▎ 摘　　要

NOVELTY - A polyurethane shoe material composition comprises 90-100 pts. wt. material (A) and 80-90 pts. wt. material (B). The material (A) is obtained by uniformly dispersing graphene, wood fiber and polyethylene glycol in a high-speed mixer, then adding thermoplastic polybutylene succinate, mixing, feeding the mixture into a twin-screw extruder, extruding to obtain a clustered graphene dispersion, then crushing to form a flocculant, adding polyester polyol, grinding, dispersing the graphene dispersion in the polyester polyol as colloidal particles to form polyester polyol containing rubber particles, then adding chain extender, catalyst, foaming agent and foam leveling agent and uniformly dispersing. The material (B) is obtained by adding graphene, nano zinc oxide and diisocyanate to a ball mill, grinding and dispersing to get a fine slurry, then putting into a reactor, stirring, adding organic bismuth and polyether polyol, stirring and reacting, discharging, sealing and packaging. USE - Polyurethane shoe material composition. ADVANTAGE - The polyurethane shoe material composition has excellent flexibility, strength and mechanical performance, and can be prepared by a simple method. DETAILED DESCRIPTION - A polyurethane shoe material composition comprises 90-100 pts. wt. material (A) and 80-90 pts. wt. material (B). The material (A) is obtained by uniformly dispersing 3-5 pts. wt. graphene, 5-10 pts. wt. wood fiber and 1-5 pts. wt. polyethylene glycol in a high-speed mixer, then adding 20-30 pts. wt. thermoplastic polybutylene succinate, mixing, feeding the mixture into a twin-screw extruder, extruding at 100-120 degrees C to obtain a clustered graphene dispersion, then crushing to form a flocculant, adding polyester polyol, grinding in a ball mill at 70-80 degrees C for 10-15 minutes, dispersing the graphene dispersion in the polyester polyol as colloidal particles to form polyester polyol containing rubber particles, then adding chain extender, catalyst, foaming agent and foam leveling agent and uniformly dispersing. The material (B) is obtained by adding graphene, nano zinc oxide and diisocyanate to a ball mill, grinding and dispersing to get a fine slurry, then putting into a reactor, controlling the temperature of the reactor at 80-90 degrees C, stirring at 50-100 rpm, simultaneously adding organic bismuth and polyether polyol, stirring and reacting for 20-30 minutes, discharging until the temperature is reduced to room temperature, sealing and packaging. An INDEPENDENT CLAIM is included for preparation of the polyurethane shoe material composition, which involves the steps as per above se.