STUDY OF ABSORPTION IN CARBON NANOTUBE COMPOSITES FROM 1HZ TO 40GHZ

Absorption performances in High Density Polyethylene (HDPE) and polycarbonate (PC) polymer matrices containing various loads of carbon nanotubes were analysed. It depends on electrical conductivity, dielectric constant and thickness of the polymer composites. These parameters can be easily controlled. Significant absorption, which can reach between 60 and 90%, hence occurs at particular combinations of these last parameters (in a frequency range from 1Hz to GHz). These new results are really useful in various applications, and are considered in low scale systems as a major technological solution against electromagnetic interferences