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http://dx.doi.org/10.12925/jkocs.2006.23.4.6

Application of Acrylic Resins Containing Acetoacetoxy Group and 80% Solid Contents to High-Solid Coatings  

Park, Hong-Soo (Department of Chemical Engineering, Myongji University)
Hong, Seok-Young (Department of Chemical Engineering, Myongji University)
Kim, Song-Hyoung (Department of Chemical Engineering, Myongji University)
Yoo, Gyu-Yeol (Department of Chemical Engineering, Myongji University)
Ahn, Sung-Hwan (Department of Chemical Engineering, Myongji University)
Hahm, Hyun-Sik (Department of Chemical Engineering, Myongji University)
Publication Information
Journal of the Korean Applied Science and Technology / v.23, no.4, 2006 , pp. 319-327 More about this Journal
Abstract
In order to prepare high-solid coatings, first acrylic resins (HSAs) which contain 80% solid were synthesized, and then the prepared resins were cured with isocyanate at room temperature. In the synthesis of HSAs, viscosity, number average molecular weight $(M_n)$ and conversion were $1372{\sim}2700$ cps, $1520{\sim}1650$ and $83{\sim}87%$, respectively. Among the four kinds of initiators used, tert-amylperoxy-2-ethyl hexanoate was the most proper one in the synthesis of HSAs. With increasing $T_g$ values, viscosity increased rapidly and molecular weight increased slowly. As a result of the examination of coated films, it was found that $60^{\circ}$ specular gloss, impact resistance, heat resistance and cross-hatch adhesion were good, and pencil hardness, drying time and pot life were poor.
Keywords
acetoacetoxy group; 80% solid contents; acrylic resin; high-solid coatings;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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