Preparation of Cu-PPy electromagnetic shielding fabric

The invention discloses preparation of a Cu-PPy electromagnetic shielding fabric, and belongs to the technical field of electromagnetic shielding fabrics. The method comprises the following steps: immersing a fabric into an absolute ethyl alcohol and acetone solution, and then sequentially immersing the fabric into a coarsening solution, a sensitizing solution and an activating solution for reaction respectively; placing the fabric in the plating solution for reaction to obtain a copper-plated fabric; and preparing a pyrrole monomer sulfuric acid acidic solution, then selecting a saturated dry mercury electrode as a reference electrode, a platinum sheet electrode as an auxiliary electrode and the copper-plated fabric as a working electrode, electroplating, and drying to obtain the Cu-PPy electromagnetic shielding fabric. The prepared coated fabric is light, thin, good in flexibility and simple in experiment condition requirement. The electromagnetic shielding fabric is provided with two shielding layers, elec