Thermoplastic composite material, and preparation method and application thereof

The invention belongs to the field of polymer composite materials, and discloses a thermoplastic composite material, and a preparation method and an application thereof. The composite material is composed of the components of, by weight: 1-99 parts of a prepreg and 1-99 parts of a thermoplastic composition or thermoplastic resin. The preparation method comprises the steps that: the 1-99 parts of thermoplastic composition or thermoplastic resin is added into a feeding hopper of an injection molding machine, and is mixed with the 1-99 parts of prepreg already in an injection mold; and injection molding is carried out. The invention also discloses an application of the thermoplastic composite material in car bumpers, car door inner panels, car bumper beams, cars toe-boards, car hood, car rear lift door, building templates, biogas digesters, train sidings, train wall panels, or train roof panels. The composite material provided by the invention has the advantages of smooth outer surface, high gloss, good appearance, excellent mechanical performance, high strength, and good impact resistance.