Loading…
Corrosion protection by multilayer coating using layer-by-layer technique
In this work, polyaniline (PAni), a polycation, and poly (vinylsulfonic acid, sodium salt) (PVSS), a polyanion, were used for preparing multilayer thin films on AA2024 alloy surface using the layer-by-layer growth technique. The corrosion of AA2024 alloy surfaces coated with a number n (n = 0, 1, 5,...
Saved in:
Published in: | Surface & coatings technology 2011-01, Vol.205 (8), p.2857-2864 |
---|---|
Main Authors: | , |
Format: | Article |
Language: | English |
Subjects: | |
Citations: | Items that this one cites Items that cite this one |
Online Access: | Get full text |
Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
Summary: | In this work, polyaniline (PAni), a polycation, and poly (vinylsulfonic acid, sodium salt) (PVSS), a polyanion, were used for preparing multilayer thin films on AA2024 alloy surface using the layer-by-layer growth technique. The corrosion of AA2024 alloy surfaces coated with a number n (n
=
0, 1, 5, 8, 10, 15) of multilayered thin films was investigated in 0.1
M NaCl aqueous solutions using potentiodynamic polarization, chronoamperometry and electrochemical impedance spectroscopy (EIS) techniques. These electrochemical tests were conducted at a temperature of (25
±
2)
°C. Surface coated with 08 (PVSS / PAni) bilayers presented greater resistance to corrosion in the chloride containing environment.
►Preparing multilayer thin films using the layer-by-layer growth technique ►PAni and PVSS were used to form multilayer films on AA2024 alloy surfaces ►Potentiodynamic polarization, chronoamperometric and EIS tests ►The best corrosion protection is provided by the 08 (PVSS / PAni) bilayer films |
---|---|
ISSN: | 0257-8972 1879-3347 |
DOI: | 10.1016/j.surfcoat.2010.10.061 |