Preparation method for graphene-oxide-based ultraviolet-curable aqueous polyurethane anti-electromagnetic shielding coating

The invention belongs to the technical field of synthesis of high polymer materials, and relates to a preparation method for a graphene-oxide-based ultraviolet-curable aqueous polyurethane anti-electromagnetic shielding coating initiated by different photoinitiators. The method comprises the following steps of dissolving graphene oxide in N,N-dimethyl formamide, adding and regulating the types of the photoinitiators, and modifying aqueous polyurethane-acrylate emulsion, thereby preparing the graphene-oxide-based ultraviolet-curable aqueous polyurethane anti-electromagnetic shielding coating initiated by different photoinitiators. According to the preparation method, a preparation process is simple; inorganic particles can be uniformly dispersed, and good interface bonding layers can be formed on the surfaces of the inorganic particles, so that the polyurethane-acrylate coating has high mechanical properties, and has the characteristics of strength and toughness improvement of a nanometer material; in addition, due to the addition of the graphene oxide, the coating is endowed with electrical conductivity, and the heat resistance, mechanical properties, film transparency and the like of the coating are improved; an ultraviolet curing technology is combined with a conductive coating, so that the coating has the advantages of less environmental pollution, low energy consumption and the like.