Waste rubber low-temperature efficient compound regeneration activating agent

The invention discloses a waste rubber low-temperature efficient compound regeneration activating agent. A main regeneration activating agent is N-tert-butylbenzothiazole-2-sulphenamide (NS), a subsidiary regeneration activating agent is stearic acid (SA), and a best weight proportion is 1:1. The compound regeneration activating agent has the advantages of being good in low-temperature coordination regeneration effect. A regeneration temperature is 110-130 DEG C, the time is 30 min, and Mooney viscosity (35-75) suitable for processing can be fast obtained. NS/SA and regeneration rubber thereofat the low temperature accord with the European Union REACH regulation. The mechanical property of the rubbers can be reserved after regeneration at the low temperature. The tensile strength can reach 15.24 Mpa, elongation at break can reach 415.6%, the obtained regeneration rubber is good in Mooney viscosity stability, Mooney rebound after 30 days is 0.5-10, and the regeneration rubber is in a powder state; the processi