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http://dx.doi.org/10.12925/jkocs.2005.22.2.4

Preparation of Environmental Friendly High-Solid Coatings and Their Property Changes with Solid Contents  

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)
Publication Information
Journal of the Korean Applied Science and Technology / v.22, no.2, 2005 , pp. 116-122 More about this Journal
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.
Keywords
acrylic resin; isocyanate; high-solid coatings; physical properties;
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