Corrosion Science and Technology

The Corrosion Science Society of Korea (한국부식방식학회)
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A Study on Kaolin and Titanium dioxide affecting Physical Properties of Electrocoating

  • Yang, Wonseog (School of Materials Science and Engineering, Inha University) ;
  • Hwang, Woonsuk (School of Materials Science and Engineering, Inha University)
  • Received : 2013.10.25
  • Accepted : 2013.10.29
  • Published : 2013.10.31
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Abstract

The electrocoating for automotive bodies is pigmented with a mixture of titanium dioxide and kaolin. In this study, the effects of titanium dioxide and kaolin contents in coating on electrodeposition process, drying, and surface properties such as surface roughness, gloss, impact resistance and corrosion resistance were investigated. Titanium dioxide and kaolin in coating do not have a decisive effect on curing reaction during drying and corrosion resistance but on gloss, surface roughness, impact resistance and electrodeposition process of coating. According to its size and shape on coating surface, pigment contents increased during drying process. However, the contents of kaolin and $TiO_2$ in coating didn't affect the corrosion resistance on zinc phosphated substrate, and the curing properties.

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