Probing the epoxy insulation of smoothing reactors with graphene ink

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dc.contributor.authorFARIA, GABRIEL H. de
dc.contributor.authorARAUJO, LIVIA C. dos P.
dc.contributor.authorLOPES, GUSTAVO P.
dc.contributor.authorWANDERLEY NETO, ESTACIO T.
dc.contributor.authorLEYVA, MARIA E.
dc.contributor.authorQUEIROZ, ALVARO A.A. de
dc.coverageInternacional
dc.date.accessioned2024-06-14T10:59:33Z
dc.date.available2024-06-14T10:59:33Z
dc.date.issued2024
dc.description.abstractElectrically conductive inks (ECIs) are up to now a growing research field, to create flexible circuits for power engineering. As a result, research into screen printing of conductive electrodes onto fiberglass-epoxy-reinforced laminates (FGERLs) has emerged. In this study, an ECI based on reduced graphene oxide (rGO) is proposed for screen printing of conductive electrodes on FGERL used in insulation of the high-voltage direct current smoothing reactors (HVDCSRs). The electrically conductive reduced graphene oxide ink (ECrGOI) was fabricated by mixing rGO, hyperbranched polyglycerol (HPGL) as an adhesion promoter, and poly (vinyl alcohol) (PVA) as a binding agent. The ECrGOI electrodes exhibited adhesion strength of 3.7 ± 0.3 N/mm2 and conductivity of 1.2.10-4 S/cm at percolation threshold starting at less than 7.5 wt.% of rGO. The thermogravimetric analysis (TGA) indicates that ECrGOI exhibited good thermal stability at 400 °C. The attractive electric, thermal, and adhesive properties, combined with the ease of preparation and solution-processing capability, indicate that ECrGOI may have great potential applications in analysis of insulation produced by FGERL used in encapsulation of smoothing reactors.
dc.description.sponsorshipConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de Minas Gerais (FAPEMIG)
dc.description.sponsorshipIDCNPq: 305894/2014-5
dc.description.sponsorshipIDFAPEMIG: TEC-APQ-02676-16
dc.format.extent1177-1184
dc.identifier.citationFARIA, GABRIEL H. de; ARAUJO, LIVIA C. dos P.; LOPES, GUSTAVO P.; WANDERLEY NETO, ESTACIO T.; LEYVA, MARIA E.; QUEIROZ, ALVARO A.A. de. Probing the epoxy insulation of smoothing reactors with graphene ink. <b>IEEE Transactions on Dielectrics and Electrical Insulation</b>, v. 31, n. 3, p. 1177-1184, 2024. DOI: <a href="https://dx.doi.org/10.1109/TDEI.2024.3350559">10.1109/TDEI.2024.3350559</a>. Disponível em: https://repositorio.ipen.br/handle/123456789/48098.
dc.identifier.doi10.1109/TDEI.2024.3350559
dc.identifier.fasciculo3
dc.identifier.issn1070-9878
dc.identifier.percentilfi61.0
dc.identifier.percentilfiCiteScore73.00
dc.identifier.urihttps://repositorio.ipen.br/handle/123456789/48098
dc.identifier.vol31
dc.relation.ispartofIEEE Transactions on Dielectrics and Electrical Insulation
dc.rightsopenAccess
dc.subjectgraphene
dc.subjectoxides
dc.subjectinks
dc.subjectelectric conductivity
dc.subjectmeasuring methods
dc.subjectthermal gravimetric analysis
dc.titleProbing the epoxy insulation of smoothing reactors with graphene ink
dc.typeArtigo de periódico
dspace.entity.typePublication
ipen.autorÁLVARO ANTONIO ALENCAR DE QUEIROZ
ipen.codigoautor7319
ipen.contributor.ipenauthorÁLVARO ANTONIO ALENCAR DE QUEIROZ
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ipen.identifier.fiCiteScore6.0
ipen.identifier.ipendoc30409
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ipen.type.genreArtigo
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sigepi.autor.atividadeÁLVARO ANTONIO ALENCAR DE QUEIROZ:7319:-1:N
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