The introduction of poly(tannic acid) (PTA) and cerium ion [Ce(III)] on the surface of α-zirconium phosphate (α-ZrP) endowed the α-ZrP@PTA-Ce(III)/waterborne epoxy composite coating with enhanced corrosion protection and wear resistance performances. The successful preparation of α-ZrP@PTA-Ce(III) was confirmed through X-ray diffraction, X-ray photoelectron spectroscopy, and Fourier transform infrared spectra. PTA improved the compatibility between α-ZrP@PTA-Ce(III) and the waterborne epoxy resin due to the presence of organic groups from tannic acid. The wear resistance test indicated that the incorporation of α-ZrP@PTA-Ce(III) effectively reduced the coefficient of friction and the wear rate. Electrochemical impedance spectroscopy was used to analyze the corrosion protection performance of unbroken coatings and the self-healing ability of scratched coatings. The incorporation of α-ZrP@PTA-Ce(III) improved the protection performace distinctly. In addition, α-ZrP@PTA-Ce(III) endowed the composite coating with dual corrosion inhibition effects, originating from the PTA film, to prevent the penetration of corrosive media and a dense film that came from the Ce(III) cation. The waterborne epoxy system with enhanced corrosion and wear resistance in this paper broadens the application of α-ZrP.

中文翻译：

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具有双重缓蚀作用的α-ZrP@PTA-Ce(III)提高水性环氧涂层的耐磨性和耐腐蚀性


在α-磷酸锆（α-ZrP）表面引入聚单宁酸（PTA）和铈离子[Ce(III)]，形成α-ZrP@PTA-Ce(III)/水性环氧复合涂层具有增强的防腐蚀和耐磨性能。通过X射线衍射、X射线光电子能谱和傅里叶变换红外光谱证实α-ZrP@PTA-Ce(III)的成功制备。由于单宁酸有机基团的存在，PTA 改善了 α-ZrP@PTA-Ce(III) 与水性环氧树脂之间的相容性。耐磨测试表明，α-ZrP@PTA-Ce(III)的掺入有效降低了摩擦系数和磨损率。采用电化学阻抗谱分析未破损涂层的防腐性能和划伤涂层的自修复能力。 α-ZrP@PTA-Ce(III)的掺入显着提高了防护性能。此外，α-ZrP@PTA-Ce(III)赋予复合涂层双重缓蚀作用，源自PTA膜，防止腐蚀介质的渗透，并形成来自Ce(III)阳离子的致密膜。本文提出的具有增强耐腐蚀性和耐磨性的水性环氧体系拓宽了α-ZrP的应用。