Počet záznamů: 1
Electrical characteristics of different concentration of silica nanoparticles embedded in epoxy resin
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SYSNO ASEP 0579568 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Electrical characteristics of different concentration of silica nanoparticles embedded in epoxy resin Tvůrce(i) Al Soud, A. (CZ)
Daradkeh, Samer I. (CZ)
Knápek, Alexandr (UPT-D) RID, ORCID, SAI
Holcman, V. (CZ)
Sobola, D. (CZ)Celkový počet autorů 5 Číslo článku 125520 Zdroj.dok. Physica Scripta. - : Institute of Physics Publishing - ISSN 0031-8949
Roč. 98, č. 12 (2023)Poč.str. 14 s. Forma vydání Tištěná - P Jazyk dok. eng - angličtina Země vyd. US - Spojené státy americké Klíč. slova epoxy resin ; dielectric spectroscopy ; epoxy nanocomposite ; polymer Vědní obor RIV JJ - Ostatní materiály Obor OECD Nano-materials (production and properties) Způsob publikování Open access Institucionální podpora UPT-D - RVO:68081731 UT WOS 001108124700001 EID SCOPUS 85179176725 DOI 10.1088/1402-4896/ad070c Anotace In 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 10-2-107 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. Pracoviště Ústav přístrojové techniky Kontakt Martina Šillerová, sillerova@ISIBrno.Cz, Tel.: 541 514 178 Rok sběru 2024 Elektronická adresa https://iopscience.iop.org/article/10.1088/1402-4896/ad070c
Počet záznamů: 1