The invention relates to the technical field of degradable plastics, in particular to a flame-retardant biodegradable plastic and a preparation method and application thereof. The flame-retardant biodegradable plastic is prepared by melt mixing of polylactic acid, poly(butylene adipate-co-terephthalate), plasticized starch, inorganic filler, anti-dripping agent, lubricant, antioxidant and chain extender. Through specific process steps, feeding sequence and processing temperatures of each zone of the twin-screw extruder during melt processing, the invention obtains a flame-retardant biodegradable plastic with good compatibility, good temperature resistance, good toughness and excellent flame retardancy by melt mixing the raw materials in the specific formula. Furthermore, flame-retardant biodegradable injection-molded products prepared from the flame-retardant biodegradable plastic prepared by the invention have good flame retardancy and environmental protection, can effectively reduce the risk of fire, and provide users with a healthier and more comfortable living environment.
Area Code: CN
Application Number: CN202411562326.3
