High-weather-resistance light-color halogen-free flame-retardant PC/ASA alloy material and preparation method thereof

The invention discloses a high-weather-resistance light-color halogen-free flame-retardant PC/ASA alloy material. The material is prepared from the following components by weight: 600-800 parts of PC;50-250 parts of ASA; 50-150 parts of a halogen-free flame retardant; 0-50 parts of a toughening agent; 50-200 parts of titanium dioxide; 4-8 parts of a flame-retardant anti-dripping agent; 1-10 partsof an antioxidant; 1-15 parts of a release agent; and 1-20 parts of anti-ultraviolet agent. The mass ratio of the titanium dioxide in the raw materials of the high-weather-resistance light-color halogen-free flame-retardant PC/ASA alloy material is 4.7-17%. The product surface of the high-weather-resistance light-color halogen-free flame-retardant PC/ASA alloy material has a good color retentionrate, the color difference is less than 4 after illumination for 1000 hours, and due to the increase of the content of titanium dioxide, the performance of the material and the appearance of the product can be effectively prote