Corrosion Science and Technology

The Corrosion Science Society of Korea (한국부식방식학회)
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Preparation and Characterization of Muscovite Mica/UV Coating Materials for Steel

  • Cheong, In-Woo (Department of Applied chemistry, Kyungpook National University) ;
  • Kim, Hyeon-Seok (Department of Applied chemistry, Kyungpook National University) ;
  • Hwang, Dong-Seop (Department of Applied chemistry, Kyungpook National University) ;
  • Yoo, Hye-Jin (Surface Technology Research Group, POSCO Technical Research Laboratory) ;
  • Kim, Jin-Tae (Surface Technology Research Group, POSCO Technical Research Laboratory) ;
  • Lee, Jae-Ryung (Surface Technology Research Group, POSCO Technical Research Laboratory)
  • Received : 2009.08.03
  • Accepted : 2010.12.13
  • Published : 2010.12.01
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Abstract

This paper describes the exfoliation and surface modification of muscovite mica for UV coating formulation. For the exfoliation of the mica, hydrothermal process was used in the presence of lithium nitrate ($LiNO_3$). After the cation exchange with $Li^+$ ions, the surface of the mica was modified with several amphiphilic substances to increase compatibility and storage stability in UV coating formulation. Such a hydrophobic surface modification affected colloidal stability as well as dispersibility of the exfoliated mica in UV coating solution. Anticorrosive property of mica/UV coated steel plates was tested by salt spray test (SST) and compared with sodium montmorillonite ($Na^+$-MMT)/UV coated steel plates.

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