Browse > Article
http://dx.doi.org/10.5322/JES.2005.14.1.097

Environmentally Friendly Surface Treatments for Improvement of Corrosion of Steel Sheets: Synergy Effect by Multicoating  

Jeon Sangik (Division of Chemical Engineering, Pukyong National University)
Park Chan-Young (Division of Chemical Engineering, Pukyong National University)
Ryou Jin-Ho (Technical Research Laboratories, POSCO)
Lee Won-Ki (Division of Chemical Engineering, Pukyong National University)
Publication Information
Journal of Environmental Science International / v.14, no.1, 2005 , pp. 97-103 More about this Journal
Abstract
Because of the toxicity of hexavelant chromium ion, treatments of metallic surface with chromate compounds to retard corrosion are undesirable for safety control in industrial uses and protection of environment. In this study, we investigated several compounds such as inorganic, organic, and polymer materials in order to sub­stitute the chromate conversion treatment on steel sheet. The corrosion property was investigated in a salt spray tester with 3.5 $wt.{\%}\;NaCI\;at\;35^{\circ}C.$ The results showed that the zirconium/silane/polymer triple coatings on the galvanized steel exhibited a significant retardation of corrosion. Although the multicoating system needs a com­plexed processing, we can confirm a possibility of development of a chromate-free chemical conversion treat­ment for galvanized steel sheet.
Keywords
Corrosion; Retardation; Multicoating; Chromate-free;
Citations & Related Records
연도 인용수 순위
  • Reference
1 Yuan, W. and W. J van Ooij, 1997, Characterization of organofunctional silane films on zinc substrates, J. Coll. & Int. Sci., 185, 197-205   DOI   ScienceOn
2 Hager, H. E., 2000, Chromate-free protective coatings, US Patent No. 6,077,885
3 Odashima, H. and T. Takahashi, 2000, Chromium-free, metal surface-treating composition and surface-treated metal sheet, US patent No. 6,040,054
4 이원기, 박찬영, 2003, 금속의 내식성향상을 위한 환경친화형 무크롬 유기화합물의 표면처리, 한국환경과학회지, 12(7), 801-807
5 Sabata, A., W. J. van Ooij and R. J Koch, 1993, The interphase in painted metals pretreated by functional silanes, J. Adhesion Sci. Technol., 7(11), 1153-1159   DOI   ScienceOn
6 Foley, R. T., 1977, Corrosion and metal artefacts: A dialogue between conservators and archaeologists and corrosion scientists, special publication 479, NBS, Washington DC, 6776pp
7 Hinton, B. W., 1991, Corrosion prevention and chromates, the end of an era?, Metal Finishing, Sept., 55-61pp
8 Davis, J R., 2000, Corrosion, ASM International, Ohio, 363-381pp
9 박찬섭, 정용균, 장삼규, 2001, 수지피복 강판의 제조와 응용, 고분자 과학과 기술, 12(5), 660-675
10 Hara, T., M. Ogawa and M. Yamashita, 1982, Chromium-free type chemical conversion treatment for galvanized steel sheet, Nippon Kokan Tech. Report, 34, 49-54
11 van Ooij, W. J, 1985, Industrial Adhesion Problems, Orbital Press, Oxford, UK, 75-99pp
12 Honstro, S. E., J Karlsson, W. J van Ooij, N. Tang and H. Klang, 1996, Paint adhesion and corrosion performance of chromium-free pretreatments of 55%Al/Zn coated steel, J. Adhesion Sci. Technol., 10, 883-870   DOI   ScienceOn
13 Dolan, S. E., 1999, Process for treating with aqueous acidic composition that is substantially free from chromium (VI), US Patent No. 5,449,414
14 Aramaki, K., 2000, The healing effect of polymer films containing a non-chromate inhibitor on iron corrosion at scratched surfaces, Carros. Sci., 42, 1975-1991   DOI   ScienceOn