The present invention provides a millimeter wave radar bracket absorbing material and its preparation method, which relates to the field of millimeter wave radar absorbing materials; The material includes the following components by weight: 55-80 parts of polypropylene; 10-18 parts of absorbing agent; 5-15 parts of glass fiber; 3-10 parts toughening agent; 1-5 parts of compatibilizer; Lubricant 0.2-1.5 parts; 0.1-0.5 parts of antioxidant; During preparation, polypropylene, toughening agent, compatibilizer, lubricant, antioxidant, and coupling treated absorber are thoroughly mixed in proportion and added from the main feeding port of the twin-screw extruder. Glass fiber is added from the side feeding port of the twin-screw extruder, and after melting and co extrusion, cooling and granulation, millimeter wave radar bracket absorbing material is obtained; The material produced is directly injection molded to obtain a millimeter wave radar bracket, which is compounded with various carbon materials to meet the bracket's absorption performance of electromagnetic waves, reducing the reflection interference of radar signals while improving the material's processability.
Country Code: CN
Application Number: CN202311739431.5
