▎ 摘　　要

In this study, polyester/cotton fabric was used as the base cloth and PU2450 polyurethane as the matrix to prepare monolayer coated composites with different content of RGO (reduced graphene oxide), and the dielectric constant, reflection loss, surface resistance, shielding effectiveness and tensile strength of the composites were tested. The results showed that when the content of RGO-1 varied from 15% to 60% and the thickness was 0.6 mm, the electromagnetic properties of single-layer coated composites could be improved by properly increasing the content of RGO-1.