The invention belongs to the field of high-molecular nylon materials, and discloses a high-strength flame-retardant nylon material and its preparation method. The material comprises: 50～80 parts of modified PA4, 15～25 parts of modified glass fiber, 5～15 parts of initiator and 1～3 parts of antioxidant. The preparation steps are as follows: S1. mixing modified PA4, initiator and antioxidant in a high-speed mixer to obtain a primary mixture; S2. adding modified glass fiber into the primary mixture, mixing and drying to obtain a secondary mixture; S3. granulating the dried secondary mixture by a twin-screw extruder and drying to prepare high-strength flame-retardant nylon pellets; S4. injecting the pellets into standard test bars via an injection molding machine for performance testing. By modifying PA4, the flame retardancy of the material is enhanced, the release of toxic gases during combustion is reduced, and the environmental performance is improved.
Area Code: CN
Application Number: CN202411465637.8
