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Preparation of graphene nanoplate added zinc-rich epoxy coatings for enhanced sacrificial anode-based corrosion protection

机译:石墨烯纳米板添加富锌环氧涂层的制备,以增强基于阳极的牺牲腐蚀防护

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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.
机译:在这项工作中,制备了添加石墨烯纳米板(GNP)的富锌环氧(ZRE)复合涂层。进行了电化学测量,表面表征和电腐蚀试验,以研究GNP增强的基于牺牲阳极的锌(Zn)牺牲阳极的腐蚀防护。分散的GNP用作连接锌颗粒的电子通道,从而在涂层基体中形成均匀的Zn-GNP-Zn网络,从而增强了基于牺牲阳极的Zn牺牲腐蚀防护。 GNP在改善涂层性能中的作用取决于涂层中锌的含量。所制备的GNP-ZRE复合涂层还具有增强的抗分层性。

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