▎ 摘　　要

In this work, graphene nanoplate (GNP) added zinc-rich epoxy (ZRE) composite coatings were prepared. Electrochemical measurements, surface characterization and galvanic corrosion testing were conducted to investigate the GNP-enhanced zinc (Zn) sacrificial anode-based corrosion protection of the coatings. The dispersed GNP serves as electronic channels to connect Zn particles to form a homogeneous Zn-GNP-Zn network in the coating matrix, resulting in an enhanced Zn sacrificial anode-based corrosion protection. The role of GNP in improved coating performance depends on Zn content in the coating. The prepared GNP-ZRE composite coatings also possess an enhanced delamination resistance.