Polydopamine Nanomembranes as Adhesion Layers for Improved Corrosion Resistance in Low Carbon Steel

被引：15
作者：
Ding, Zihao [1 ]
Fatollahi-Fard, Farzin [1 ]
Kwon, Ik Soo [1 ]
Pistorius, Petrus Christiaan [1 ]
Bettinger, Christopher J. [1 ,2 ]
机构：
[1] Carnegie Mellon Univ, Dept Mat Sci & Engn, 5000 Forbes Ave, Pittsburgh, PA 15213 USA
[2] Carnegie Mellon Univ, Dept Biomed Engn, 5000 Forbes Ave, Pittsburgh, PA 15213 USA
来源：
ADVANCED ENGINEERING MATERIALS | 2018年 / 20卷 / 11期
基金：
美国国家卫生研究院; 美国安德鲁·梅隆基金会; 美国国家科学基金会;
关键词：
adhesion; corrosion; interface; polydopamine; polymer; VOLUMETRIC EXPANSION; SURFACE-CHEMISTRY; ORGANIC COATINGS; INHIBITION; PROTECTION; DEPOSITION; ACID;
D O I：
10.1002/adem.201800621
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Low-carbon steel is an important commodity material, but poor corrosion resistance has a strong impact on its service life, which leads to great loss in economic development. Polymer coatings serve as barrier layers that confer corrosion resistance. However, robust adhesion between steels and polymer films operating in complex fluids is challenging. This study evaluates the utility of adhesion layers composed of polydopamine, an organic film formed through simultaneous deposition, and polymerization in aqueous phases. Here, polydopamine serves as an intermediary adhesion layer between metallic substrates and polymer coatings. The composition, microstructure, and electrochemical properties of polydopamine nanomembranes are characterized. The impact of polydopamine nanomembranes on adhesion and supplementary corrosion resistance of polymer-based barrier layers is assessed using a functional assay. These results suggest that polydopamine-based nanomembranes can serve as effective adhesion-promoting intermediary layers that retard corrosion and prolong the service life of low-carbon steels in certain applications.
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页数：6
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