|
authors |
Carneiro, J; Tedim, J; Fernandes, SCM; Freire, CSR; Gandini, A; Ferreira, MGS; Zheludkevich, ML |
|
nationality |
International |
|
journal |
SURFACE & COATINGS TECHNOLOGY |
|
author keywords |
Chitosan; Corrosion inhibitor; Coating; AA2024 |
|
keywords |
ALUMINUM-ALLOY; DRUG-DELIVERY; 2-MERCAPTOBENZOTHIAZOLE; INHIBITORS; SURFACES |
|
abstract |
Chitosan-based coatings were suggested in this work as a "green" alternative for active corrosion protection of aluminum alloys. 2-Mercaptobenzothiazole (MBT) was used here as an efficient corrosion inhibitor for AA2024. The electrochemical impedance spectroscopy has demonstrated a strong inhibiting action of MBT showing no corrosion attack even after one week in full immersion tests when MBT-loaded chitosan coatings are applied. The surface properties of the chitosan coatings were improved by chemical grafting with poly(ethylene-alt-maleic anhydride) (PEMA) and poly(maleic anhydride-alt-1-octadecene) (POMA), aiming at increasing hydrophobicity that is crucial for corrosion protection in atmospheric conditions. The high contact angles, in the range of 140 degrees, were obtained on the MBT-containing chitosan films. (c) 2013 Elsevier B.V. All rights reserved. |
|
publisher |
ELSEVIER SCIENCE SA |
|
issn |
0257-8972 |
|
year published |
2013 |
|
volume |
226 |
|
beginning page |
51 |
|
ending page |
59 |
|
digital object identifier (doi) |
10.1016/j.surfcoat.2013.03.035 |
|
web of science category |
Materials Science, Coatings & Films; Physics, Applied |
|
subject category |
Materials Science; Physics |
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unique article identifier |
WOS:000320415400008
|
