▎ 摘　　要

NOVELTY - Preparing carbonized towel gourd pulp/nano nickel/reduced graphene oxide electromagnetic shielding material involves adding natural towel gourd pulp into the mixed aqueous solution of sodium hydroxide and hydrogen peroxide, removing the lignin of the towel gourd pulp, drying, soaking the modified towel gourd pulp after drying into the nickel acetate solution, graphene oxide solution, freezing and drying to obtain the compound, carbonizing and reducing the composite under the condition of high temperature nitrogen, obtaining the carbonized towel gourd pulp/nano nickel/reduced graphene oxide composite material, where the solvent of the nickel acetate solution is N'-N-dimethylformamide solution (DMF), the dosage ratio of the nickel acetate, modified towel gourd pulp and DMF is 0.3-0.9:0.5:50 ml, and the solvent of the graphene oxide solution is mixed solvent of ethanol and water. USE - The method is used for preparing carbonized towel gourd pulp/nano nickel/reduced graphene oxide electromagnetic shielding material. ADVANTAGE - The method enables preparation of carbonized towel gourd pulp/nano nickel/reducing graphene oxide electromagnetic shielding material with excellent conductivity and shielding performance. DETAILED DESCRIPTION - Preparing carbonized towel gourd pulp/nano nickel/reduced graphene oxide electromagnetic shielding material involves adding natural towel gourd pulp into the mixed aqueous solution of sodium hydroxide and hydrogen peroxide, removing the lignin of the towel gourd pulp, drying, soaking the modified towel gourd pulp after drying into the nickel acetate solution, graphene oxide solution, freezing and drying to obtain the compound, carbonizing and reducing the composite under the condition of high temperature nitrogen, obtaining the carbonized towel gourd pulp/nano nickel/reduced graphene oxide composite material, where the solvent of the nickel acetate solution is N'-N-dimethylformamide solution (DMF), the dosage ratio of the nickel acetate, modified towel gourd pulp and DMF is 0.3-0.9:0.5:50 ml, the solvent of the graphene oxide solution is mixed solvent of ethanol and water, the dosage ratio of the graphene oxide, modified towel gourd pulp and ethanol and water mixed solvent is 50 mg:500 mg:100 ml, carbonizing and reducing the composite under the condition of nitrogen, the carbonization reduction temperature is 600-800 degrees C.