Customizing thermally-reduced graphene oxides for electrically conductive or mechanical reinforced epoxy nanocomposites

Graphene oxide (GO) can be produced through diverse synthetic routes in large quantities that lead to clear differences in the resulting graphene morphology and properties. Here, we analysed the effect of several thermally reduced graphene oxides (TRGOs), at two different concentrations, on the elec...

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Autores: Vázquez-Moreno, Jose M., Yuste, Vanesa, Sánchez-Hidalgo, Rubén, Verdejo, Raquel, López-Manchado, Miguel A., Fernández-García, Laura, Blanco, C., Menéndez López, Rosa María
Formato: artículo
Estado:Versión aceptada para publicación
Fecha de publicación:2017
País:España
Recursos:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/155317
Acesso em linha:http://hdl.handle.net/10261/155317
Access Level:acceso abierto
Palavra-chave:Epoxy
Hummers
Polymer nanocomposites
Brodie
Graphene
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spelling Customizing thermally-reduced graphene oxides for electrically conductive or mechanical reinforced epoxy nanocompositesVázquez-Moreno, Jose M.Yuste, VanesaSánchez-Hidalgo, RubénVerdejo, RaquelLópez-Manchado, Miguel A.Fernández-García, LauraBlanco, C.Menéndez López, Rosa MaríaEpoxyHummersPolymer nanocompositesBrodieGrapheneGraphene oxide (GO) can be produced through diverse synthetic routes in large quantities that lead to clear differences in the resulting graphene morphology and properties. Here, we analysed the effect of several thermally reduced graphene oxides (TRGOs), at two different concentrations, on the electrical and mechanical properties of epoxy resin nanocomposites. Natural graphite was oxidised using two methods, Brodie (GO-B) and Hummers (GO-H), and, then, thermally reduced at different temperatures, 700, 1000, and 2000 °C. Intrinsic graphene properties, such as remaining oxygen groups, specific surface area, and aspect ratio, among others, have a profound effect on the final properties of the nanocomposite. The dispersion state was heavily influenced by the specific surface area and the remaining oxygen groups on the graphene. Meanwhile, the electrical and mechanical properties showed a strong and opposite dependency with the reduction temperature, with low temperatures resulting in flakes with high reinforcing characteristics and high temperatures in flakes with high electrical conductivity performance. Finally, TRGOs synthesised via Hummers and reduced at low temperatures appeared to be more suited as reinforcing particles, while TRGOs synthesised via Brodie were more effective as electrically conductive nanofillers.The authors gratefully acknowledge the financial support of the State Secretariat for Research, Development and Innovation of the Spanish Ministry of Economía y Competitividad, through the project MAT2013-48107-C3.Peer reviewedPeer ReviewedElsevierMinisterio de Economía y Competitividad (España)Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]2017201720172017info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Postprintinfo:eu-repo/semantics/acceptedVersionhttp://hdl.handle.net/10261/155317reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Ingléshttp://dx.doi.org/10.1016/j.eurpolymj.2017.05.026Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/1553172026-05-22T06:33:51Z
dc.title.none.fl_str_mv Customizing thermally-reduced graphene oxides for electrically conductive or mechanical reinforced epoxy nanocomposites
title Customizing thermally-reduced graphene oxides for electrically conductive or mechanical reinforced epoxy nanocomposites
spellingShingle Customizing thermally-reduced graphene oxides for electrically conductive or mechanical reinforced epoxy nanocomposites
Vázquez-Moreno, Jose M.
Epoxy
Hummers
Polymer nanocomposites
Brodie
Graphene
title_short Customizing thermally-reduced graphene oxides for electrically conductive or mechanical reinforced epoxy nanocomposites
title_full Customizing thermally-reduced graphene oxides for electrically conductive or mechanical reinforced epoxy nanocomposites
title_fullStr Customizing thermally-reduced graphene oxides for electrically conductive or mechanical reinforced epoxy nanocomposites
title_full_unstemmed Customizing thermally-reduced graphene oxides for electrically conductive or mechanical reinforced epoxy nanocomposites
title_sort Customizing thermally-reduced graphene oxides for electrically conductive or mechanical reinforced epoxy nanocomposites
dc.creator.none.fl_str_mv Vázquez-Moreno, Jose M.
Yuste, Vanesa
Sánchez-Hidalgo, Rubén
Verdejo, Raquel
López-Manchado, Miguel A.
Fernández-García, Laura
Blanco, C.
Menéndez López, Rosa María
author Vázquez-Moreno, Jose M.
author_facet Vázquez-Moreno, Jose M.
Yuste, Vanesa
Sánchez-Hidalgo, Rubén
Verdejo, Raquel
López-Manchado, Miguel A.
Fernández-García, Laura
Blanco, C.
Menéndez López, Rosa María
author_role author
author2 Yuste, Vanesa
Sánchez-Hidalgo, Rubén
Verdejo, Raquel
López-Manchado, Miguel A.
Fernández-García, Laura
Blanco, C.
Menéndez López, Rosa María
author2_role author
author
author
author
author
author
author
dc.contributor.none.fl_str_mv Ministerio de Economía y Competitividad (España)
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv Epoxy
Hummers
Polymer nanocomposites
Brodie
Graphene
topic Epoxy
Hummers
Polymer nanocomposites
Brodie
Graphene
description Graphene oxide (GO) can be produced through diverse synthetic routes in large quantities that lead to clear differences in the resulting graphene morphology and properties. Here, we analysed the effect of several thermally reduced graphene oxides (TRGOs), at two different concentrations, on the electrical and mechanical properties of epoxy resin nanocomposites. Natural graphite was oxidised using two methods, Brodie (GO-B) and Hummers (GO-H), and, then, thermally reduced at different temperatures, 700, 1000, and 2000 °C. Intrinsic graphene properties, such as remaining oxygen groups, specific surface area, and aspect ratio, among others, have a profound effect on the final properties of the nanocomposite. The dispersion state was heavily influenced by the specific surface area and the remaining oxygen groups on the graphene. Meanwhile, the electrical and mechanical properties showed a strong and opposite dependency with the reduction temperature, with low temperatures resulting in flakes with high reinforcing characteristics and high temperatures in flakes with high electrical conductivity performance. Finally, TRGOs synthesised via Hummers and reduced at low temperatures appeared to be more suited as reinforcing particles, while TRGOs synthesised via Brodie were more effective as electrically conductive nanofillers.
publishDate 2017
dc.date.none.fl_str_mv 2017
2017
2017
2017
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
Postprint
info:eu-repo/semantics/acceptedVersion
format article
status_str acceptedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/155317
url http://hdl.handle.net/10261/155317
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv http://dx.doi.org/10.1016/j.eurpolymj.2017.05.026
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,81155

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