▎ 摘　　要

NOVELTY - Flexible electromagnetic shielding fabric comprises fabric layer, and electromagnetic shielding layer is fixed on the upper surface of the fabric layer through layer-by-layer self-assembly technology. The electromagnetic shielding layer is graphene oxide/iron oxide hybrid nanoparticle layer. USE - Flexible electromagnetic shielding fabric. ADVANTAGE - The flexible electromagnetic shielding fabric is suitable for large-scale industrial production, has better electromagnetic shielding performance, simple method, easy operation, no special requirements for equipment, controllable cost and good electromagnetic shielding and flexibility. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method for preparing flexible electromagnetic shielding fabric, which involve: (A) immersing fabric in sodium carbonate aqueous solution for pretreatment, and then washing and drying, preparing graphene oxide, using modified hummer method to prepare graphene oxide using graphene, preparing graphene oxide/iron oxide hybrid particle powder, dissolving graphene oxide obtained in deionized water to obtain graphene oxide solution, using ethylenediamine to modify iron oxide nanoparticles to obtain ethylenediamine modified iron oxide nanoparticles, subjecting graphene oxide solution to ultrasonic oscillation dispersion treatment, and then stirring and reacting with ethylenediamine modified iron oxide nanoparticles, filtering, cleaning and drying to obtain graphene oxide/iron oxide hybrid particle powder, preparing graphene oxide/iron oxide hybrid particle solution; (B) dissolving graphene oxide/iron oxide hybrid particle powder obtained in deionized water and ultrasonically oscillating to obtain graphene oxide/iron oxide hybrid nanoparticle solution, preparing chitin solution, weighing certain amount of chitin powder and dissolving in acetic acid solution to obtain chitin solution, immersing fabric in the chitin solution, immersing fabric pretreated in chitin solution obtained, taking out fabric for washing and air dry; (C) immersing fabric in the graphene oxide/iron oxide hybrid nanoparticle solution; (D) immersing fabric dried in graphene oxide/iron oxide hybrid nanoparticle solution, and then taking out fabric for washing and drying; (E) immersing the fabric in chitin solution, immersing fabric dried in chitin solution, taking out fabric, washing, and drying, layer-by-layer self-assembly processing of graphene oxide/iron oxide hybrid nanoparticles on fabric; and (F) repeating to prepare flexible electromagnetic shielding fabric.