Electromagnetic interference shielding response of multiwall carbon nanotube/polypropylene nanocomposites prepared via melt processing technique

The present study tells about dc conductivity, mechanical, and electromagnetic interference (EMI) shielding response of multiwall carbon nanotubes (MWCNT) reinforced polypropylene nanocomposites prepared via melt processing technique using a twin‐screw extruder. The tensile strength of the nanocomposites shows improvement by 27% compared to the sample with no filler added (PCN0). The incorporation of MWCNT leads to a boost in electrical conductivity from 2.07 × 10 −10 to 4.21 × 10 −6 S/cm. The maximum EMI shielding effectiveness obtained at 5 wt% of MWCNT load valued −21.07 in the X‐band (8.2‐12.4 GHz) frequency range, measured using the vector network analyzer. The results concluded that the prepared nanocomposite is suitable to be used as a mechanically durable shielding material to fulfill the industrial needs of shielding.