Can PVC film make foam tableware?

PVC film can be used as foam tableware, namely disposable foamed plastic tableware, which refers to the use of polystyrene resin as raw material, which is heated and melted at high temperature in the extruder and then added with foaming agent (butane) to extrude the sheet. , After rewinding the sheet, place it in a ventilated and humid environment for health preservation, and then conduct secondary heating and blister molding to make various tableware such as fast food boxes, soup bowls, instant noodle bowls, fresh trays, etc.