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YADAV, R. JAMATIA, T. KUŘITKA, I. VILČÁKOVÁ, J. ŠKODA, D. URBÁNEK, P. MACHOVSKÝ, M. MASAŘ, M. URBÁNEK, M. KALINA, L. HAVLICA, J.
Originální název
Superparamagnetic ZnFe2O4 Nanoparticles-Reduced Graphene Oxide-Polyurethane Resin Based Nanocomposites for Electromagnetic Interference Shielding Application
Typ
článek v časopise ve Web of Science, Jimp
Jazyk
angličtina
Originální abstrakt
Superparamagnetic ZnFe2O4 spinel ferrite nanoparticles were prepared by the sonochemical synthesis method at different ultra-sonication times of 25 min (ZS25), 50 min (ZS50), and 100 min (ZS100). The structural properties of ZnFe2O4 spinel ferrite nanoparticles were controlled via sonochemical synthesis time. The average crystallite size increases from 3.0 nm to 4.0 nm with a rise of sonication time from 25 min to 100 min. The change of physical properties of ZnFe2O4 nanoparticles with the increase of sonication time was observed. The prepared ZnFe2O4 nanoparticles show superparamagnetic behavior. The prepared ZnFe2O4 nanoparticles (ZS25, ZS50, and ZS100) and reduced graphene oxide (RGO) were embedded in a polyurethane resin (PUR) matrix as a shield against electromagnetic pollution. The ultra-sonication method has been used for the preparation of nanocomposites. The total shielding effectiveness (SET) value for the prepared nanocomposites was studied at a thickness of 1 mm in the range of 8.2–12.4 GHz. The high attenuation constant (α) value of the prepared ZS100-RGO-PUR nanocomposite as compared with other samples recommended high absorption of electromagnetic waves. The existence of electric-magnetic nanofillers in the resin matrix delivered the inclusive acts of magnetic loss, dielectric loss, appropriate attenuation constant, and effective impedance matching. The synergistic effect of ZnFe2O4 and RGO in the PUR matrix led to high interfacial polarization and, consequently, significant absorption of the electromagnetic waves. The outcomes and methods also assure an inventive and competent approach to develop lightweight and flexible polyurethane resin matrix-based nanocomposites, consisting of superparamagnetic zinc ferrite nanoparticles and reduced graphene oxide as a shield against electromagnetic pollution.
Klíčová slova
sonochemical synthesis; spinel ferrite; nanoparticles; nanocomposites; electromagnetic interference shielding
Autoři
YADAV, R.; JAMATIA, T.; KUŘITKA, I.; VILČÁKOVÁ, J.; ŠKODA, D.; URBÁNEK, P.; MACHOVSKÝ, M.; MASAŘ, M.; URBÁNEK, M.; KALINA, L.; HAVLICA, J.
Vydáno
25. 4. 2021
Nakladatel
MDPI
ISSN
2079-4991
Periodikum
Nanomaterials
Ročník
11
Číslo
5
Stát
Švýcarská konfederace
Strany od
1
Strany do
25
Strany počet
URL
https://www.mdpi.com/2079-4991/11/5/1112
Plný text v Digitální knihovně
http://hdl.handle.net/11012/202973
BibTex
@article{BUT171346, author="Raghvendra Singh {Yadav} and {Anju} and Thaiskang {Jamatia} and Ivo {Kuřitka} and Jarmila {Vilčáková} and David {Škoda} and Pavel {Urbánek} and Michal {Machovský} and Milan {Masař} and Michal {Urbánek} and Lukáš {Kalina} and Jaromír {Havlica}", title="Superparamagnetic ZnFe2O4 Nanoparticles-Reduced Graphene Oxide-Polyurethane Resin Based Nanocomposites for Electromagnetic Interference Shielding Application", journal="Nanomaterials", year="2021", volume="11", number="5", pages="1--25", doi="10.3390/nano11051112", issn="2079-4991", url="https://www.mdpi.com/2079-4991/11/5/1112" }