▎ 摘　　要

NOVELTY - Preparing biomass-derived cellulose aerogel material comprises (1) configuring graphene oxide and biomass-derived cellulose into a mixed suspension, (2) adding epichlorohydrin to mixed suspension, performing solidification, swelling and freeze-drying to obtain graphene oxide-cellulose aerogel, (3) grafting flame-retardant high polymer on the graphene oxide-cellulose aerogel to obtain a flame-resistant modified aerogel, and (4) carrying out in-situ polymerization of polyamic acid in flame-resistant modified aerogel to obtain a biomass-derived cellulose aerogel material. USE - The method is useful for preparing biomass-derived cellulose aerogel material is useful for fireproof door in building, marine structure and ship. ADVANTAGE - The material exhibits good mechanical and fireproof performance. The ammonium polyphosphate can catalyze the carbon forming rate in the decomposition process gel material decomposition. The flame-retardant polymer is grafting flame retardant high polymer on the graphene oxide-cellulose aerogel to form high-flame retardant material, and in situ the aggregate acid to improve flame-resistance and mechanical performance of the gel.