含聚(4 -乙烯基吡啶)多层聚合物涂层在镁合金AZ31上的防腐性能

Chayanika Das, Eleni Kastania, J. Witt, O. Ozcan
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引用次数: 3

摘要

本研究的目的是开发用于镁合金AZ31防腐的聚合物薄膜。聚(4‐乙烯基吡啶)(P4VP)由于其半导体特性和质子导电性而被选择作为聚合物基质。测试了聚丙烯酸作为交联层,以提高界面附着力。利用线性扫描伏安法和电化学阻抗谱(EIS)等电化学方法研究了多层涂层在腐蚀介质模拟技术和生物医学应用中的宏观腐蚀性能。结果表明,多层薄涂层可以抑制镁合金的腐蚀速率。据我们所知,这是第一次证明使用P4VP作为具有质子导电性的导电聚合物膜来保护镁合金的腐蚀。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Corrosion protection properties of poly(4‐vinyl pyridine) containing multilayer polymeric coatings on magnesium alloy AZ31
The aim of this study is to develop polymeric thin films for corrosion protection of magnesium alloy AZ31. As polymer matrix, poly(4‐vinyl pyridine) (P4VP) is selected due to its semiconducting properties and protonic conductivity. Polyacrylic acid is tested as crosslinking layers to improve interfacial adhesion. The macroscopic corrosion properties of the multilayer coatings are investigated by means of electrochemical methods, such as linear sweep voltammetry and electrochemical impedance spectroscopy (EIS), in corrosive media simulating technical and biomedical applications. It is demonstrated that thin multilayer coatings can suppress the corrosion rates of magnesium alloys. To our best knowledge, this is the first demonstration of the use of P4VP as a conducting polymer film with protonic conductivity for corrosion protection of magnesium alloys.
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