Browse > Article
http://dx.doi.org/10.14773/cst.2014.13.5.186

A study on affecting factors by using dolly in coating adhesion test  

Baek, Yun-Ho (Protective Coating Research Dep't, Industrial Technology Institute, Hyundai Heavy Industries)
Son, Seong-Mo (Protective Coating Research Dep't, Industrial Technology Institute, Hyundai Heavy Industries)
Park, Chung-Seo (Protective Coating Research Dep't, Industrial Technology Institute, Hyundai Heavy Industries)
Publication Information
Corrosion Science and Technology / v.13, no.5, 2014 , pp. 186-194 More about this Journal
Abstract
Establishment of adhesion strength measurement procedure for marine epoxy coatings was conducted in order to ensure reliability of the test results. It was found that (1) the increase in thickness of the substrates would induce increase of pull-off strength. Especially, the increase in adhesion strength with the substrate thickness increment was attributed to the transition of stress mode to the pure tensile mode excluding bending effect. (2) The longer curing time, the higher pull-off strength. It may be due to higher cross-linking density of the coating (3) The pull-off strength increases as coating thickness increases due to the diminishment of bending effect (4) The longer drying time after water immersion, the higher pull-off strength. It may be due to the evaporation of water molecule at the coating-substrate interface.
Keywords
coating; pull-off strength; epoxy; polyamide;
Citations & Related Records
연도 인용수 순위
  • Reference
1 ASTM D4541, Standard test method for pull-off strength of coatings using portable adhesion tester, ASTM International (2002).
2 T. Kolsaker, Protective Coating Europe, 13 (1998).
3 Clive H. Hare, Protective Coatings: Fundamentals of Chemistry and Composition, Technology Publishing Company (1994).
4 Clive H. Hare, Journal of Protective Coating and Linings, 83 (1995).
5 ISO4624, Paints and Varnishes--Pull-off Test for Adhesion, ISO Standards (2002).
6 E. McCafferty, V. Pravdic, and A. C. Zettlemoyer, Trans. Faraday Soc., 66, 1720 (1970).   DOI
7 F. J. Micale, M. Topic, C. L.Cronan, H. Leideiser and A. C. Zettlemoyer, J. Colloid Interface Sci., 55, 540 (1976).   DOI   ScienceOn
8 ASTM D870, Standard test method for water resistance of coatings using water immersion, ASTM International (2002).
9 A. B. Port, The Chemistry and Physics of Coatings, Royal Society of Chemistry (1994).