Segregated Conductive Polymer Composite with Fe3O4-Decorated Graphite Nanoparticles for Microwave Shielding

Graphite nanoplatelets (GNPs)—the segregated ultra-high molecular weight polyethylene (UHMWPE)-based composites with hybrid filler—decorated with Fe3O4 were developed. Using X-ray diffraction and scanning electron microscopy, it was shown that the decorated component has the shape of separate granul...

Full description

Saved in:
Bibliographic Details
Published inMaterials Vol. 17; no. 12; p. 2808
Main Authors Ludmila Yu Matzui, Syvolozhskyi, Oleksii A, Vovchenko, Ludmila L, Yakovenko, Olena S, Len, Tetyana A, Ischenko, Olena V, Vakaliuk, Anna V, Oliynyk, Victor V, Zagorodnii, Volodymyr V, Naumenko, Antonina, Cojocari, Maria, Fedorov, Georgy, Kuzhir, Polina
Format Journal Article
LanguageEnglish
Published Basel MDPI AG 08.06.2024
MDPI
Subjects
a segregated structure of conductive filler
composites with hybrid filler
Conducting polymers
Crystal defects
Decoration
Efficiency
Electromagnetic interference
electromagnetic interference shielding materials
Electromagnetic shielding
Fillers
Frequency ranges
Functional groups
Graphene
Graphite
Hot pressing
Investigations
Iron oxides
Microwave absorption
Nanoparticles
Percolation
Polyethylene
Polymer matrix composites
Polymers
Radiation
Temperature
Ultra high molecular weight polyethylene
Online AccessGet full text

Cover

More Information
Summary:Graphite nanoplatelets (GNPs)—the segregated ultra-high molecular weight polyethylene (UHMWPE)-based composites with hybrid filler—decorated with Fe3O4 were developed. Using X-ray diffraction and scanning electron microscopy, it was shown that the decorated component has the shape of separate granules, or their clusters were distributed evenly over the GNPs surface. The individual Fe3O4 nanoparticles are predominantly rounded, with diameters of approximately 20–60 nm. The use of GNPs/Fe3O4 as a filler leads to significant decreases in the percolation limit φc, 0.97 vol% vs. 0.56 vol% for GNPs/UHMWPE- and (GNPs/Fe3O4)/UHMWPE segregated composite material (SCM), respectively. Modification of the GNP surface with Fe3O4 leads to an essential improvement in the electromagnetic interference shielding due to enhanced microwave absorption in the 26–37 GHz frequency range in its turn by abundant surface functional groups and lattice defects of GNPs/Fe3O4 nanoparticles.
Bibliography:ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
ISSN:1996-1944
1996-1944
DOI:10.3390/ma17122808