▎ 摘　　要

NOVELTY - Composite material comprises three-dimensional continuous network skeleton of graphene/carbon nano-tube/lanthanide metal oxide, uniformly loading the lanthanide metal oxide on the carbon nano-tube to obtain hybrid particles, the hybrid particles are interwoven to form three-dimensional continuous porous material with graphite, the composite material comprises 100 pts. wt. silicon rubber, 0.1-1 pts. wt. graphite, 0.01-0.5 pts. wt. carbon nanometer tube, and 0.01-0.5 pts. wt. lanthanide metal oxide. USE - The material is useful for electromagnetic shielding (claimed). ADVANTAGE - The material: achieves high electromagnetic shielding effectiveness based on electromagnetic wave absorption at low filler loading; and has more than 60dB electromagnetic shielding in X-band. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for preparing the material comprising constructing three-dimensional continuous graphene/carbon nano-tube/lanthanide metal oxide network skeleton, backfilling the silicone rubber and vulcanizing stereotypes.