▎ 摘　　要

NOVELTY - Preparing high modulus, highly elastic graphene foam material involves fixing the compressed graphene oxide foam material with a clamp, and burning the flame completely. The fixture is removed, and heat-treated the burned product for more than 0.1 hours in an inert atmosphere or vacuum environment to obtain a high-modulus, high-elastic graphene foam material. The compressed graphene oxide foam material is a compression product of the graphene oxide foam material when the compression ratio is controlled to be 50-95%. USE - Method for preparing high modulus, highly elastic graphene foam material for stretchable conductor, smart sensor or aerospace field (claimed). ADVANTAGE - The method regulates the three-dimensional structure and density of the graphene oxide foam by adjusting the degree of compression, and then carries out flame combustion in a limited space with a clamp, and the densely packed continuous graphene oxide wall expands rapidly when heated, and further foams in the limited cell space, forming a dense small-size cell structure, which can endow it with high elastic modulus and high elasticity. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a high modulus, highly elastic graphene foam material, which includes an elastic grid with a pore wall thickness of 10 nanometers or less and a pore size between 10 nanometers and 50 μm, and the elastic modulus of the high-modulus, high-elastic graphene foam material is 0.1-20 megapascal, and the reversible compressive strain is 10-90%.