Thermal regeneration agent for high-dosage utilization of waste asphalt mixture and preparation method of thermal regeneration agent

The invention particularly relates to a waste asphalt mixture high-dosage utilization thermal regeneration agent and a preparation method thereof, and the thermal regeneration agent comprises the following raw materials by weight: 20-50 parts of naphtha, 10-20 parts of a polymer modifier, 1-5 parts of a fiber additive, 10-15 parts of an antioxidant, 3-10 parts of an ultraviolet light absorber, 1-3 parts of a tackifier, and 3-5 parts of an auxiliary agent. The preparation method sequentially comprises the following steps: preparing raw materials, mixing and dissolving, preparing a naphtha prepolymer, modifying the naphtha prepolymer and enhancing the ageing resistance. Various physical properties of the thermal recycling agent provided by the invention meet standard requirements, the thermal recycling agent is safe and environment-friendly, various pavement properties of the asphalt mixture regenerated and modified by using the thermal recycling agent meet standard requirements, various properties of the regen