The present invention discloses a novel biobased polycarbonate material for lightweight automobiles, which is prepared by the following method: biobased polycarbonate pellets, polyolefin elastomers, and mineral fibers are melted, mixed, and extruded in a twin-screw extruder in a mass ratio of 5:1: (1-2), and the extruded cut material is injected into an injection molding machine to obtain biobased polycarbonate sheets. Then, the biobased polycarbonate sheets are placed into a supercritical fluid compression molding and foaming machine, and CO2 is injected into the supercritical fluid compression molding and foaming machine to stabilize the polymer gas system. After that, the control switch is quickly opened to release the CO2 pressure in the cavity, and the sample is immediately placed in water for shaping, thus obtaining the novel lightweight biobased polycarbonate material for automobiles; The process is simple and the production cost is lower compared to existing technologies. Applying it to car windows can further reduce the cost of car windows and reduce the overall quality of the vehicle body.
Country Code: CN
Application Number: CN202311580840.5
