Super-strong flame-retardant fireproof electromagnetic shielding film and preparation method thereof

The invention belongs to the technical field of electromagnetic shielding composite materials, and particularly relates to a super-strong flame-retardant fireproof electromagnetic shielding film and a preparation method thereof.The super-strong flame-retardant fireproof electromagnetic shielding film comprises a PBO film, a PVA film and an Mxene film, the thickness of the film is 10-20 microns, the PVA film is arranged between the PBO film and the Mxene film, the Mxene film is arranged on the inner layer, the PVA film is arranged on the outer layer, and the Mxene film is arranged on the inner layer. The composite film is prepared by adopting a layer-by-layer deposition method of a vacuum-assisted forming process; the method has the advantages of simplicity and easiness in operation, mild reaction conditions and the like, and the ultra-strong flame-retardant fireproof electromagnetic shielding film prepared by the method is ultra-thin, has excellent electromagnetic shielding effectiveness and also has good mec