract	Carbon nanotube/poly(vinylidene fluoride) (CNT/PVDF) composites were prepared using CNT with different oxidation and thermal treatments. The oxidation procedure leads to CNT with the most acidic characteristics that lower the degree of crystallinity of the polymer and contribute to a large increase of the dielectric constant. The surface treatments, in general, increase the percolation threshold and decrease conductivity. The surface treatments do not seem to affect CNT interactions and similar degrees of dispersion are achieved in all cases, as shown by the SEM results. The maximum value of the dielectric constant is ~630. It is demonstrated that the composite conductivity can be attributed to a hopping mechanism that is strongly affected by the surface treatment of the CNT.
dc.description.abstract	Peer Reviewed

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