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Manipulating transport paths of inhibitor pigments in organic coating by addition of other pigments
Progress in Organic Coatings ( IF 6.6 ) Pub Date : 2022-08-05 , DOI: 10.1016/j.porgcoat.2022.107072
S.Gh.R. Emad, S. Gad, Q. Ai, Y. Wan, S. Morsch, T.L. Burnett, Y. Liu, S.B. Lyon, J. Li, X. Zhou

Adequate leaching of active inhibitor pigments in organic coatings is essential for corrosion protection that relies on active inhibition of the metallic substrate. Therefore, it is important to obtain a comprehensive understanding of the factors that influence leaching kinetics and mechanisms. In the present study, model organic coatings were formulated to investigate the influence of additional pigmentation (i.e. pigments other than the main inhibitor) on the leaching of species released from the main inhibitor pigment. It is found that addition of soluble/sparingly soluble pigments into the organic coating results in increased leaching rate. This is attributed to the formation of clusters comprised of both the main inhibitor pigment and the additional pigment. The network of cavities and voids formed upon dissolution and removal of the soluble pigment introduces transport paths in the organic coating, and consequently, facilitates the leaching of the main inhibitor pigment.



中文翻译:

通过添加其他颜料来控制有机涂料中抑制剂颜料的传输路径

有机涂层中活性抑制剂颜料的充分浸出对于依赖于金属基材的活性抑制的腐蚀保护至关重要。因此,全面了解影响浸出动力学和机制的因素非常重要。在本研究中,配制了模型有机涂料以研究附加色素沉着(即除主要抑制剂以外的颜料)对从主要抑制剂颜料中释放的物质浸出的影响。发现将可溶性/微溶性颜料添加到有机涂层中导致浸出率增加。这归因于由主要抑制剂颜料和附加颜料组成的簇的形成。

更新日期:2022-08-05
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