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

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081731%3A_____%2F23%3A00579568" target="_blank" >RIV/68081731:_____/23:00579568 - isvavai.cz</a>

Alternative codes found

RIV/00216305:26620/23:PU149330

Result on the web

<a href="https://iopscience.iop.org/article/10.1088/1402-4896/ad070c" target="_blank" >https://iopscience.iop.org/article/10.1088/1402-4896/ad070c</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1088/1402-4896/ad070c" target="_blank" >10.1088/1402-4896/ad070c</a>

Result language

angličtina

Original language name

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

Original language description

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.

Czech name

—

Czech description

—

Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

21001 - Nano-materials (production and properties)

Project

—

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2023

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Physica Scripta

ISSN

0031-8949

e-ISSN

1402-4896

Volume of the periodical

98

Issue of the periodical within the volume

12

Country of publishing house

US - UNITED STATES

Number of pages

14

Pages from-to

125520

UT code for WoS article

001108124700001

EID of the result in the Scopus database

2-s2.0-85179176725