▎ 摘　　要

NOVELTY - Metal-loaded carbon/polymer-based electromagnetic shielding material is prepared by modifying cobalt ferrite nano-powder with molybdenum disulfide to obtain cobalt ferrite dopped molybdenum disulfide nano-powder, loading on graphene microchips, impregnating with polyurethane, melting and loading on polylactide, performing vacuum infiltration and filling polybutylene adipate terephthalate to obtain the product, where the shielding material comprises 8-10 wt.% cobalt ferrite dopped molybdenum disulfide nano-powder, 12-15 wt.% graphene microchips, 5-8 wt.% polyurethane, 8-10 wt.% polybutylene adipate terephthalate, and remaining of polylactide. USE - As metal-loaded carbon/polymer-based electromagnetic shielding material. ADVANTAGE - The electromagnetic shielding material fills the cell defects of the carbon/polymer-based electromagnetic shielding material by loading the metal on the material, improves the electromagnetic shielding efficiency of the electromagnetic shielding material, and improves the mechanical properties of materials through polyurethane impregnation and polybutylene adipate terephthalate penetration. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for method for preparing the metal-supported carbon/polymer-based electromagnetic shielding material, involving (i) cobalt ferrite nano-powder by mixing 0.9 mmol iron acetylacetonate and 0.45 mmol cobalt acetylacetonate in 32 ml oleic acid amine, magnetically stirring at room temperature for 1 hour to obtain a homogeneous mixture, transferring reddish homogeneous mixture to a 100 ml stainless steel autoclave lined with PTFE, heating in an oven at 200 degrees C for 24 hours, leaving still the autoclave to naturally cool to room temperature, and collecting the final product with a centrifuge at a speed of 5000 rpm for 10 minutes, (ii) preparing cobalt ferrite dopped molybdenum disulfide nano-powder/conductive nanoparticles by dissolving the cobalt ferrite nanoparticles in ethanol, ultrasonically dispersing, adding graphene microchips, stirring at room temperature for 50-60 minutes, adding ammonium molybdate tetrahydrate and thiourea, transferring to a stainless steel autoclave lined with PTFE, heating at 220 degrees C in oven, and heat-preserving for 24 hours, naturally cooling, filtering, washing and drying, (iii) preparing cobalt ferrite dopped molybdenum disulfide/polyurethane-conductive nanoparticles by cutting polyurethane foam into dimethylformamide/N-methyl-2-pyrrolidone solution, adding cobalt ferrite dopped molybdenum disulfide nano-powder/conductive nanoparticle, ultrasonically immersing for 3-4 hours, filtering, air-dry for 72 hours, and vacuum-drying at 50 degrees C for 4 hours, (iv) preparing cobalt ferrite dopped molybdenum disulfide/polyurethane-conductive nanoparticle/polylactide by putting the dried cobalt ferrite/ polyurethane-conductive nanoparticles and dried polylactide into an internal mixer, mixing for 10-20 minutes and discharging, and (v) preparing cobalt ferrite dopped molybdenum disulfide/polyurethane-conductive nanoparticle/polylactide/polybutylene adipate terephthalate by adding the obtained composite material to polybutylene adipate terephthalate, infiltrating under vacuum condition for 15-20 minutes and solidifying for 3-4 hours to obtain the product.