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Erschienen in: Journal of Coatings Technology and Research 3/2019

03.01.2019

High-salt-tolerance anticorrosion coating with salt-enabled self-healing ability from branched polyethyleneimine and poly(acrylic acid)

verfasst von: Jiajia Wang, Yuhua Ma, Shun Feng, Jide Wang

Erschienen in: Journal of Coatings Technology and Research | Ausgabe 3/2019

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Abstract

A polyethyleneimine/poly(acrylic acid) (bPEI/PAA) multilayer coating was assembled on copper by layer-by-layer assembly and its anticorrosion performance and self-healing behavior investigated in 500 mM NaCl solution using multiple techniques including scanning electron microscopy, electrochemical impedance spectroscopy, equivalent circuit modeling, potentiodynamic polarization measurements, and cyclic voltammetry. In 500 mM NaCl solution, the coating could not only effectively prevent corrosion of copper by increasing the charge-transfer resistance and inhibition effectiveness of the system, but also spontaneously repair damage with a width of about 50 μm within 1 h. It is hoped that these findings will indicate a route for preparation of novel anticorrosion coatings with self-healing ability.

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Metadaten
Titel
High-salt-tolerance anticorrosion coating with salt-enabled self-healing ability from branched polyethyleneimine and poly(acrylic acid)
verfasst von
Jiajia Wang
Yuhua Ma
Shun Feng
Jide Wang
Publikationsdatum
03.01.2019
Verlag
Springer US
Erschienen in
Journal of Coatings Technology and Research / Ausgabe 3/2019
Print ISSN: 1547-0091
Elektronische ISSN: 1935-3804
DOI
https://doi.org/10.1007/s11998-018-00159-1

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