Study on Process of Solution Grafting Modified Ethylene-Butene Copolymer
Solution grafting modified polyolefin has the advantages of uniform grafting and less monomer residue,and has advantages in some high-end application fields.Maleic anhydride was used as the grafting monomer,and the effects of monomer dosage,reaction temperature,reaction time,catalyst dosage,solvent dosage and other conditions on grafting rate were investigated.The results showed that when the reaction temperature was 125 ℃,the reaction time was 2 h,the mass of cyclohexanone was 3 times the mass of ethylene-butylene copolymer,the amount of maleic anhydride was 25％of the amount of ethylene-butylene copolymer,and the amount of BPO was 4％of the amount of ethylene-butene copolymer,the grafting rate could reach 1.02％.
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