Dielectric and electromagnetic interference shielding performance of graphene nanoplatelets and copper oxide nanoparticles reinforced polyvinylidenefluoride/poly(3,4-ethylenedioxythiophene)-block-poly (ethylene glycol) blend nanocomposites

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F49777513%3A23640%2F21%3A43963065" target="_blank" >RIV/49777513:23640/21:43963065 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1016/j.synthmet.2021.116923" target="_blank" >https://doi.org/10.1016/j.synthmet.2021.116923</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.synthmet.2021.116923" target="_blank" >10.1016/j.synthmet.2021.116923</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Dielectric and electromagnetic interference shielding performance of graphene nanoplatelets and copper oxide nanoparticles reinforced polyvinylidenefluoride/poly(3,4-ethylenedioxythiophene)-block-poly (ethylene glycol) blend nanocomposites

Popis výsledku v původním jazyce

The fabrication of nanocomposites consisting of graphene nanoplatelet (GNP) and copper oxide nanoparticles (CuO) reinforced polyvinylidenefluoride (PVDF)/poly(3,4-ethylenedioxythiophene)-block-poly (ethylene glycol) (PEDOT-block-PEG) blend were done using solution casting technique. The structures and thermal properties of PVDF/PEDOT-block-PEG/GNP/CuO nanocomposites were investigated using Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), thermogravimetric analyzer (TGA) and differential scanning calorimetry (DSC). The morphological analysis done by Scanning electron microscope (SEM) has confirmed the uniform distribution of GNP and CuO throughout the polymer matrix. The dielectric properties and electromagnetic interference shielding efficiency (EMI SE) of produced nanocomposites were also investigated. The maximum values at the low-frequency region (100 Hz and 150 ◦C), for dielectric constant and dielectric loss obtained, are 34.0 and 9.2, respectively. The maximum EMI SE was observed to be 17 dB for nanocomposites containing 2/20 wt% of GNP/CuO in 12–18 GHz (Ku-band) region and the shielding mechanism was found to be absorptiondominated. The conductive network formation by GNP and CuO in the PVDF/PEDOT-block-PEG blend improved the SE which further emphasizes the potential use of these nanocomposites as an effective EMI shielding material.

Název v anglickém jazyce

Dielectric and electromagnetic interference shielding performance of graphene nanoplatelets and copper oxide nanoparticles reinforced polyvinylidenefluoride/poly(3,4-ethylenedioxythiophene)-block-poly (ethylene glycol) blend nanocomposites

Popis výsledku anglicky

The fabrication of nanocomposites consisting of graphene nanoplatelet (GNP) and copper oxide nanoparticles (CuO) reinforced polyvinylidenefluoride (PVDF)/poly(3,4-ethylenedioxythiophene)-block-poly (ethylene glycol) (PEDOT-block-PEG) blend were done using solution casting technique. The structures and thermal properties of PVDF/PEDOT-block-PEG/GNP/CuO nanocomposites were investigated using Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), thermogravimetric analyzer (TGA) and differential scanning calorimetry (DSC). The morphological analysis done by Scanning electron microscope (SEM) has confirmed the uniform distribution of GNP and CuO throughout the polymer matrix. The dielectric properties and electromagnetic interference shielding efficiency (EMI SE) of produced nanocomposites were also investigated. The maximum values at the low-frequency region (100 Hz and 150 ◦C), for dielectric constant and dielectric loss obtained, are 34.0 and 9.2, respectively. The maximum EMI SE was observed to be 17 dB for nanocomposites containing 2/20 wt% of GNP/CuO in 12–18 GHz (Ku-band) region and the shielding mechanism was found to be absorptiondominated. The conductive network formation by GNP and CuO in the PVDF/PEDOT-block-PEG blend improved the SE which further emphasizes the potential use of these nanocomposites as an effective EMI shielding material.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

21001 - Nano-materials (production and properties)

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2021

Kód důvěrnosti údajů

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

Název periodika

SYNTHETIC METALS

ISSN

0379-6779

e-ISSN

—

Svazek periodika

282

Číslo periodika v rámci svazku

DEC 2021

Stát vydavatele periodika

CH - Švýcarská konfederace

Počet stran výsledku

11

Strana od-do

—

Kód UT WoS článku

000711443200004

EID výsledku v databázi Scopus

2-s2.0-85116920384