Preparation of modified high-polar polypropylene material by grafting maleic anhydride

By using polypropylene as mother feedstock and adding certain amount of maleic anhydride, cografting monomer and initiator, the modified polypropylene material is prepared through reaction for 1-3 min at 170-220 deg.c and pelletizing in pelletizing machine. The product of the high-polar polypropylene material has high polarity, improved surface finishing property, excellent mechanical property oforiginal polypropylene and easy machining.