Electrical characteristics of different concentration of silica nanoparticles embedded in epoxy resin

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dc.contributor.authorAL Soud, Ammarcs
dc.contributor.authorDaradkeh, Samercs
dc.contributor.authorKnápek, Alexandrcs
dc.contributor.authorHolcman, Vladimírcs
dc.contributor.authorSobola, Dinaracs
dc.coverage.issue1cs
dc.coverage.volume98cs
dc.date.issued2023-12-01cs
dc.description.abstractIn this study, modified epoxy nanocomposite was produced by incorporating SiO2 nanoparticles of 15–30 nm in size, with different concentrations ranging from 1 to 20 wt%. The electrical properties of the epoxy nanocomposite were measured at room temperature in the frequency range of 102–107 Hz. To determine the impact of nanoparticles on the epoxy composition, scanning electron microscopy-energy dispersive x-ray spectroscopy (SEM-EDS), Fourier transform infrared spectra (FTIR) spectroscopy, and Raman spectroscopy were conducted. With an increase in filler (SiO2 nanoparticles) content, the electrical characteristics of the epoxy nanocomposite exhibited multiple changes. At low concentrations, all electrical properties experienced a notable increase. The epoxy with 15 wt% of SiO2 nanoparticles samples had a lower permittivity, loss number, conductivity, and capacitance than the unfilled epoxy. At medium concentrations (5 to 15 wt%), the formation of immobilized nanolayers has an impact on permittivity, loss number, conductivity, and capacitance, which have decreased; impedance and modulus increased. The initiation of contact between the nanofillers at a concentration of 20 wt% leads to the formation of continuous interfacial conductive pathways, resulting in a dramatic increase in the permittivity, conductivity, and capacitance of the composites, while concurrently reducing impedance.en
dc.formattextcs
dc.format.extent1-14cs
dc.format.mimetypeapplication/pdfcs
dc.identifier.citationPHYSICA SCRIPTA. 2023, vol. 98, issue 1, p. 1-14.en
dc.identifier.doi10.1088/1402-4896/ad070ccs
dc.identifier.issn1402-4896cs
dc.identifier.orcid0000-0003-0752-8214cs
dc.identifier.orcid0000-0001-7402-4660cs
dc.identifier.orcid0000-0002-0008-5265cs
dc.identifier.other185093cs
dc.identifier.researcheridE-6640-2013cs
dc.identifier.researcheridE-2366-2012cs
dc.identifier.researcheridG-1175-2019cs
dc.identifier.scopus36544102200cs
dc.identifier.scopus25928429400cs
dc.identifier.scopus57189064262cs
dc.identifier.urihttp://hdl.handle.net/11012/244176
dc.language.isoencs
dc.publisherIOP Publishingcs
dc.relation.ispartofPHYSICA SCRIPTAcs
dc.relation.urihttps://iopscience.iop.org/article/10.1088/1402-4896/ad070ccs
dc.rightsCreative Commons Attribution 4.0 Internationalcs
dc.rights.accessopenAccesscs
dc.rights.sherpahttp://www.sherpa.ac.uk/romeo/issn/1402-4896/cs
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/cs
dc.subjectEpoxy resinen
dc.subjectdielectric spectroscopyeen
dc.subjectpoxy nanocompositeen
dc.subjectand polymeren
dc.titleElectrical characteristics of different concentration of silica nanoparticles embedded in epoxy resinen
dc.type.driverarticleen
dc.type.statusPeer-revieweden
dc.type.versionpublishedVersionen
sync.item.dbidVAV-185093en
sync.item.dbtypeVAVen
sync.item.insts2025.02.03 15:40:33en
sync.item.modts2025.01.17 18:40:22en
thesis.grantorVysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií. Ústav fyzikycs
thesis.grantorVysoké učení technické v Brně. Středoevropský technologický institut VUT. Pokročilé keramické materiálycs
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Pokročilé keramické materiály