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http://dx.doi.org/10.5322/JES.2003.12.7.801

Surface treatments of environmentally friendly Cr-free organic compounds for corrosion protection of metals  

이원기 (부경대학교 화학공학부)
박찬영 (부경대학교 화학공학부)
Publication Information
Journal of Environmental Science International / v.12, no.7, 2003 , pp. 801-807 More about this Journal
Abstract
This work aims the search of environmentally friendly pre-treatment technologies to develop chromate replacements for metal finishing industries due to its toxicological properties. Since the corrosion resistance of steel was strongly related to water permeation, galvanized steel sheets were treated with various hydrophobic silane compounds and water-suspended polymer solution. Also, plasma gas discharge was applied to modify the surface of a polymer coated-steel sheet to be hydrophobic. The surface hydrophobicity of materials was introduced by CF$_3$H plasma exposure. The corrosion property before and after the plasma treatment was investigated in a slat spray tester with 3.5 wt.% NaCl at 35$^{\circ}C$. The results showed that both silane/polymer double coatings and plasma treatment of the galvanized steel exhibited significant retardation of corrosion.
Keywords
Corrosion; Silane compound; Plasma; Retardation;
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Times Cited By KSCI : 1  (Citation Analysis)
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