Waterborne acrylic anti-corrosion coatings with different proportions of yttrium oxide/titanium dioxide fillers

IF 7.3 2区材料科学 Q1 CHEMISTRY, APPLIED

Progress in Organic Coatings Pub Date : 2025-06-10 DOI:10.1016/j.porgcoat.2025.109423

Xiangfeng Meng , Lihuan Hou , Zhiping Wang , Wei Liu , Huiqing Hao , Xiaoting Lv , Junwei An

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Abstract

Acrylic resin composite coatings containing different proportions of yttrium oxide/titanium dioxide particles were uniformly brushed on the surface of 2A12 aluminum alloy. A comprehensive study was conducted on the microstructure, structure and electrochemical properties of the deposited coatings to reveal the fundamental effects of the Y₂O₃/TiO₂ addition at different weight ratios. The results indicate that Y₂O₃/TiO₂ have been incorporated into the composite coating. A suitable proportion of Y₂O₃/TiO₂ composite particles is beneficial for forming a flat coating surface with uniform pores and no cracks. The addition of Y₂O₃/TiO₂ reduced the degree of resin curing reaction. The quality of corrosion resistance and the possibility of hydrolysis degradation of composite coatings are fully dependent on pore filling. The corrosion rate and Z-value of the coating with a 1:4 weight ratio of Y₂O₃/TiO₂ reach approximately 8.5 × 10⁻² mm/year and 10⁵ Ωcm², exhibiting the highest corrosion resistance performance.

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不同比例氧化钇/二氧化钛填料的水性丙烯酸防腐涂料

在2A12铝合金表面均匀涂刷了含有不同比例氧化钇/二氧化钛颗粒的丙烯酸树脂复合涂层。对镀层的微观结构、结构和电化学性能进行了全面的研究，揭示了不同质量比下添加Y2O3/TiO2对镀层的基本影响。结果表明，Y2O3/TiO2已加入到复合涂层中。适当比例的Y2O3/TiO2复合颗粒有利于形成孔隙均匀、无裂纹的平坦涂层表面。Y2O3/TiO2的加入降低了树脂固化反应的程度。复合涂层的耐腐蚀性能和水解降解的可能性完全取决于孔隙填充。当Y2O3/TiO2质量比为1:4时，涂层的腐蚀速率和z值约为8.5 × 10−2 mm/年和105 Ωcm2，具有最高的耐腐蚀性能。

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来源期刊

Progress in Organic Coatings 工程技术-材料科学：膜

CiteScore

11.40

自引率

15.20%

发文量

577

审稿时长

48 days

期刊介绍： The aim of this international journal is to analyse and publicise the progress and current state of knowledge in the field of organic coatings and related materials. The Editors and the Editorial Board members will solicit both review and research papers from academic and industrial scientists who are actively engaged in research and development or, in the case of review papers, have extensive experience in the subject to be reviewed. Unsolicited manuscripts will be accepted if they meet the journal''s requirements. The journal publishes papers dealing with such subjects as: • Chemical, physical and technological properties of organic coatings and related materials • Problems and methods of preparation, manufacture and application of these materials • Performance, testing and analysis.