Positive effect of the addition of polyaniline on the anticorrosive property of polyethersulfone two‐layer composite coating,Journal of Applied Polymer Science

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Positive effect of the addition of polyaniline on the anticorrosive property of polyethersulfone two‐layer composite coating
Journal of Applied Polymer Science ( IF 2.7 ) Pub Date : 2021-04-28 , DOI: 10.1002/app.50758
Hongyue Wang ₁ , Shiyang Zhu ₁ , Hongyan Yao ₁ , Yizeng Di ₁ , Meng Shu ₁ , Jiahao Li ₁ , Bo Zhang ₁ , Guangzhao Cao ₁ , Shaowei Guan ₁

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In order to prepare a coating with better corrosion resistance, the double‐layer coatings are designed to work together in this article. The double‐layer coatings are made of polyethersulfone and epoxy resin as the matrix resin. Polyaniline (PANI) of different contents was added to the matrix resin by weight to form the primer coats, which was named as d‐0, d‐20, d‐40, d‐60. And polytetrafluoroethylene was introduced into the matrix resin to prepare the surface coats. A two‐layer coating was prepared by coating the surface layer on the primer layer, named as S‐0, S‐20, S‐40, S‐60. The surface morphology of the primer coatings and the cross section morphology of the two‐layer coatings were determined by field emission scanning electron microscopy. The anticorrosion property of the coatings was studied by water absorption, adhesion, salt spray corrosion acceleration test and electrochemical impedance test. The results indicate that the 40 wt% PANI composite coating shows the best corrosion resistance.

中文翻译：

聚苯胺的添加对聚醚砜二层复合涂料防腐性能的积极影响

为了制备具有更好耐腐蚀性的涂层，本文将双层涂层设计为可一起使用。双层涂层由聚醚砜和环氧树脂作为基质树脂制成。将不同含量的聚苯胺（PANI）按重量添加到基体树脂中以形成底漆层，命名为d-0，d-20，d-40，d-60。然后将聚四氟乙烯引入基体树脂中以制备表面涂层。通过在底漆层上涂覆表面层（称为S-0，S-20，S-40，S-60）来制备两层涂层。通过场发射扫描电子显微镜确定底漆涂层的表面形态和两层涂层的横截面形态。通过吸水率，附着力，盐雾腐蚀加速试验和电化学阻抗试验。结果表明40重量％的PANI复合涂层显示出最佳的耐腐蚀性。

更新日期：2021-05-17

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