▎ 摘　　要

NOVELTY - Low-temperature-resistant and high-modulus electromagnetic shielding material, comprises 50-75 wt.% polycarbonate, 10-25 wt.% polycarbonate-polysiloxane copolymer, 3-8 wt.% toughening agent, 1-5 wt.% polyketone, 10-20 wt.% carbon-based conductive filler and 0.5-2 wt.% other additives. USE - The electromagnetic shielding material is useful in the field of functional polymer materials. ADVANTAGE - The electromagnetic shielding material has low specific gravity, excellent mechanical strength and low temperature resistance. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for preparing low-temperature-resistant high-modulus electromagnetic shielding material, comprising mixing polycarbonate, polycarbonate-polysiloxane copolymer, toughening agent, polyketone, carbon-based conductive filler and other additives uniformly according to the metering ratio, melting, blending, extruding and granulating by double-screw extruder to obtain final product.