Electrical properties of silver-silicone rubber nanocomposites for high-voltage outdoor insulators

Página do item simplificado
dc.contributor.authorARAUJO, LIVIA C. dos P.
dc.contributor.authorLEYVA, MARIA E.
dc.contributor.authorWANDERLEY NETO, ESTACIO T.
dc.contributor.authorQUEIROZ, ALVARO A.A. de
dc.coverageInternacional
dc.date.accessioned2024-06-14T10:47:38Z
dc.date.available2024-06-14T10:47:38Z
dc.date.issued2024
dc.description.abstractCurrently, the selection of high-temperature vulcanizing silicone rubber (HTVSiR) formulations resistant to the growth of microorganisms and which suitable electrical properties plays an important role in the manufacture of the polymeric high-voltage outdoor insulators (HVOIs) with high lifetime. In this work, silver-HTVSiR nanocomposites (AgHTVSiR) formulations are prepared and their electrical and antimicrobial properties are presented. Ag nanoparticles were electrochemically synthesized and characterized by scanning electron microscopy-energy dispersive spectrometry (SEM-EDS), UV-visible (UV-Vis), and X-ray (XRD) spectroscopies. Thermogravimetric (TG/DTG) analysis is undertaken with the purpose of determining the thermal behavior of AgHTVSiR. The complex impedance analyses were conducted to investigate the electrical conduction mechanism of the AgHTVSiR nanocomposites via electrochemical impedance spectroscopy (EIS) within a frequency range from 0.1 Hz to 0.1 MHz. XRD revealed Ag nanoparticles of 50 nm in diameter size. The images of SEM-EDS evinced the homogeneity of Ag nanoparticles dispersion into the HTVSiR matrix. The incorporation of silver nanoparticles does not change the thermal stability of the AgHTVSiR nanocomposite as compared to neat HTVSiR. The AgHTVSiR nanocomposites have maximal values for real part (Z') at low frequencies. Z' is found to decrease as the frequency of the applied alternating electric field increases. Furthermore, there is an improvement in the permittivity values for the AgHTVSiR nanocomposites with an increase in the concentration of 0.1 wt.%-0.3 wt.% of the Ag nanoparticles. Also, the AgHTVSiR shows excellent antimicrobial efficacy against Trichoderma spp fungus. The impedance characteristics of the AgHTVSiR nanocomposite along with its high dielectric permittivity and excellent antimicrobial property make it suitable for application in HVOI.
dc.description.sponsorshipConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.description.sponsorshipIDCNPq: 307609/2018-9
dc.format.extent1161-1168
dc.identifier.citationARAUJO, LIVIA C. dos P.; LEYVA, MARIA E.; WANDERLEY NETO, ESTACIO T.; QUEIROZ, ALVARO A.A. de. Electrical properties of silver-silicone rubber nanocomposites for high-voltage outdoor insulators. <b>IEEE Transactions on Dielectrics and Electrical Insulation</b>, v. 31, n. 3, p. 1161-1168, 2024. DOI: <a href="https://dx.doi.org/10.1109/TDEI.2023.3349256">10.1109/TDEI.2023.3349256</a>. Disponível em: https://repositorio.ipen.br/handle/123456789/48097.
dc.identifier.doi10.1109/TDEI.2023.3349256
dc.identifier.fasciculo3
dc.identifier.issn1070-9878
dc.identifier.percentilfi61.0
dc.identifier.percentilfiCiteScore73.00
dc.identifier.urihttps://repositorio.ipen.br/handle/123456789/48097
dc.identifier.vol31
dc.relation.ispartofIEEE Transactions on Dielectrics and Electrical Insulation
dc.rightsopenAccess
dc.subjectdielectric properties
dc.subjectelectrochemistry
dc.subjectimpedance
dc.subjectspectroscopy
dc.subjectnanocomposites
dc.subjectrubbers
dc.subjectsilicon
dc.subjectsilver
dc.titleElectrical properties of silver-silicone rubber nanocomposites for high-voltage outdoor insulators
dc.typeArtigo de periódico
dspace.entity.typePublication
ipen.autorÁLVARO ANTONIO ALENCAR DE QUEIROZ
ipen.codigoautor7319
ipen.contributor.ipenauthorÁLVARO ANTONIO ALENCAR DE QUEIROZ
ipen.identifier.fi2.9
ipen.identifier.fiCiteScore6.0
ipen.identifier.ipendoc30408
ipen.identifier.iwosWoS
ipen.range.fi1.500 - 2.999
ipen.range.percentilfi50.00 - 74.99
ipen.type.genreArtigo
relation.isAuthorOfPublicatione7d5bfcd-02bd-4e2a-8b3a-b4a56eb4cdfa
relation.isAuthorOfPublication.latestForDiscoverye7d5bfcd-02bd-4e2a-8b3a-b4a56eb4cdfa
sigepi.autor.atividadeÁLVARO ANTONIO ALENCAR DE QUEIROZ:7319:-1:N
Pacote Original
Agora exibindo 1 - 1 de 1
Imagem de Miniatura
Nome:
30408.pdf
Tamanho:
9.22 MB
Formato:
Adobe Portable Document Format
Baixar
Licença do Pacote
Agora exibindo 1 - 1 de 1
Nenhuma Miniatura disponível
Nome:
license.txt
Tamanho:
1.71 KB
Formato:
Item-specific license agreed upon to submission
Descrição:
Baixar
Coleções
Periódicos