Morphology, optical transparency and oxygen barrier of EVOH/graphene oxide films

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dc.contributor.authorORTIZ, ANGEL
dc.contributor.authorAKBULUT, MESHUDE
dc.contributor.authorSANTANA, JULYANA G.
dc.contributor.authorRANGARI, VIJAY K.
dc.contributor.authorVALENZUELA-DIAZ, FRANCISCO
dc.contributor.authorGUVEN, OLGUN
dc.contributor.authorMOURA, ESPERIDIANA
dc.coverageInternacionalpt_BR
dc.creator.eventoBRAZILIAN CONFERENCE ON COMPOSITE MATERIALS, 3rdpt_BR
dc.date.accessioned2016-10-10T13:46:57Z
dc.date.available2016-10-10T13:46:57Z
dc.date.eventoAugust 28-31, 2016pt_BR
dc.description.abstractFood packaging materials require high gas and moisture barrier in other to preserve the quality of the products during storage and handling. Polyolefin materials have been widely used due to their water vapor resistance. Ethylene–vinyl alcohol copolymer (EVOH) is used as a gas barrier layer in packaging products that require high gas barrier. However, EVOH is very sensitive to moisture and its gas barrier ability deteriorates in high relative humidity conditions. In order to overcome the adverse effects of moisture on EVOH film this paper studies the incorporation of small amount of graphene oxide in EVOH by melt processing and evaluates their effects on morphology, optical transparency and oxygen barrier of EVOH film. The EVOH/Graphene oxide (EVOH/GO) film were processed by twin-screw extrusion and extrusion blown film processing. The films was characterized by XRD, FEG-SEM, and UV/VIS analysis. In addition, the oxygen transmission rate (OTR) were performed at 23 C, 0 % and 90 % relative humidity using an OX-TRAN (MOCON Inc.). According to the results of the optical transparency measured, the EVOH/GO retaining good transparency films for all graphene oxide percentage added. The graphene oxide at only 0.1 wt. % into the EVOH matrix drastically improved the oxygen barrier properties of EVOH/GO flexible film in both, 0 % and 90 % of the relative humidity test conditions.pt_BR
dc.event.siglaBCCMpt_BR
dc.identifier.citationORTIZ, ANGEL; AKBULUT, MESHUDE; SANTANA, JULYANA G.; RANGARI, VIJAY K.; VALENZUELA-DIAZ, FRANCISCO; GUVEN, OLGUN; MOURA, ESPERIDIANA. Morphology, optical transparency and oxygen barrier of EVOH/graphene oxide films. In: BRAZILIAN CONFERENCE ON COMPOSITE MATERIALS, 3rd, August 28-31, 2016, Gramado, RS. <b>Proceedings...</b> Disponível em: http://repositorio.ipen.br/handle/123456789/26740.
dc.identifier.orcidhttps://orcid.org/0000-0003-3546-1643
dc.identifier.urihttp://repositorio.ipen.br/handle/123456789/26740
dc.local.eventoGramado, RSpt_BR
dc.rightsopenAccesspt_BR
dc.subjectpackaging
dc.subjectgraphene
dc.subjectethylene
dc.subjectalcohols
dc.subjectcopolymers
dc.subjectmorphology
dc.titleMorphology, optical transparency and oxygen barrier of EVOH/graphene oxide filmspt_BR
dc.typeTexto completo de eventopt_BR
dspace.entity.typePublication
ipen.autorJULYANA GALVÃO SANTANA
ipen.autorESPERIDIANA AUGUSTA BARRETOS DE MOURA
ipen.autorANGEL VISENTIM ORTIZ
ipen.codigoautor14365
ipen.codigoautor1045
ipen.codigoautor8386
ipen.contributor.ipenauthorJULYANA GALVÃO SANTANA
ipen.contributor.ipenauthorESPERIDIANA AUGUSTA BARRETOS DE MOURA
ipen.contributor.ipenauthorANGEL VISENTIM ORTIZ
ipen.date.recebimento16-10pt_BR
ipen.event.datapadronizada2016pt_BR
ipen.identifier.ipendoc22626pt_BR
ipen.notas.internasProceedingspt_BR
ipen.type.genreArtigo
relation.isAuthorOfPublicationf24a43e1-5d5b-4114-a984-092bd447ee91
relation.isAuthorOfPublication6bf804a8-aeed-4e9c-bad7-fdec1b1e9a47
relation.isAuthorOfPublicationc958dafd-1437-4385-a407-38a87f44c1e1
relation.isAuthorOfPublication.latestForDiscoveryc958dafd-1437-4385-a407-38a87f44c1e1
sigepi.autor.atividadeORTIZ, ANGEL:8386:220:Spt_BR
sigepi.autor.atividadeSANTANA, JULYANA G.:14365:-1:Npt_BR
sigepi.autor.atividadeMOURA, ESPERIDIANA:1045:740:Npt_BR
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