The present invention belongs to the field of magnetic materials, and specifically relates to an injection molded flexible magnetic material and its preparation method.
The injection molded flexible magnetic material includes the following raw materials: samarium iron nitride magnetic powder, thermoplastic polyurethane elastomer powder, organosilicon thermoplastic elastomer, coupling agent, lubricant, polypropylene powder, and toughening agent.
The preparation method comprises the following steps: mixing samarium iron nitrogen magnetic powder, thermoplastic polyurethane elastomer powder, organosilicon thermoplastic elastomer, coupling agent, lubricant, polypropylene rubber powder, and toughening agent to obtain a premix; The premix is extruded through a twin-screw extruder and then enters a series of single screw extruders, where it is sequentially extruded, cooled, pulled, and pelletized to obtain injection molded flexible magnetic material.
The magnetic properties of the injection molded flexible magnetic material described in the present invention are high and significantly superior to traditional flexible magnetic materials; And the preparation method can produce flexible magnets with complex structures and ensure no material waste, greatly improving the overall benefits.
Country Code: CN
Application Number: CN202311710513.7
