The invention relates to a fluorine-free flame-retardant PC resin composition and a preparation method and application thereof. The resin composition comprises the following components in parts by weight: 85-92 parts of PC resin, 5-8 parts of phosphazene flame retardant, 2-4 parts of toughening agent, 2-4 parts of fumed silica, 1-3 parts of multi-walled carbon nanotubes (CNT), 0.5-1.5 parts of organosilicon flame retardant, and 0.5-1.5 parts of auxiliary agent. After fully stirring and mixing the above raw materials in a high-speed mixer, the materials are melted, compounded, homogenized, drawn, cooled and pelletized under the conveying, shearing and mixing of screws in a twin-screw extruder to obtain the fluorine-free flame-retardant PC resin composition. The resin composition not only has stable flame retardancy but also excellent mechanical properties, and is very suitable for black parts in OA (office equipment), new energy batteries, electrical and electronic, home appliances and other fields.
Area Code: CN
Application Number: CN202411589438.8
