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Development and Performance Evaluation of Anti-cavitation Paint with a Lamella Glass-flake

판상형 Glass-flake를 이용한 내캐비테이션 도료 개발 및 성능평가

  • 박혜영 (성균관대학교 화학공학과 바이오나노융합재료연구센터) ;
  • 김성길 ((주)비앤비 기술연구소) ;
  • 김상석 ((주)비앤비 기술연구소) ;
  • 최이찬 (성균관대학교 화학공학과) ;
  • 김병우 (성균관대학교 화학공학과) ;
  • 김승진 (한국건설생활환경연구원)
  • Received : 2015.05.26
  • Accepted : 2015.10.01
  • Published : 2016.04.01

Abstract

In response to the cavitation caused by the partial vacuum caused by the fluid flow, a paint was developed by dispersing the lamella-shaped glass-flake in resin for anti-cavitation. This composite paint was developed by using the inorganic filler (lamella shaped glass-flake) and the NBR (Acrylonitrile-butadiene rubber) which was modified epoxy resin. Especially, the glass-flake was a thin film with a thickness of about 100~200 nm and length of about $20{\sim}30{\mu}m$, the aspect ratio was about 200 to 300 times that of the plate-shaped. So the paint for anti-cavitation have shown excellent performance in corrosion resistance. The results of evaluating anti-cavitation performance was below, tensile strength $4.8{\sim}6N/mm^2$ or more, rupture elongation 30% or higher, abrasive speed $10mm^2/h$ or less. In particular, it showed more than twice the superior performance compared to existing advanced foreign products in anti-cavitation performance evaluation.

Keywords

Paint;Cavitation;Glass-flake;Lamella shaped;NBR

Acknowledgement

Supported by : 중소기업청

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