The present invention relates to a low-temperature resistant and hydrolysis resistant modified polycarbonate composition and a preparation method thereof, characterized in that the polycarbonate composition is prepared by mixing the following components in parts by weight: 70–80 parts of polycarbonate, 18–28 parts of polysiloxane-polycarbonate random copolymer, 0.1–0.5 parts of antioxidant, 0.5–1 part of flame retardant, 0.4–1 part of hydrolysis resistant agent. The specific preparation method is: placing polycarbonate in bin 1; adding polysiloxane-polycarbonate random copolymer, antioxidant, flame retardant and hydrolysis resistant agent into a high-speed mixer in sequence, and placing the uniformly mixed material in bin 2; feeding materials from bin 1 and bin 2 into a twin-screw extruder at a constant speed, and performing melt extrusion, cooling, blow-drying and pelletizing to obtain a uniform polycarbonate composition with excellent mechanical properties at low temperature and favorable hydrolysis resistance, which can be widely used in various places with high requirements for materials in low-temperature and hydrolysis-resistant environments.
Area Code: CN
Application Number: CN202411266407.9
