Synergistic effect of the sequential intercalation of three types of surfactants in the exfoliation degree of bentonite clay in films of cassava

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dc.contributor.authorMonteiro, Mayra Kerolly Sales
dc.contributor.authorOliveira, Victor Rafael Leal de
dc.contributor.authorSantos, Francisco Klebson Gomes dos
dc.contributor.authorBarros Neto, Eduardo Lins de
dc.contributor.authorLeite, Ricardo Henrique de Lima
dc.contributor.authorAroucha, Edna Maria Mendes
dc.contributor.authorSilva, Karyn Nathallye de Oliveira
dc.date.accessioned2021-11-23T13:57:11Z
dc.date.available2021-11-23T13:57:11Z
dc.date.issued2018-09-15
dc.description.resumoA method of obtaining exfoliated nanocomposite films based on biopolymers has been reported. The method is based on the incorporation ofmodified bentonite clay bymixing surfactants into a biodegradablematrix. The biopolymer used was cassava starch, which has a high hydrophilicity, which makes it less desirable than synthetic polymers, when used as a film matrix for coating. The improvement of this was proposed with the formation of a nanocomposite matrix by the high exfoliation of themodified bentonite clay used as reinforcement material. The degree of exfoliation of the sequential modification in bentonite with three surfactants throughout the cassava starch filmwas investigated by XRD, FTIR, AFM, SEM,OMand contact angle. The physicochemical properties of the nanocomposite films were analyzed for water vapor permeability, ductility, opacity, thermal stability and water solubility. Finally, the claymodified in the presence of the three surfactantswas the reinforcementmaterial that contributed the most to the physical/chemical properties of the control starch film, amongwhich it reduced 90.6% of the water vapor permeability, as well as 77.43% of the maximum dissolutionpt_BR
dc.identifier.citationMONTEIRO, MAYRA KEROLLY SALES ; DE OLIVEIRA, VICTOR RAFAEL LEAL ; DOS SANTOS, FRANCISCO KLEBSON GOMES ; DE BARROS NETO, EDUARDO LINS ; DE LIMA LEITE, RICARDO HENRIQUE ; AROUCHA, EDNA MARIA MENDES ; DE OLIVEIRA SILVA, KARYN NATHALLYE . Synergistic effect of the sequential intercalation of three types of surfactants in the exfoliation degree of bentonite clay in films of cassava. JOURNAL OF MOLECULAR LIQUIDS, v. 266, p. 770-780, 2018. Disponível em: https://repositorio.ufrn.br/submit#dc_subject. Acesso em: 22 jun. 2021. https://doi.org/10.1016/j.molliq.2018.07.012.pt_BR
dc.identifier.doi10.1016/j.molliq.2018.07.012
dc.identifier.issn0167-7322
dc.identifier.urihttps://repositorio.ufrn.br/handle/123456789/44982
dc.languageenpt_BR
dc.publisherElsevierpt_BR
dc.rightsAttribution 3.0 Brazil*
dc.rights.urihttp://creativecommons.org/licenses/by/3.0/br/*
dc.subjectBiodegradable filmpt_BR
dc.subjectNanocompositept_BR
dc.subjectPhysicochemical propertiespt_BR
dc.subjectModified claypt_BR
dc.subjectSurfactantspt_BR
dc.titleSynergistic effect of the sequential intercalation of three types of surfactants in the exfoliation degree of bentonite clay in films of cassavapt_BR
dc.typearticlept_BR

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