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'の電磁波吸収性能を満たし、レーダー信号の反射干渉を低減しつつ材料'の加工性を向上させる。
国コード：CN
出願番号：CN202311739431.5
