PC/ABS modified alloy with excellent mechanical property and preparation method thereof

The invention relates to the technical field of high polymer material modification processing, and discloses a PC/ABS modified alloy with excellent mechanical properties and a preparation method thereof, the alloy material comprises the following components by weight: 30-90 parts of polycarbonate, 10-70 parts of continuous bulk ABS, 2-10 parts of a flexibilizer, 2-5 parts of a compatilizer, and 0.5-5 parts of a processing aid, and 0.5-5 parts by weight of a flow modifier. The alloy is excellent in mechanical property, the mechanical strength and tensile strength of the alloy are enhanced, the defects of the styrene-maleic anhydride copolymer can be counteracted through the synergistic effect of the styrene-maleic anhydride copolymer and the grafted copolymer flexibilizer, the alloy surface is smoother due to addition of a small amount of the compatilizer C and polybutylene terephthalate, and the mechanical strength and tensile strength of the alloy are improved. The product does not become crisp after being c