화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Journal of Industrial and Engineering Chemistry, Vol.31, 291-300, November, 2015
DOI10.1016/j.jiec.2015.07.001  Export Citation
Stone-chipping and adhesion deterioration of automotive coating systems caused by outdoor weathering of underneath layers
A. Alizadeh Razin, H. Yari1, †, and B. Ramezanzadeh1
  • Paint Engineering Department, Pars Khodro Company, Tehran, Iran
  • 1Department of Surface Coating and Corrosion, Institute for Color Science and Technology, Tehran, Iran
E-mail:
The main objective of this study is to investigate how the weathering of underneath electro deposition (ED) layer affects the overall stone-chipping behavior of an automotive coating system. The ED-coated panels were exposed to natural weathering condition before being further coated with top layers. It was found that the underneath layer weathering has a deleterious effect on the chipping and adhesion of the whole coating system. The chemistry and morphology of the weathered ED layer demonstrated that the chalky-like ED surface could not provide a desired foundation for top layers, leading to a coating structure collapse.
Keywords:Automotive coating;Electro-deposition layer;Weathering;Chipping;Pull-off
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