▎ 摘　　要

NOVELTY - Polyolefin flame retardant composite material comprises 0.1-5 pts. wt. phosphorus doped graphene, 0.1-25 pts. wt. organic montmorillonite and 100 pts. wt. polyolefin. USE - Used as polyolefin flame retardant composite material. ADVANTAGE - The composite material: has no-toxicity; and is environmentally friendly. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for preparing polyolefin flame retardant composite material comprising dissolving phosphorus-doped graphene, organic montmorillonite and polyolefin mixed dispersion in organic solvent, then mixing the mixed dispersion, casting and drying to obtain polyolefin flame retardant composite material.