▎ 摘　　要

NOVELTY - A metal oxide fiber- graphene composite gas gel comprises graphene aerogel matrix and doped silane coupling agent modified metal oxide fibers. The metal oxide fibers are at least one of zirconia fibers, mullite fibers, alumina fibers, silica fibers, and glass fibers. The silane coupling agent is γ-aminopropyltriethoxysilane, γ-glycidyl etheroxypropyltrimethoxysilane, γ-methacryloxypropyltrimethoxysilane and N-β-(aminoethyl)-γ-aminopropylmethyldimethoxysilane. USE - Metal oxide fiber-graphene composite gas gel used for microwave absorption and heat insulation flameproof material (claimed). ADVANTAGE - The metal oxide fiber-graphene composite gas gel at normal temperature, extreme high temperature and extreme low temperature has excellent rebound resilience, structure stability, heat insulation and fire-proof performance and microwave absorption performance. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for: preparation method of metal oxide fibre -graphene composite gas gel; A microwave absorption and heat insulation flameproof material.