Browse > Article

Effect of Green Tea and Saw Dust Contents on Static Bending Strength Performance of Hybrid Boards Composed of Wood Fiber, Saw Dust and Green Tea  

Park, Han-Min (Div. of Environmental Forest science, Gyeongsang National Univ.(Insti. of Agric. & Life Sci.))
Lee, Soo-Kyeong (Div. of Environmental Forest science, Gyeongsang National Univ.(Insti. of Agric. & Life Sci.))
Seok, Ji-Hoon (Div. of Environmental Forest science, Gyeongsang National Univ.(Insti. of Agric. & Life Sci.))
Choi, Nam-Kyung (Div. of Environmental Forest science, Gyeongsang National Univ.(Insti. of Agric. & Life Sci.))
Kwon, Chang-Bae (Div. of Environmental Forest science, Gyeongsang National Univ.(Insti. of Agric. & Life Sci.))
Heo, Hwang-Sun (Div. of Environmental Forest science, Gyeongsang National Univ.(Insti. of Agric. & Life Sci.))
Kim, Jong-Chul (Institute of Hadong Green Tea)
Publication Information
Journal of agriculture & life science / v.45, no.6, 2011 , pp. 41-46 More about this Journal
Abstract
In this study, in addition to the green tea-wood fiber hybrid composite boards of previous researches, to make effective use of saw dust of domestic cypress tree with functionalities and application as interior materials, eco-friendly hybrid composite boards were manufactured from wood fiber, green tea and saw dust of cypress tree. We investigated the effect of the component ratio of saw dust and green tea on static bending strength performances. Static bending MOE (modulus of elasticity) was within 0.956~1.18GPa, and showed the highest value in wood fiber : green tea : saw dust = 50 : 40 : 10 of the component ratio, and had the lowest value in 50 : 30 : 20 of component ratio. These values were 2.0~3.1times lower than those of green tea-wood fiber hybrid composite boards reported in the previous researches. The bending MOR (modulus of rupture) showed 8.99~11.5MPa, the change of the bending MOR with component ratio of the factors was the same as that of bending MOE. These values had 1.9~3.5 times lower value than those of green tea-wood fiber hybrid composite boards, and showed the slightly lower values than the MOR of particle boards (PB) and medium density fiberboards (MDF) prescribed in Korean Industrial Standard. Therefore, it is considered that these hybrid composite boards need to improve strength performances by component ratio change, hybrid composite with other materials and adhesive change etc. in order to industrialize the hybrid composite boards.
Keywords
Wood fiber; Green tea; Saw dust; Hybrid composite board; Bending modulus of elasticity(MOE); Bending modulus of rupture(MOR);
Citations & Related Records
Times Cited By KSCI : 4  (Citation Analysis)
연도 인용수 순위
1 Korean Industrial Standard KS F 3104. 2006. Particle board.
2 Korean Industrial Standard KS F 3200. 2006. Fiber board.
3 Lee, B. H., H. S. Kim, S. W. Choi, and H. J. Kim. 2006. Improvement of interfacial adhesion for surface treated rice husk flour-filled polypropylene biocomposites. Mokchae Konghak 34: 38-45.
4 Lee, H. H. and G. U. Kim. 2003. Properties of Clay-wood ceramics from 3 layers-clay-wood particle board. Mokchae Konghak 31: 80-87.
5 Lee, S. N., B. H. Lee, H. J. Kim, S. M. Kim, and Y. G. Eom. 2009. Properties evaluation of bio-composite by content and particle size of bamboo flour. Mokchae Konghak 37: 310-319.
6 Park, H. M., M. Fushitani, K. Sato, T. Kubo, and H.S. Byeon. 2003. Static bending strength performances of cross-laminated woods made with five species. J Wood Sci 49: 411-417   DOI   ScienceOn
7 Park, H. M. and M. Fushitani, K. Sato, and T. Kubo. 2004. Static bending strength performances of woodaluminum hybrid laminated material. Trans. Mat. Res. Soc. Japan 29: 2503-2506.
8 Park, H. M., M. Fushitani ,K. Sato, T. Kubo, and H.S. Byeon. 2006. Bending creep performances of three-ply cross-laminated woods made with five species. J Wood Sci 52: 220-229.   DOI   ScienceOn
9 Park, H. M. and M. Fushitani. 2007. Bending creep property of wood-aluminum hybrid laminated material. Mokuzai Gakkaishi 53: 14-24.   DOI   ScienceOn
10 Park, H. M., S. J. Moon, Y. E. Choi, J. H. Park, and H. S. Byeon. 2009. Static bending strength performances of hybrid laminated wood composed of wood-wood based boards. Mokchae Konghak 37: 546-555.
11 Park, H. M., D. H. Kang, N. R. Lim, S. K. Lee, K. W. Jung, J. C. Kim, and K. H. Cho. 2010a. Effect of green tea content on static bending strength performances of hybrid boards composed of green tea and wood fibers. J. Agric. & Life Sci. 44: 1-8.
12 Park, H. M., D. H. Kang, Y. E. Choi, S. Y. Ahn, H. S. Ryu, and H. S. Byeon. 2010b. Benidng creep performances of hybrid laminated wood composed of wood-wood based boards. Mokchae Konghak 38: 1- 10.
13 Park, H. M., S. K. Lee, J. H. Seok, N. K. Choi, C. B. Kwon, H. S. Byeon, J. K. Yang, and J. C. Kim. 2011. 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. Mokchae Konghak (in submitting).
14 Park, S. B. 2006. Physico-mechanical properties and formaldehyde abatement of particle board mixed with gingko tree leaves. J. Kor. For. En. 25: 28-33.