High-heat-resistance polycarbonate (PC)/acrylonitrile styrene acrylate copolymer (ASA) alloy material and preparation method thereof

The invention discloses a high-heat-resistance polycarbonate (PC)/acrylonitrile styrene acrylate copolymer (ASA) alloy material and a preparation method thereof. The stress cracking performance and the processing performance of a PC can be improved through the mixing of the PC and an ASA resin, and the chemical resistance and the weatherability of the PC are improved. Along with the PC content increase, the impact intensity and the heat deformation temperature of the alloy material are obviously improved. In order to improve the heat resistance of the PC/ASA alloy, alpha-vinyltoluene-acrylonitrile copolymers (alpha-SAN) are used for replacing the styrene-acrylonitrile copolymer (SAN) phase in the alloy, the heat deformation temperature can be improved to about 140 DEG C, and the heat resistance, the high intensity and the toughness of the PC as well as the weatherability, the chemical resistance and the processing performance of the ASA are integrated in the PC/ASA. Therefore, the PC/ASA alloy can meet the market variation requirements through being used as novel good-performance engineering plastics and has considerable application prospects, and the PC/ASA alloy can be widely used for the fields of electric appliance engineering materials, automobile engineering materials, building plastic products and the like.