Preparation method of absorption type flexible transparent electromagnetic shielding film and product

The invention relates to a preparation method of an absorption type flexible transparent electromagnetic shielding film and a product, and belongs to the technical field of electromagnetic shielding.The preparation method comprises the following steps of sequentially coating and preparing the flexible transparent polymer film layer I, the ferromagnetic nanowire network structure layer and a flexible transparent polymer film layer II on a cleaned substrate, and applying a magnetic field to enable the ferromagnetic nanowires to be distributed to form an ordered network structure when the ferromagnetic nanowire network structure layer is coated and prepared. The shielding film prepared by the method is high in shielding effectiveness, high in light transmittance, good in flexibility and excellent in electromagnetic wave absorbing capacity, the secondary electromagnetic radiation pollution caused by the shielding mainly based on a reflection mechanism can be effectively avoided, the shielding film has good engine