Detail publikace

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

AL SOUD, A. DARADKEH, S. KNÁPEK, A. HOLCMAN, V. SOBOLA, D.

Originální název

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

Typ

článek v časopise ve Web of Science, Jimp

Jazyk

angličtina

Originální abstrakt

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.

Klíčová slova

Epoxy resin, dielectric spectroscopye, poxy nanocomposite, and polymer

Autoři

AL SOUD, A.; DARADKEH, S.; KNÁPEK, A.; HOLCMAN, V.; SOBOLA, D.

Vydáno

1. 12. 2023

Nakladatel

IOP Publishing

Místo

England

ISSN

1402-4896

Periodikum

PHYSICA SCRIPTA

Ročník

98

Číslo

1

Stát

Švédské království

Strany od

1

Strany do

14

Strany počet

14

URL

https://iopscience.iop.org/article/10.1088/1402-4896/ad070c

Plný text v Digitální knihovně

http://hdl.handle.net/11012/244176

BibTex

@article{BUT185093,
  author="Ammar {AL Soud} and Samer {Daradkeh} and Alexandr {Knápek} and Vladimír {Holcman} and Dinara {Sobola}",
  title="Electrical characteristics of different concentration of silica nanoparticles embedded in epoxy resin",
  journal="PHYSICA SCRIPTA",
  year="2023",
  volume="98",
  number="1",
  pages="1--14",
  doi="10.1088/1402-4896/ad070c",
  issn="1402-4896",
  url="https://iopscience.iop.org/article/10.1088/1402-4896/ad070c"
}