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Effect of Green Tea Content on Static Bending Strength Performance of Hybrid Boards Composed of Green Tea and Wood Fibers  

Park, Han-Min (Div. of Environmental Forest sci.(Insti. of Agric. & Life Sci.), Gyeongsang Nat'l Univ.)
Kang, Dong-Hyun (Div. of Environmental Forest sci.(Insti. of Agric. & Life Sci.), Gyeongsang Nat'l Univ.)
Lim, Na-Rea (Div. of Environmental Forest sci.(Insti. of Agric. & Life Sci.), Gyeongsang Nat'l Univ.)
Lee, Soo-Kyeong (Div. of Environmental Forest sci.(Insti. of Agric. & Life Sci.), Gyeongsang Nat'l Univ.)
Jung, Kang-Won (Institute of Hadong Green Tea)
Kim, Jong-Chul (Institute of Hadong Green Tea)
Cho, Kyeong-Hwan (Institute of Hadong Green Tea)
Publication Information
Journal of agriculture & life science / v.44, no.5, 2010 , pp. 1-8 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 the static bending strength performances of these green tea and wood fibers composite boards were investigated. Static bending strengths of hybrid composite boards were lower than those of control boards and decreased with the increase of green tea content. Also, the strength performances appeared to be somewhat different by resin type used for board manufacture. The hybrid composite boards manufactured from $E_1$ grade urea resin adhesive, which has higher molar ratio of formaldehyde to urea than that of $E_0$ grade one, were 1.08~1.53 times higher in bending modulus of elasticity (MOE) and 1.19~1.82 higher in modulus of rupture (MOR) than that manufactured from $E_0$ grade. And, the differences of MOE and MOR between hybrid composite boards manufactured from $E_0$ grade and $E_0$ grade urea resin adhesive increased with the increase of green tea content. In the case of hybrid composite boards manufactured from $E_1$ grade urea resin adhesive, the MOR was within 0.94~1.03 times the commercial medium density fiberboard. Thus, it was thought that eco-friendly hybrid composite boards with various functionalities and strong strength performances could be manufactured from green tea and wood fibers.
Keywords
Green tea; wood fiber; Urea resin; Hybrid board; Bending modulus of rupture(MOR); Bending modulus of elasticity (MOE); Medium density fiberboard;
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Times Cited By KSCI : 1  (Citation Analysis)
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