▎ 摘　　要

NOVELTY - A fastener includes a body, an intermediary layer coated on the main body, and an outer coating layer coated on the intermediary layer. The interlayer includes a siloxane, and an adhesive copolymerized with an organic resin. The overcoat layer includes a plurality of metal powder particles, a plurality of nano-zinc particles, and a plurality of graphene particles uniformly dispersed, and a method for making the metal powder particles, the nano-zinc particles, and the graphene particles Mixed binder. The intermediary layer can improve the reliability of the outer coating layer attached to the body, so the metal powder particles through the outer coating layer can be used as a sacrificial anode, and the dense structure formed by the nano-zinc particles can be combined with graphite The characteristics of stable ethylenization, ability to fill structural voids, and easy compounding with other organic substances have excellent anti-corrosion performance on the body.