Polypropylene foaming building template as well as preparation method and application thereof

The invention relates to the technical field of plastic building templates, in particular to a polypropylene foamed building template as well as a preparation method and application thereof. The polypropylene foaming building template comprises a core layer, an upper surface layer and a lower surface layer, the upper surface layer and the lower surface layer are respectively arranged on the upper surface and the lower surface of the core layer, the core layer is a polypropylene supercritical foaming plate, and the upper surface layer and the lower surface layer are respectively and independently made of continuous fiber reinforced thermoplastic compound prepreg; wherein the polypropylene supercritical foam board is prepared by clamping the core layer, which is prepared by extruding and foaming polypropylene and supercritical gas, between the upper surface layer and the lower surface layer, and sequentially carrying out rolling, hot melting, compounding and cooling molding. According to the polypropylene foami