In order to respond to the national"double carbon"strategy,this paper greenly prepared an ethylene propylene rubber powder-based polypropylene thermoplastic elastomer with high strength and aging resistance,optimized the ratio of ethylene propylene rubber powder and polypropylene,determined the variety and dosage of compatibilizers,and optimized the chemical grafting process between ethylene propylene rubber powder and polypropylene.The experimental results showed that using environmentally friendly compatible agent 2,4-di-tert-butylperoxyisopropylbenzene(BIBP)together with sulfur S8 could make the rubber powder-based polypropylene thermoplastic elastomer have excellent mechanical and aging resistance.The tensile strength reached 20MPa,and the elongation at break was more than 800％.This material could be used in the preparation of negative carbon for aging resistant auto parts,pier buffers,various rubber hoses and plates as well as other products.
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