Modern electronic devices need effective shielding from external Electromagnetic Interference (EMI) to function correctly. The (EM) waves emerging communication systems and medical must be isolated safeguard humans exposure. mechanics of EMI as well several characterization methods are discussed in this paper. Existing trends practices designing, fabrication use polymer matrix composites for ap...

Abstract In this study, we have produced a lightweight foam composite material by simple freeze-drying method, which is composed of carboxylated multi-walled carbon nanotubes (MWCNTs), mesoporous hollow microspheres (MCHMs), water-based polyurethane (WPU), and polyvinyl alcohol (PVA). MCHMs were prepared novel facile method. We found that the electromagnetic shielding performance composites can...

Biochar and biochar-based composites are multi-functional materials with a wide range of environmental other applications. A new emerging application is in the field modern communication systems as significant electromagnetic shielding effectiveness. In this study, biochar was prepared from olive tree prunings which subsequently used at various dosages to prepare composite samples carbon black ...