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Improvement of anti-corrosive property for alloy plated steel sheet by UV curable organic-inorganic hybrid coatings

합금도금강판 내식성 향상을 위한 UV 경화형 유무기 하이브리드 코팅

  • Park, Jongwon (Ulsan Industrial Technology Research Center, Research Institute of Industrial Science & Technology) ;
  • Lee, Kyunghwang (Ulsan Industrial Technology Research Center, Research Institute of Industrial Science & Technology) ;
  • Na, Hyunju (Ulsan Industrial Technology Research Center, Research Institute of Industrial Science & Technology) ;
  • Park, Byungkyu (Surface Treatement Department, AK ChemTech Co., Ltd.) ;
  • Nam, Yeungsub (Surface Treatement Department, AK ChemTech Co., Ltd.) ;
  • Hong, Shinhyub (Surface Treatement Department, AK ChemTech Co., Ltd.)
  • 박종원 (포항산업과학연구원 울산플랜트연구본부) ;
  • 이경황 (포항산업과학연구원 울산플랜트연구본부) ;
  • 나현주 (포항산업과학연구원 울산플랜트연구본부) ;
  • 박병규 (에이케이켐텍 표면처리부) ;
  • 남영섭 (에이케이켐텍 표면처리부) ;
  • 홍신협 (에이케이켐텍 표면처리부)
  • Received : 2012.11.12
  • Accepted : 2012.12.21
  • Published : 2013.02.15

Abstract

According to its merits about high curing speed and low emission of volatile organic compounds, UV curable inorganic-organic coating technology has been developed as an alternative for toxic and carcinogenic chromate-based treatments for years. It is consistently observed that ultra-thin films offer excellent corrosion protection as well as paint adhesion to metals. Based on the tetra-ethylorthosilicate(TEOS) and methacryloxypropyl trimethoxysilane(MPTMS), inorganic sol was synthesized and formed hybrid networks with UV curable acrylic monomer, 6-hexanediol diacrylate(HDDA), trimethylolpropane triacrylate(TMPTA), pentaerylthritol triacrylate(PETA). Several methods were used to test their properties such as salt spray test, potentiodynamic measurement, tape peel test, etc. It was shown that anti-corrosive property and stability of storage were affected by the molecular ratios of inorganic and organic compounds. It was not only the stability of storage, but had a excellent anti-corrosive, paint adhesive, and anti-solvent properties in a final molar ratios of 0.6/0.04/0.86/0.005 (TEOS/MPTMS/Acetone/HNO3) and 0.08/0.106/0.081/0.02 (TMPTA/HDDA/PETA/photo initiator).

Keywords

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