▎ 摘 要
NOVELTY - Composite material comprises molecule polymer matrix uniformly dispersed in three-dimensional graphene in a mass ratio of 500:1-50. USE - Composite material. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for preparing the composite material, comprising firstly preparing polymer macromolecular micro-sphere coating graphene particles on upper surface of the polymer macromolecular micro-sphere, pressing, casting and molding.