Journal of the Korean Applied Science and Technology (한국응용과학기술학회지)

The Korean Society of Applied Science and Technology (한국응용과학기술학회)
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Preparation of Environmental Friendly High-Solid Coatings and Their Property Changes with Solid Contents

환경친화성 하이솔리드 도료의 제조 및 고형분 함량에 따른 도막물성 변화

  • Park, Hong-Soo (Department of Chemical Engineering, Myongji University) ;
  • Jo, Hye-Jin (Department of Chemical Engineering, Myongji University) ;
  • Shim, Il-Woo (Department of Chemical Engineering, Myongji University) ;
  • You, Hyuk-Jae (Department of Chemical Engineering, Myongji University) ;
  • Kim, Young-Chan (Department of Advanced Materials Engineering, Joongbu University)
  • 박홍수 (명지대학교 공과대학 화학공학과) ;
  • 조혜진 (명지대학교 공과대학 화학공학과) ;
  • 심일우 (명지대학교 공과대학 화학공학과) ;
  • 유혁제 (명지대학교 공과대학 화학공학과) ;
  • 김영찬 (중부대학교 신소재공학과)
  • Published : 2005.06.30
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Abstract

Room temperature cure type of acryl-urethane coatings with high solid content were prepared in this study. Acrylic resins with 80% solid content were cured with hexamethylene diisocyanate (Desmodure N-3600). The cure time of prepared coatings BEHCC-84 (BEHC-84 : $T_g=0^{\circ}C$) and BEHCC-87 (BEHC-87 : $T_g=30^{\circ}C$), measured by rigid-body pendulum method, was recorded 8.3 hours and 3.8 hours, respectively. Dynamic viscoelastic experiment also revealed the glass transition temperature of BEHCC-84 and BEHCC-87 to be $T_g=40.3^{\circ}C$ and $T_g=43.3^{\circ}C$, respectively. It was found that the adhesion and flexural properties among various propeties of coatings were enhanced by the incorporation of caprolactone acrylate monomer into the acrylic resins.

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References

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