Superparamagnetic ZnFe2O4 nanoparticles-reduced graphene oxide-polyurethane resin based nanocomposites for electromagnetic interference shielding application

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F70883521%3A28610%2F21%3A63543798" target="_blank" >RIV/70883521:28610/21:63543798 - isvavai.cz</a>

Alternative codes found

RIV/00216305:26310/21:PU140698

Result on the web

<a href="https://www.mdpi.com/2079-4991/11/5/1112" target="_blank" >https://www.mdpi.com/2079-4991/11/5/1112</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3390/nano11051112" target="_blank" >10.3390/nano11051112</a>

Result language

angličtina

Original language name

Superparamagnetic ZnFe2O4 nanoparticles-reduced graphene oxide-polyurethane resin based nanocomposites for electromagnetic interference shielding application

Original language description

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.

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

<a href="/en/project/GA19-23647S" target="_blank" >GA19-23647S: Investigation of Correlation Among Cation Distribution, Particle Size and Physical Properties of Intelligent Spinel Ferrite Nanomaterials</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2021

Confidentiality

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

Name of the periodical

Nanomaterials

ISSN

2079-4991

e-ISSN

—

Volume of the periodical

11

Issue of the periodical within the volume

5

Country of publishing house

CH - SWITZERLAND

Number of pages

25

Pages from-to

—

UT code for WoS article

000657017900001

EID of the result in the Scopus database

2-s2.0-85104630400