▎ 摘　　要

NOVELTY - A super-hybrid aerogel electromagnetic interference material is prepared by (1) dispersing graphene oxide solution in precursor solution having phenolic compound, weakly basic catalyst, and water to obtain precursor mixed solution containing graphene oxide, adding aldehyde substance, and uniformly mixing to obtain phenolic sol containing graphene oxide; (2) gelling and aging graphene-containing phenolic sol to obtain wet gel, immersing wet gel in magnetic salt solution to obtain magnetic salt wet gel, and sequentially subjecting to solvent replacement step and drying step to obtain super-hybrid phenolic aerogel; (3) subjecting super-hybrid phenolic aerogel to high temperature cracking to prepare super-hybrid carbon aerogel; (4) high temperature cracking polyimide foam after heat treatment at 100-300 degrees C for 1-12 hours to obtain cracked polyimide foam; (5) and mixing and pulverizing cracked polyimide foam and super-hybrid carbon aerogel in a mass ratio of 1:(0.1-10). USE - Preparation of super-hybrid aerogel electromagnetic interference material (claimed). ADVANTAGE - The super-hybrid aerogel electromagnetic interference material has low density and hierarchical structure, and can generate long-term effective interference effects on electromagnetic signals of multiple bands at the same time.