Regular Article

High efficiency microwave shielding films based on carbon fibre and ITO/Ag/Fe₂O₃ hybrid polymer composites

¹ Materials, Energy Systems, Renewable Energies and Energy Management Laboratory (LMSEERGE), University of Laghouat B.P. 37G, Laghouat 03000, Algeria
² Laboratory of Analysis, Control of Energy Systems and Electrical Networks, University of Laghouat B.P. 37G, Laghouat 03000, Algeria

^* e-mail: t.merizgui@lagh-univ.dz

Received: 6 June 2022
Received in final form: 13 July 2022
Accepted: 14 September 2022
Published online: 9 November 2022

Abstract

Hybrid polymer composites represent a new class of materials that have unique combination of magnetic, electrical, dielectric, and mechanical properties, which are applicable for funnel of electromagnetic (EM) noises. In this study, we present a process for scalable composition of Silane grafted epoxy composites through adding carbon fibre (CF)/iron (III) oxide (Fe₂O₃)/indium tin oxide (ITO) nano particles and a designed grid of appropriately sized metal streaks along E-glass fiber (eGF), and report on the electromagnetic interference shielding effectiveness (EMI SE) with mechanical properties of composites. The examined ribbon shield detect a good total EMI SE of SET (∼78 dB) at a different thickness of 2–2.5 and 3 mm in the ‘E, F, I, and J’ band frequency. In an analogous fashion, the reinforcement grid approach relies on the periodic sizing to manage the equilibrium between incoming wave from outside world and shielding efficiency of proposed composites. We provide a solution by creating a new concept of a hybrid shield, whose SE can be varied in situ depending on the EM context due to the used high filler content, whose SE can dynamically and institute be modified via the concept of reinforcement.