Abstract: POE-g-MAH was prepared via melting graft process, the grafting was confirmed by infrared spectrum. The graft degree firstly increased with increasing loadings of MAH and DCP and leveled off. Waste tire rubber powder (WTRP) was treated with stearic acid, and blended with POE-g-MAH. The rehological properties and re-processability of WTRP/POE-g-MAH were analyzed.

Key words: waste tire rubber powder (WTRP), Maleic anhydride(MAH), Melting grafting, Pulverization, Thermoplastic elastomer(TPE), Ethylene-1-octene copolymer(POE)