Journal of the Korean Wood Science and Technology

The Korean Society of Wood Science & Technology (한국목재공학회)
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The Coating Performance of UV Curable Urethane Acrylate Coatings for Fancy Veneer Overlayed Plywood Flooring

  • Lee, Byoung-Hoo (Lab. Of Adhesion & Bio-Composites, Department of Forest Products, Seoul National University) ;
  • Kim, Hyun-Joong (Lab. Of Adhesion & Bio-Composites, Department of Forest Products, Seoul National University) ;
  • Lee, Young-Kyu (Material Property Analysis Lab, National Instrumentation Center for Environmental Management Seoul National University)
  • Received : 2003.03.15
  • Accepted : 2004.06.29
  • Published : 2004.11.25
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Abstract

The goal of study was to investigate the influence of the acrylated urethane oligomer on mechanical properties, the chemical resistance and thermal resistance of the UV curable urethane acrylate coatings for fancy veneer overlayed plywood flooring. The pencil hardness and abrasion resistance of the coated fancy veneer overlayed plywood floorings increased with increasing the acrylate functionality of the acrylated urethane oligomer. In the case of the UV cured film containing hexa-functional acrylated aliphatic urethane oligomer, high discoloration of the coated fancy veneer overlayed plywood flooring was observed near the cracks at the beginning of the chemical treatment. In this study, it was found that the degradation of the UV cured film caused by an alkaline reagent was higher than that of the UV cured film caused by an acidic treatment.

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Acknowledgement

The study is also partially supported by the National Instrumentation Center for Environmental Management (2003-2085).