Abstract In the present study, the synthetic strategy of “electrostatic self-assembly” was utilized to prepare Zn3(PO4)2/GO composite material with effective collaborative reinforcement of anti-corrosion, which may combine the anti-corrosive advantages of the two materials for further improvement in the anti-corrosive properties of the composite materials. The morphology, structure, and composition of the prepared composites were studied using SEM, XRD and XPS, respectively. Furthermore, corrosion resistance of the pure epoxy coating, Zn3(PO4)2 (ZP)/epoxy, GO/epoxy, and Zn3(PO4)2/GO/epoxy, was evaluated using electrochemical experiment and salt spray test. The results revealed that the Zn3(PO4)2/GO/epoxy coating exhibited excellent anti-corrosion effect owing to the synergistic effect of GO and Zn3(PO4)2. When the amount of Zn3(PO4)2/GO composite material was 0.5%, the corrosion current density was 1.66 × 10−7 A/cm2, and the corrosion protection efficiency was 95% higher than that of the pure water-borne epoxy coating. The improvement in the anti-corrosion performance could be attributed to the prolonged invasion path of the corrosive medium. The use of electrostatic self-assembly to synthesize Zn3(PO4)2/GO composite materials in the present study served to provide novel ideas for the preparation of other anti-corrosive materials.

中文翻译：

---

Zn3(PO4)2/GO复合材料静电自组装提高水性环氧涂料防腐性能

摘要 本研究利用“静电自组装”的合成策略制备了具有有效协同增强防腐作用的Zn3(PO4)2/GO复合材料，可以结合两种材料的防腐优势。进一步提高复合材料的防腐性能。分别使用SEM、XRD和XPS研究了制备的复合材料的形貌、结构和组成。此外，使用电化学实验和盐雾试验评估纯环氧树脂涂层、Zn3(PO4)2 (ZP)/环氧树脂、GO/环氧树脂和 Zn3(PO4)2/GO/环氧树脂的耐腐蚀性。结果表明，由于GO和Zn3(PO4)2的协同作用，Zn3(PO4)2/GO/环氧树脂涂层表现出优异的防腐效果。当Zn3(PO4)2/GO复合材料用量为0.5%时，腐蚀电流密度为1.66×10−7 A/cm2，防腐效率比纯水性环氧涂料提高95% . 防腐性能的提高可归因于腐蚀介质侵入路径的延长。在本研究中使用静电自组装合成 Zn3(PO4)2/GO 复合材料有助于为其他防腐材料的制备提供新的思路。