Methacryloxypropyltrimethoxysilane films on aluminium: Electrochemical characteristics, adhesion and morphology
By Jovanović, Ž.; Bajat, J.B.; Janiić-Heinemann, R.M.; Dimitrijević, M. & Mišković-Stanković, V.B.
Published in Progress in Organic Coatings
NULL
2009
Abstract
The electrochemical characteristics, adhesion and morphology of methacryloxypropyltrimethoxysilane (MAPT) films on aluminium were investigated during exposure to 3 wt.% NaCl. The MAPT films were deposited on aluminium surface from 2 to 5 vol.% methacryloxypropyltrimethoxysilane solutions, with the aim to investigate the influence of deposition parameters (silane solution concentration and curing time) on electrochemical characteristics, adhesion and morphology of MAPT films on aluminium. Using electrochemical impedance spectroscopy (EIS), potential–time measurements, adhesion measurements and optical microscopy coupled with image analysis, it was shown that films deposited from 5 vol.% solution exhibited better corrosion stability and adhesion, as well as lower porosity comparing to 2 vol.% solution and improved the corrosion protection of aluminium substrate, while the curing time had no influence on these characteristics.
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