Correlation of surface treatment, dispersion and mechanical properties of HDPE/CNT nanocomposites

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dc.citation.volume389
dc.contributor.authorFerreira, Filipe V.
dc.contributor.authorFrancisco, Wesley
dc.contributor.authorMenezes, Beatriz R. C.
dc.contributor.authorBrito, Felipe S.
dc.contributor.authorCoutinho, Andre S.
dc.contributor.authorCividanes, Luciana S.
dc.contributor.authorCoutinho, Aparecido dos Reis [UNIFESP]
dc.contributor.authorThim, Gilmar P.
dc.coverageAmsterdam
dc.date.accessioned2020-07-31T12:47:03Z
dc.date.available2020-07-31T12:47:03Z
dc.date.issued2016
dc.description.abstractThe effect of carbon nanotube treatment on the mechanical property of polyethylene/carbon nanotube composite (HDPE/CNT) was investigated. CNTs were initially treated with HCl and then with H2SO4/HNO3. Nanocomposites reinforced with untreated and treated CNTs were prepared by a mechanical mixture of the molten polymer. The results demonstrated a correlation among the surface treatment, dispersion and mechanical properties of HDPE/CNT composites. Raman spectroscopy and TGA analysis showed that both acid treatments removed efficiently amorphous carbon and residual metal catalysts of CNTs. However, these treatments not only removed impurities, they also decreased the crystallinity degree of CNTs due to the addition of oxygenated functional groups to the CNTs walls, as observed by XPS analysis. SEM micrographs revealed that the functional groups improved the CNTs dispersion in the polymeric matrix, resulting in an improvement of the mechanical properties of nanocomposites. (C)2016 Elsevier B.V. All rights reserved.en
dc.description.affiliationITA, Div Ciencias Fundamentals, Sao Jose Dos Campos, SP, Brazil
dc.description.affiliationUNIFESP, Div Engn Mat, Sao Jose Dos Campos, SP, Brazil
dc.description.affiliationUNIMEP, Lab Mat Carbonosos, Santa Barbara Doeste, SP, Brazil
dc.description.affiliationUnifespUniversidade Federal de São Paulo (UNIFESP), Divisão de Engenharia de Materiais, São José dos Campos, SP, Brazil
dc.description.sourceWeb of Science
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.description.sponsorshipConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.description.sponsorshipIDFAPESP: 2013/20218-0
dc.description.sponsorshipIDFAPESP: 2013/23042-0
dc.description.sponsorshipIDCNPq: 141197/2014-5
dc.format.extent921-929
dc.identifierhttp://dx.doi.org/10.1016/j.apsusc.2016.07.164
dc.identifier.citationApplied Surface Science. Amsterdam, v. 389, p. 921-929, 2016.
dc.identifier.doi10.1016/j.apsusc.2016.07.164
dc.identifier.issn0169-4332
dc.identifier.urihttps://repositorio.unifesp.br/handle/11600/56548
dc.identifier.wosWOS:000384577600113
dc.language.isoeng
dc.publisherElsevier Science Bv
dc.relation.ispartofApplied Surface Science
dc.rightsinfo:eu-repo/semantics/restrictedAccess
dc.subjectCarbon nanotubeen
dc.subjectSurface treatmenten
dc.subjectMechanical propertiesen
dc.titleCorrelation of surface treatment, dispersion and mechanical properties of HDPE/CNT nanocompositesen
dc.typeinfo:eu-repo/semantics/article
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