Electrical conductivity and electromagnetic interference shielding effectiveness of elastomer composites: Comparative study with various filler systems

Flexible CNT-MXene-CNT Film with Low Surface Conductance for High- and Low-Power Electromagnetic Absorption Protection

“…Until now, mainstream EMI shielding materials include intrinsic conductive polymers (polypyrrole, polyaniline, and polythiophene), carbon-based materials (CNTs, graphene, , rGO, − and carbon black), metallic nanomaterials (copper nanofilm, silver nanowires, , and silver nanoparticles), and two-dimensional (2D) transition metal carbides and/or nitrides (MXene). , However, whatever the compositions are, compact shielding materials with higher electromagnetic loss are usually accompanied by higher electrical conductivity. , The inherent high electrical conductivity leads to intense electromagnetic reflection, especially for millimeter and submillimeter waves, at the surface of the material. Once the reflected waves return to the environment, intense secondary radiation is generated, which causes more serious EM pollution and environmental problems.…”

“…28,29 However, whatever the compositions are, compact shielding materials with higher electromagnetic loss are usually accompanied by higher electrical conductivity. 28,30 The inherent high electrical conductivity leads to intense electromagnetic reflection, especially for millimeter and submillimeter waves, at the surface of the material. Once the reflected waves return to the environment, intense secondary radiation is generated, which causes more serious EM pollution and environmental problems.…”