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Rheological properties of tin oxide suspensions

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dc.contributor.authorSantos, Iêda Maria Garcia dos
dc.contributor.authorSouza, Antônio Gouveia de
dc.contributor.authorSensato, Fabrício Ronil
dc.contributor.authorLeite, Edson Roberto
dc.contributor.authorLongo, Elson [UNESP]
dc.contributor.authorVarela, José Arana [UNESP]
dc.contributor.institutionUniversidade Federal de São Carlos (UFSCar)
dc.contributor.institutionUniversidade Federal da Paraíba (UFPB)
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2014-05-27T11:20:29Z
dc.date.available2014-05-27T11:20:29Z
dc.date.issued2002-08-01
dc.description.abstractThe rheological properties of tin oxide slurries were studied experimentally and theoretically. The deflocculants used were ammonium polyacrilate (PAA) and the copolymer poly(vinyl butyral-co-vinyl alcohol-co-vinyl acetate) (PVB-PVA-PVAc), in water and ethanol, respectively. The amount of deflocculant was optimized for different solid contents by means of viscosity measurements. In spite of the high stability of PVB-dispersed slurries, a high solid concentration was not obtained. On the other hand, a slurry with a 56.4 vol.% of solids was attained when PAA was used. A theoretical study of the adsorption of PAA in its dissociated (basic solution) and non-dissociated (acidic solution) forms on SnO 2 (110) is presented. This analysis was made by means of the PM3 method using a large cluster Sn 15O 28 for the surface model. The calculated adsorption energy is larger for the ionized PAA than for the non-ionized form, indicating that alkaline slurries favor PAA adsorption on the SnO 2 surface. © 2002 Elsevier Science Ltd. All rights reserved.en
dc.description.affiliationLIEC Departamento de Química UFSCar, Rod. Washington Luis, km 235, Cep 13565-905, Sao Carlos, SP
dc.description.affiliationLTM Departamento de Química/CCEN/UFPB Cidade Universitária, Campus i, Cep 58059-900, Joao Pessoa, PB
dc.description.affiliationUniversidade Estadual Paulista Instituto de Química, r. Prof. Francicsco Degni, s/n, Cep 14800-900, Araraquara, SP
dc.description.affiliationUniversidade Federal da Paraiba Departamento de Química Cidade Universitária, Campus 1, Cep 58059-900 Joao Pessoa, PB
dc.description.affiliationUnespUniversidade Estadual Paulista Instituto de Química, r. Prof. Francicsco Degni, s/n, Cep 14800-900, Araraquara, SP
dc.format.extent1297-1306
dc.identifierhttp://dx.doi.org/10.1016/S0955-2219(01)00440-X
dc.identifier.citationJournal of the European Ceramic Society, v. 22, n. 8, p. 1297-1306, 2002.
dc.identifier.doi10.1016/S0955-2219(01)00440-X
dc.identifier.issn0955-2219
dc.identifier.scopus2-s2.0-0036680765
dc.identifier.urihttp://hdl.handle.net/11449/66944
dc.identifier.wosWOS:000175329300014
dc.language.isoeng
dc.relation.ispartofJournal of the European Ceramic Society
dc.relation.ispartofjcr3.794
dc.relation.ispartofsjr1,068
dc.rights.accessRightsAcesso restrito
dc.sourceScopus
dc.subjectAdsorption
dc.subjectDeflocculants
dc.subjectModelling-adsorption
dc.subjectRheology
dc.subjectSnO 2
dc.subjectAmmonium compounds
dc.subjectEthanol
dc.subjectSlurries
dc.subjectVinyl resins
dc.subjectViscosity measurement
dc.subjectWater
dc.subjectAdsorption energy
dc.subjectTin compounds
dc.subjectadsorption
dc.subjectrheology
dc.subjectsuspension
dc.subjecttin oxide
dc.titleRheological properties of tin oxide suspensionsen
dc.typeArtigo
dcterms.licensehttp://www.elsevier.com/about/open-access/open-access-policies/article-posting-policy
unesp.campusUniversidade Estadual Paulista (Unesp), Instituto de Química, Araraquarapt
unesp.departmentFísico-Química - IQARpt

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