▎ 摘　　要

NOVELTY - Preparing graphene film rolled material comprises (i) ultrasonically soaking graphene oxide in water, and stirring, (ii) coating the graphene oxide solution onto the polyimide film, and drying continuously to obtain rolled graphene film substrate from which polyimide film is removed, (iii) subjecting rolled graphene film substrate to high temperature carbonization in a sintering furnace to obtain graphene film foamed material, (iv) graphitizing graphene film foamed material in a high temperature furnace, and cooling graphene film substrate, and (v) taking out the graphene film substrate product obtained in step (iv), and calendering graphene film substrate product with calendar to obtain graphene film rolled material. USE - The method is useful for preparing graphene film rolled material. ADVANTAGE - The material: has simple preparation method, excellent shielding effect and strong radiating performance. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for graphene film rolled material is obtained by above method.