Dielectric and electromagnetic interference shielding properties of carbon black nanoparticles reinforced PVA/PEG blend nanocomposite films
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F49777513%3A23640%2F20%3A43958994" target="_blank" >RIV/49777513:23640/20:43958994 - isvavai.cz</a>
Result on the web
<a href="https://iopscience.iop.org/article/10.1088/2053-1591/ab9853/pdf" target="_blank" >https://iopscience.iop.org/article/10.1088/2053-1591/ab9853/pdf</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1088/2053-1591/ab9853" target="_blank" >10.1088/2053-1591/ab9853</a>
Alternative languages
Result language
angličtina
Original language name
Dielectric and electromagnetic interference shielding properties of carbon black nanoparticles reinforced PVA/PEG blend nanocomposite films
Original language description
Polyvinyl alcohol (PVA)/polyethylene glycol (PEG) blend nanocomposite films reinforced with various loadings of carbon black nanoparticles(CBNPs)were synthesized via a solution casting approach. The structural properties of PVA/PEG/CBNPs nanocomposites were investigated using Fourier-transform infrared (FTIR)spectroscopy, indicating the strong interaction of CBNPs with the polymer blend. The thermogravimetric analysis(TGA) and differential scanning calorimetry (DSC) results respectively confirmed the enhanced thermal stability and the variation in the melting temperature with the addition of CBNPs in polymer blend . The dielectric measurements of nanocomposite films were carried out over a frequency range from 50 Hz–20 MHz at a varied temperature range from 40 °C–150 °C using impedance analyzer . The maximum dielectric constant for neat PVA was observed to be about 21.4 at 50 Hz and 150 °C. For PVA/PEG/CBNPs nanocomposites having higher loading of CBNPs(25 wt%) the maximum value of dielectric constant was found to be ε = 375.1 at 50 Hz, 150 °C. The dielectric properties increased with the addition of CBNPs which validates a significant control on percolation threshold attributing to the well-dispersed CBNPs in the polymer blend. The electromagnetic interference (EMI)shielding effectiveness(SE)was improved from 0.1 dB to 10.6 dB with the addition of CBNPs in the PVA/PEG blend. The improved EMI SE and dielectric performance of these nanocomposites suggest CBNPs as excellent nanofillers for the development of flexible, lightweight and low-cost material for electronic applications.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
21001 - Nano-materials (production and properties)
Result continuities
Project
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Continuities
S - Specificky vyzkum na vysokych skolach
Others
Publication year
2020
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Materials Research Express
ISSN
2053-1591
e-ISSN
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Volume of the periodical
7
Issue of the periodical within the volume
6
Country of publishing house
GB - UNITED KINGDOM
Number of pages
12
Pages from-to
"NESTRÁNKOVÁNO"
UT code for WoS article
000546819200001
EID of the result in the Scopus database
2-s2.0-85087675574