Anti-electromagnetic interference graphene shielding film and preparation method thereof

The invention discloses an anti-electromagnetic interference graphene shielding film and a preparation method thereof. The preparation method of the graphene shielding film comprises the following steps: step S1, taking polyethylene glycol terephthalate as a base film, and carrying out corona treatment on the base film; a pretreated base membrane is obtained; s2, spin-coating the surface of the pretreated base membrane with a magnetic graphene solution, and performing first treatment; spin-coating a silver nanowire solution, and carrying out secondary treatment; spin-coating a graphene oxide solution, and treating for the third time; repeating'first treatment-third treatment 'for 2-4 times; soaking in an acetone solution; washing and drying; and obtaining the graphene shielding film. The preparation method has the beneficial effects that through layer-by-layer coating of the magnetic graphene solution, the silver nanowire solution and the graphene oxide solution, the dispersion effect is enhanced, and the ele