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Thermal Stability and Surface Hardnes of UV-curable Epoxy Acrylate Coatings for Wooden Flooring  

Hwang, Hyeon-Deuk (서울대학교 산림과학부 환경재료과학 전공 바이오복합재료 및 접착과학 연구실)
Choi, Jae-Hoon (서울대학교 산림과학부 환경재료과학 전공 바이오복합재료 및 접착과학 연구실)
Moon, Je-Ik (서울대학교 산림과학부 환경재료과학 전공 바이오복합재료 및 접착과학 연구실)
Kim, Hyun-Joong (서울대학교 산림과학부 환경재료과학 전공 바이오복합재료 및 접착과학 연구실)
Publication Information
Journal of the Korean Wood Science and Technology / v.36, no.6, 2008 , pp. 121-129 More about this Journal
Abstract
Environmental friendly UV-curable coatings, having excellent hardness, gloss, mar and chemical resistance, are commonly used for the wooden flooring coatings. Especially epoxy acrylate oligomers are chosen for the wooden flooring coatings, due to their thermal stability and fast curing. In this study, we investigated the effect of the acrylate functionality on the thermal stability and surface hardness. The thermal degradations of monomers, oligomer, photoinitiator and formulated coatings with different acrylate functionality were measured using a thermogravimetric analysis (TGA). And the surface hardness was also measured with a pendulum hardness tester to compare relationship between the thermal stability and the physical property. The cured coatings became thermally stable by crosslinking during UV-curing. Both the thermal stability and surface hardness of cured coatings were improved with increasing acrylate functionality.
Keywords
UV-curing; epoxy acrylate; coatings; thermal stability; thermogravimetric analysis(TGA);
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Times Cited By KSCI : 2  (Citation Analysis)
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