Novel automobile part made of polypropylene/polyester polymer composite material

The invention discloses a novel automobile part made of a polypropylene/polyester polymer composite material. The novel automobile part comprises the following preparation raw materials: polyester resin, polypropylene, a compatibilizer, nanometer calcium carbonate, nanometer ceramic powder, an ethylene-octene copolymer, montmorillonite, thiodipropionic acid (dodecanol) diester, a plasticizer and aflame retardant. A preparation method for the novel automobile part comprises the following steps: S1, uniformly mixing the dried polyester resin and the compatibilizer in proportion, carrying out extruding and granulating; S2, uniformly mixing granules obtained in the step S1, the polypropylene, the ethylene-octene copolymer and the thiodipropionic acid (dodecanol) diester in proportion througha double-screw extruder, preparing in-situ fiber-formed composite fibers by using non-woven equipment, and preparing a non-woven fabric from the prepared composite fibers; S3, feeding the non-woven fabric obtained in the step