▎ 摘　　要

The effect of filler material concentration on Electromagnetic Interference (EMI) Shielding Effectiveness (SE) of polymeric nanocomposites has been studied. Computational model was developed for shielding performance of graphene polymeric nanocomposites. Nanocomposites were fabricated using High Pressure Resin Transfer Molding (HPRTM) method, latter EM shielding properties were measured experimentally using waveguide technique. It is observed that SE increases with increase in wt% of graphene. From the results, it is perceived that nanocomposite with 2.5 wt% of graphene shows good shielding with the range of 27 dB to 30 dB, doubled in comparison to pure polymeric composite. Numerical simulations of various graphene nanocomposites have been carried out for the prediction of SE while incorporating EM properties of corresponding nanocomposite as input. Excellent agreement between numerical simulations and experimental results has been observed. The developed numerical model predicts SE values of graphene nanocomposites in 30 dB range which certainly falls in the X-band.