Influence of the ionic and nonionic surfactants mixture in the structure and properties of the modified bentonite clay

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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.accessioned2021-11-23T14:09:34Z
dc.date.available2021-11-23T14:09:34Z
dc.date.issued2018-12-15
dc.description.resumoA new surface modification in calcium bentonite clay (Bent-Ca) was investigated in this work, from the sequential intercalation of three types of surfactants: cetyltrimethylammoniumbromide (CTAB), cationic surfactant, sodiumdodecyl sulfate (SDS), anionic surfactant, and lauryl alcohol ethoxylated (ALEO), nonionic surfactant. Three modifications in the Bent-Cawere prepared in aqueous solution obtaining conventionally the OBent-Iwith CTAB and OBent-IIwith CTAB+SDS, beyond the newmodification OBent-IIIwith TAB+SDS+ALEO. The synergistic effect of the sequentialmixture of surfactants used in the surfacemodification of Bent-Ca was characterized by X-ray Diffraction (XRD), Fourier Transform by Infrared Radiation (FTIR), Scanning Electron Microscopy (SEM), Energy Dispersion Spectroscopy (EDS), Optical Microscopy (OM), Thermogravimetric Analysis (TG), Contact Angle Test and Swelling Index. The results indicated that OBent-III was the reinforcement material among the analyzed ones that presented the highest values of basal spacing (13 nm), thermal stability (400 °C), superficial lipophilicity index (79.76°) and swelling index in polar or apolar medium (6–10 mL/g). Therefore, a reinforcing material suitable for various applications was proposedpt_BR
dc.identifier.citationMONTEIRO, Mayra Kerolly Sales; OLIVEIRA, Victor Rafael Leal de; SANTOS, Francisco Klebson Gomes dos; BARROS NETO, Eduardo Lins de; LEITE, Ricardo Henrique de Lima; AROUCHA, Edna Maria Mendes; SILVA, Karyn Nathallye de Oliveira. Influence of the ionic and nonionic surfactants mixture in the structure and properties of the modified bentonite clay. Journal Of Molecular Liquids, [S.L.], v. 272, p. 990-998, dez. 2018. Disponível em: https://www.sciencedirect.com/science/article/abs/pii/S0167732218306366?via%3Dihub. Acesso em: 22 jun. 2021. https://doi.org/10.1016/j.molliq.2018.10.113.pt_BR
dc.identifier.doi10.1016/j.molliq.2018.10.113
dc.identifier.issn0167-7322
dc.identifier.urihttps://repositorio.ufrn.br/handle/123456789/44984
dc.languageenpt_BR
dc.publisherElsevierpt_BR
dc.rightsAttribution 3.0 Brazil*
dc.rights.urihttp://creativecommons.org/licenses/by/3.0/br/*
dc.subjectBentonitept_BR
dc.subjectSurface modificationpt_BR
dc.subjectSurfactant blendpt_BR
dc.subjectIntercalationpt_BR
dc.subjectDispersionpt_BR
dc.titleInfluence of the ionic and nonionic surfactants mixture in the structure and properties of the modified bentonite claypt_BR
dc.typearticlept_BR

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