Polyolefin graft maleic anhydride compatibilizer was prepared via melt reaction in a twin-screw extruder.When polypropylene as matrix,the influences of the amount of MAH,DCP,St,PE on the grafting rate were investigated,and the formula were optimized by orthogonal experiment.The self-made compatibilizer was used in GF/PP composite,and the mechanical properties and section morphology were tested and analyzed.FTIR analysis showed that MAH,St was successfully grafted onto PP/PE.The addition of St increased the grafting rate obviously.The order of influence of the four factors on the grafting rate was St＞PE＞MAH＞DCP.The optimum formula were as below:MAH dosage 5％,DCP dosage 5％,St dosage 5％,PE dosage 10％.Self made compatibilizer had a good compatibilization effect on GF/PP,made the mechanical properties of GF/PP significantly improved.
维普
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