▎ 摘　　要

NOVELTY - Graphene flame-retardant floor comprises 40-60 pts. wt. polypropylene, 10-40 pts. wt. composite flame retardant, 0.1-2 pts. wt. graphene, 20-60 pts. wt. degradation agent, 1-10 pts. wt. toughening agent, 1-10 pts. wt. compatibilizer, 10-50 pts. wt. calcium carbonate, 0.1-0.5 pt. wt. antioxidant and 0.1-0.5 pt. wt. lubricant. USE - As graphene flame-retardant floor. ADVANTAGE - The graphene flame-retardant floor has good degradability and flame retardant property, high oxygen index up to ≥ 29%, light in weight, and has good dimensional stability, and the preparation method is simple, has high productive capacity, and meets the demand, the raw materials are degradable and will be completely decomposed after 8 months on the ground with a temperature of 32-38℃ and a relative humidity of 90-100%, thus solves the problem of recycling, and provides better protection to the environment DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method for preparing the graphene flame-retardant floor, comprising grinding polypropylene to obtain polypropylene powder, mixing the polypropylene powder, graphene, toughening agent and compatibilizer to obtain the first composite, mixing the composite flame retardant, calcium carbonate, antioxidant and lubricant for the second time to obtain second composite, simultaneously feeding the first composite and the second composite into a plate extruder for co-extrusion to obtain the graphene flame-retardant floor.