In this paper, a high-performance epoxy nanocomposite with dual active/barrier protection ability based on calcium zinc phosphate (CZP) nanopigment was fabricated. Then chemistry, morphology, and anti-corrosion ability of the commercial zinc phosphate (ZP) and CZP pigments were studied. By electrochemical techniques, the inhibition potency of the CZP nanopigment was examined in a NaCl solution on mild steel (MS) substance and compared with that of ZP. Results revealed a higher corrosion inhibition degree of the CZP compared to the ZP. The growth of a protective layer on the metal coupons exposed to the CZP extract was illustrated by X-ray photoelectron spectroscopy (XPS), field emission scanning electron microscopy (FE-SEM), and Fourier transform infrared (FT-IR) spectroscopy. The reinforcement effects of CZP and ZP pigments on the epoxy composites' corrosion resistance were proved by electrochemical impedance spectroscopy (EIS) and salt spray test results. The better protection properties of the CZP loaded coating (23,600 MΩ cm²) compared with the unfilled coating (0.014 MΩ cm²) and the one loaded with ZP (0.26 MΩ cm²) were understood from the EIS test results.

在本文中，基于磷酸锌钙（CZP）纳米颜料制备了具有双重活性/屏障保护能力的高性能环氧纳米复合材料。然后研究了商业磷酸锌 (ZP) 和 CZP 颜料的化学、形态和抗腐蚀性能。通过电化学技术，研究了 CZP 纳米颜料在 NaCl 溶液中对低碳钢 (MS) 物质的抑制效力，并与 ZP 进行了比较。结果表明，与 ZP 相比，CZP 的腐蚀抑制程度更高。X 射线光电子能谱 (XPS)、场发射扫描电子显微镜 (FE-SEM) 和傅里叶变换红外 (FT-IR) 光谱说明了暴露于 CZP 提取物的金属试样上保护层的生长。电化学阻抗谱(EIS)和盐雾试验结果证明了CZP和ZP颜料对环氧树脂复合材料耐腐蚀性能的增强作用。CZP 负载涂层 (23,600 MΩ cm² ) 与未填充涂层 (0.014 MΩ cm ² ) 和加载 ZP (0.26 MΩ cm ² ) 的涂层相比，从 EIS 测试结果中可以看出。