In this work, various tunable sized spinel ferrite MnFe2O4 nanoparticles (namely MF20, MF40, MF60 and MF80) with reduced graphene oxide (RGO) were embedded in a polypropylene (PP) matrix. The particle size and structural feature of magnetic filler MnFe2O4 nanoparticles were controlled by sonochemical synthesis time 20 min, 40 min, 60 min and 80 min. As a result, the electromagnetic interference shielding characteristics of developed nanocomposites MF20-RGO-PP, MF40-RGO-PP, MF60-RGO-PP and MF80-RGO-PP were also controlled by tuning of magnetic/dielectric loss. The maximum value of total shielding effectiveness (SET) was 71.3 dB for the MF80-RGO-PP nanocomposite sample with a thickness of 0.5 mm in the frequency range (8.2-12.4 GHz). This lightweight, flexible and thin nanocomposite sheet based on the appropriate size of MnFe2O4 nanoparticles with reduced graphene oxide demonstrates a high-performance advanced nanocomposite for cutting-edge electromagnetic interference shielding application.
In this work, various tunable sized spinel ferrite MnFe2O4nanoparticles (namely MF20, MF40, MF60 and MF80) with reduced n class="Chemical">graphene oxide (RGO) were embedded in a polypropylene (PP) matrix. The particle size and structural feature of magnetic filler MnFe2O4 nanoparticles were controlled by sonochemical synthesis time 20 min, 40 min, 60 min and 80 min. As a result, the electromagnetic interference shielding characteristics of developed nanocomposites MF20-RGO-PP, MF40-RGO-PP, MF60-RGO-PP and MF80-RGO-PP were also controlled by tuning of magnetic/dielectric loss. The maximum value of total shielding effectiveness (SET) was 71.3 dB for the MF80-RGO-PP nanocomposite sample with a thickness of 0.5 mm in the frequency range (8.2-12.4 GHz). This lightweight, flexible and thin nanocomposite sheet based on the appropriate size of MnFe2O4 nanoparticles with reduced graphene oxide demonstrates a high-performance advanced nanocomposite for cutting-edge electromagnetic interference shielding application.
Authors: Raghvendra Singh Yadav; Petra Pötschke; Jürgen Pionteck; Beate Krause; Ivo Kuřitka; Jarmila Vilčáková; David Škoda; Pavel Urbánek; Michal Machovský; Milan Masař; Michal Urbánek Journal: Int J Mol Sci Date: 2022-02-26 Impact factor: 5.923
Authors: Shaimaa A Habib; Samia A Saafan; Talaat M Meaz; Moustafa A Darwish; Di Zhou; Mayeen U Khandaker; Mohammad A Islam; Hamidreza Mohafez; Alex V Trukhanov; Sergei V Trukhanov; Maha K Omar Journal: Nanomaterials (Basel) Date: 2022-03-11 Impact factor: 5.076