▎ 摘　　要

NOVELTY - Preparation of solid-liquid phase-changing thermoplastic polyurethane electrolyte involves stirring diol monomer and adipic acid, vacuumizing, raising temperature to 130-190degrees Celsius, reacting until the acid value of the material is less than 30 mg potassium hydroxide/g, raising the temperature to 205-215degrees Celsius, adding tetrabutyl titanate, stirring, heating to 235-245degrees Celsius, reducing the vacuum degree of the reaction vessel until the output value of the diol monomer reaches 16-17%, cooling to 95-105degrees Celsius and removing vacuum, discharging to obtain polymer diol, mixing polyethylene glycol, polypropylene glycol, polypropylene glycol with trifunctional groups, the polymer diols, chain extender, isocyanate, lithium salt, graphene, flame retardant, antioxidant, yellowing-resistant agent and catalyst to reaction vessel, heating to 75-85degrees Celsius, stirring, placing in oven at 95-105degrees Celsius, cooling to room temperature to obtain bulk material, and adding bulk material to extruder for extrusion granulation. USE - Preparation of solid-liquid phase-changing thermoplastic polyurethane electrolyte. ADVANTAGE - The thermoplastic polyurethane electrolyte has excellent solid-liquid phase changing property with change of temperature, which is solid at room temperature and in liquid state when using, and high safety and excellent conductivity. DETAILED DESCRIPTION - Preparation of solid-liquid phase-changing thermoplastic polyurethane electrolyte involves (1) adding diol monomer to reaction vessel, heating to 55-65degrees Celsius, (2) adding adipic acid, stirring at 75-85degrees Celsius, (3) then stirring at 100-110degrees Celsius, (4) vacuumizing, raising temperature to 130-190degrees Celsius, reacting until the acid value of the material is less than 30 mg potassium hydroxide/g, raising the temperature to 205-215degrees Celsius, (5) adding tetrabutyl titanate, stirring at 223-227degrees Celsius until the acid value of the material is less than 1 mg potassium hydroxide/g, heating to 235-245degrees Celsius, (6) reducing the vacuum degree of the reaction vessel until the output value of the diol monomer reaches 16-17%, (7) cooling to 95-105degrees Celsius and removing vacuum, (8) discharging to obtain polymer diol, (9) mixing polyethylene glycol, polypropylene glycol, polypropylene glycol with trifunctional groups, the polymer diols, chain extender, isocyanate, lithium salt, graphene, flame retardant, antioxidant, yellowing-resistant agent and catalyst to reaction vessel, heating to 75-85degrees Celsius, stirring, (10) placing in oven at 95-105degrees Celsius, (11) cooling to room temperature to obtain bulk material, and (12) adding bulk material to extruder for extrusion granulation.