Corrosion stability of epoxy coatings on aluminum pretreated by vinyltriethoxysilane
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The electrochemical and transport properties and adhesion of epoxy coatings electrodeposited on aluminum pretreated by vinyltriethoxysilane (VTES) were investigated during exposure to 3% NaCl. The VTES films were deposited on aluminum surface from 2% and 5% vinyltriethoxysilane solution. The electrochemical results showed that the pretreatment based on VTES film deposited from 5% solution provides enhanced barrier properties and excellent corrosion protection. The values of diffusion coefficient of water through epoxy coating on this substrate and water content inside the epoxy coating were the smallest, indicating the low porosity of the coating. In addition, the good adhesion was maintained throughout the whole investigated time period. (C) 2008 Elsevier Ltd. All rights reserved.
Кључне речи:aluminum / EIS / polymer coatings
Извор:Corrosion Science, 2008, 50, 7, 2078-2084
- Ministry of Science and Environmental Protection, Republic of Serbia 
ISSN: 0010-938X (print)