▎ 摘　　要

NOVELTY - Composite material comprises: either reflector layer (R1) comprising polymer matrix, allotrope of carbon and sputtered metal; or the reflector layer and an absorber layer (A1) comprising polymer matrix, nanosized magnetic material and allotrope of carbon. USE - The composite material is useful for providing electromagnetic shielding effect and manufacturing the article, where the article comprises computer monitor, mobile phone component or laptop screen panel (all claimed). ADVANTAGE - The composite material: provides the article that has electromagnetic radiation shielding capacity of-50 dB to -100 dB over entire X band and Ku-band having frequency of 8-18 GHz; and is lightweight, economical and thin and has high and improved electromagnetic shielding performance, good flexibility and good durability with outstanding longevity. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are also included for: preparing the composite material, comprising either (a) preparing the reflector layer (R1) by mixing the polymer matrix, the allotrope of carbon and the sputtered metal to obtain the composite material, or (b) preparing the reflector layer (R1) as above and preparing the absorber layer (A1) by mixing the polymer matrix, the nanosized magnetic material and the allotrope of carbon, followed by combining with the reflector layer (R1) to obtain the composite material; hielding of electromagnetic radiation, comprising contacting the electromagnetic radiation with the composite material; and an article comprising the composite material.