▎ 摘　　要

NOVELTY - Preparing layered polyurethane electromagnetic shielding composite foam comprises, (i) loading metal on surface of solid glass microspheres to obtain conductive microspheres, (ii) preparing conductive microspheres and magnetic particles-containing layered polyurethane composite, and (iii) adding layered polyurethane composite material prepared in step (ii) into foaming gas, saturating at 0-300 ℃ with the pressure of 0.5-50 MPa for 5 minutes to 24 hours, then releasing the pressure to normal pressure at a rate of 0.1-30 MPa/s and cooling down to room temperature to obtain final product. USE - The method is useful for preparing layered polyurethane electromagnetic shielding composite foam. ADVANTAGE - The method: improves the electromagnetic shielding performance while reducing the amount of filler added to the composite material. The layered polyurethane electromagnetic shielding composite foam has absorption properties at low filler content. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for layered polyurethane electromagnetic shielding composite foam prepared by above method.