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 NiFe2O4-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 NiFe2O4-RGO-Polypropylene nanocomposites have potential as a high performance electromagnetic interference shielding nanocomposite.
Highlights
Nowadays, the advancement in electromagnetic interference (EMI) sensitive electronic devices, telecommunications, and radar systems has enforced the development of the outstanding electromagnetic interference shielding materials to be utilized to protect sensitive work places, in environmental protection appliances, and as anti-electromagnetic interference coatings [1]
In the obtained X-ray diffraction pattern of NiFe2O4-RGO-Polypropylene nanocomposites, the diffraction peaks related to the restacking of in-situ reduced graphene oxide could not be detected, revealing that the polypropylene elastomer nanocomposites efficiently prevented the restacking of in-situ reduced graphene oxide [35]
We fabricated polypropylene nanocomposites filled with spinel ferrite NiFe2O4 nanoparticles and in-situ reduced graphene oxide (RGO)
Summary
The advancement in electromagnetic interference (EMI) sensitive electronic devices, telecommunications, and radar systems has enforced the development of the outstanding electromagnetic interference shielding materials to be utilized to protect sensitive work places, in environmental protection appliances, and as anti-electromagnetic interference coatings [1]. Electromagnetic interference has several unwanted radiations that could create malfunction or noise in electronic appliances and be detrimental to the human body [2]. To settle these issues, development of advanced shielding materials is in progress to achieve the requirements in the current industries. Polypropylene has been received as a potential polymer matrix for magnetic and dielectric nanoparticle fillers to fabricate advanced nanocomposites for electromagnetic interference shielding applications. Ameli A. et al [11] reported the polypropylene/carbon fiber composite foams are outstanding for electromagnetic interference shielding applications. Hong M.-S. et al [12] reported the carbon fibers in polypropylene matrix composites and their electromagnetic interference shielding characteristics
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