Polypropylene nanocomposite filled with spinel ferrite NiFe 2 O 4 nanoparticles and in-situ thermally-reduced graphene oxide for electromagnetic interference shielding application

Abstract

Herein, we presented electromagnetic interference shielding characteristics of NiFe2O4 nanoparticles-in-situ thermally-reduced graphene oxide (RGO)-polypropylene nanocomposites with the variation of reduced graphene oxide content. The structural, morphological, magnetic, and electromagnetic parameters and mechanical characteristics of fabricated nanocomposites were investigated and studied in detail. The controllable composition of NiFe 2 O 4 -RGO-Polypropylene nanocomposites exhibited electromagnetic interference (EMI) shielding effectiveness (SE) with a value of 29.4 dB at a thickness of 2 mm. The enhanced EMI shielding properties of nanocomposites with the increase of RGO content could be assigned to enhanced attenuation ability, high conductivity, dipole and interfacial polarization, eddy current loss, and natural resonance. The fabricated lightweight NiFe 2 O 4 -RGO-Polypropylene nanocomposites have potential as a high performance electromagnetic interference shielding nanocomposite. © 2019 by the authors. Licensee MDPI, Basel, Switzerland.