Polyacrylamide copolymer/aminated carbon nanotube-based aqueous nanofluids for application in high temperature and salinity

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dc.creatorMeiriane Cristina Faria Soares Lima
dc.creatorSthéfany Zaida Silva do Amparo
dc.creatorEder José Siqueira
dc.creatorDouglas Rodrigues Miquita
dc.creatorVinicius Caliman
dc.creatorGlaura Goulart Silva
dc.date.accessioned2023-03-21T18:49:13Z
dc.date.accessioned2025-09-08T23:42:08Z
dc.date.available2023-03-21T18:49:13Z
dc.date.issued2018-07
dc.description.sponsorshipCNPq - Conselho Nacional de Desenvolvimento Científico e Tecnológico
dc.description.sponsorshipOutra Agência
dc.identifier.doihttps://doi.org/10.1002/app.46382
dc.identifier.issn1097-4628
dc.identifier.urihttps://hdl.handle.net/1843/51101
dc.languageeng
dc.publisherUniversidade Federal de Minas Gerais
dc.relation.ispartofJournal of Applied Polymer Science
dc.rightsAcesso Restrito
dc.subjectMicroscopia química
dc.subjectReologia
dc.subjectViscosidade
dc.subjectViscoelasticidade
dc.subjectNanotubos de carbono
dc.subjectCopolímeros
dc.subjectPoliacrilamida
dc.subjectNanopartículas
dc.subjectMateriais nanoestruturados
dc.subjectTermogravimetria
dc.subjectCalorimetria
dc.subjectEspectroscopia fotoeletonica
dc.subjectFourier, Espectroscopia de infravermelho por transformada de
dc.subjectMicroscopia eletronica
dc.subject.otherOil and gas
dc.subject.otherRheology
dc.subject.otherViscosity and viscoelasticity
dc.titlePolyacrylamide copolymer/aminated carbon nanotube-based aqueous nanofluids for application in high temperature and salinity
dc.typeArtigo de periódico
local.citation.issue25
local.citation.volume135
local.description.resumoPolymer aqueous nanofluids have numerous industrial applications due to their synergic properties as a polymer and nanoparticle in the same fluid. The main goal of this work was to prepare stable aqueous nanofluids with improved viscosity in high temperature and salinity conditions. Aminated carbon nanotube (OCNT-TEPA) presented a C--N photoemission peak at 285.5 eV in X-ray photoelectron spectroscopy spectra, which is evidence of a grafting reaction. Fourier transform infrared spectra presented absorption bands attributed to amide and amine bonds. Elemental analyses showed 1.9 and 3.2 mass % N content increases for OCNT-TEPA and OCNT-TEPA-AM, respectively. Samples aged at 70 °C in brine confirmed that the addition of OCNT-TEPA increased the viscosity of nanofluids to 30% at day 90 compared to acrylamide–acrylic acid copolymer fluids. Nanotubes presented only 35% of the aminated functions compared to carbon black (Lima et al., Carbon 2016, 109, 209) , and their effects in the enhancement of viscosity and thermal and colloidal stability were 2× greater.
local.identifier.orcidhttps://orcid.org/0000-0002-3239-6172
local.identifier.orcidhttps://orcid.org/0000-0002-8982-8415
local.identifier.orcidhttps://orcid.org/0000-0003-3147-7103
local.identifier.orcidhttps://orcid.org/0000-0001-5319-4652
local.identifier.orcidhttps://orcid.org/0000-0002-3098-1562
local.identifier.orcidhttps://orcid.org/0000-0002-0308-0179
local.publisher.countryBrasil
local.publisher.departmentCMI - CENTRO DE MICROSCOPIA
local.publisher.departmentICX - DEPARTAMENTO DE QUÍMICA
local.publisher.initialsUFMG
local.url.externahttps://onlinelibrary.wiley.com/doi/10.1002/app.46382

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