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http://dx.doi.org/10.5658/WOOD.2011.39.6.538

Effect of Green Tea Content on Dynamic Modulus of Elasticity of Hybrid Boards Composed of Green Tea and Wood Fibers, and Prediction of Static Bending Strength Performances by Flexural Vibration Test  

Park, Han-Min (Faculty of Forest Science, Institute of Agriculture & Life Science, Gyeongsang National University)
Lee, Soo-Kyeong (Faculty of Forest Science, Institute of Agriculture & Life Science, Gyeongsang National University)
Seok, Ji-Hoon (Faculty of Forest Science, Institute of Agriculture & Life Science, Gyeongsang National University)
Choi, Nam-Kyeong (Faculty of Forest Science, Institute of Agriculture & Life Science, Gyeongsang National University)
Kwon, Chang-Bea (Faculty of Forest Science, Institute of Agriculture & Life Science, Gyeongsang National University)
Heo, Hwang-Sun (Faculty of Forest Science, Institute of Agriculture & Life Science, Gyeongsang National University)
Byeon, Hee-Seop (Faculty of Forest Science, Institute of Agriculture & Life Science, Gyeongsang National University)
Yang, Jae-Kyung (Faculty of Forest Science, Institute of Agriculture & Life Science, Gyeongsang National University)
Kim, Jong-Cheol (Institute of Hadong Green Tea)
Publication Information
Journal of the Korean Wood Science and Technology / v.39, no.6, 2011 , pp. 538-547 More about this Journal
Abstract
In this study, eco-friendly hybrid composite boards were manufactured from green tea and wood fibers for application as interior materials with various functionalities of green tea and strong strength properties of wood fibers. In this relation, the effect of green tea content on dynamic MOEs (modulus of elasticity) of these green tea and wood fibers composite boards were investigated. The dynamic MOEs of hybrid composite boards were lower than those of control boards without green tea, and the values decreased with the increase of green tea content. Also, the dynamic MOEs appeared to be somewhat different by resin type used for board manufacture. The hybrid composite boards manufactured from $E_1$ grade urea resin, which has higher molar ratio of formaldehyde to urea than that of $E_0$ grade one, were 1.06~1.54 times higher than that manufactured from $E_0$ grade. And, the differences between hybrid composite boards manufactured from both adhesive increased with the increase of green tea content. On the other hand, high correlations were found between dynamic MOE and static bending strength performances, it was concluded that static bending strength performances could be estimated from the dynamic MOE, except for a few hybrid board types with large variations.
Keywords
Green tea; wood fiber; urea resin; hybrid composite board; dynamic MOE;
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Times Cited By KSCI : 7  (Citation Analysis)
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