Journal of the Korea Furniture Society (한국가구학회지)

Korea Furniture Society (한국가구학회)
권호 표지

Investigation on the Dimensional Stability of Acetylated Larch (Larix kaempferi) Small Square

아세틸화처리 낙엽송(Larix kaempferi) 소형 각재의 치수안정성 조사

  • Lee, Won-Hee (Department of Wood Science and Technology, Kyungpook National University) ;
  • Kang, Ho-Yang (Department of Bio-based Materials, Chungnam National University)
  • Received : 2016.09.22
  • Accepted : 2016.10.23
  • Published : 2016.10.25
Download PDF
⟨ Previous Next ⟩

Abstract

It has been known that acetylation improves the dimensional stability of wood. Liquid phase acetylation is more popular than gas-phase acetylation for the effectiveness of weight gain of wood. In this study the specimens of domestic red and Korean pines are acetylated in liquid phase and their physical properties, such as density, bending strength, anti-hygroscopicity etc., are analyzed. Acetylation increases the average weights and volume of larch specimens by 11.4% and 3.4%, respectively, and their average oven-dry densities are increased by $0.03g/cm^3$. Acetylation does not influence on Modulus of Rupture (MOR) and Modulus of Elasticity (MOE). The average Percentage Reduction in Hygroscopicity (PRH) and average Percentage Reduction in Water soaking (PRW) of larch specimens are respectively 20.2% and 20.8%. Thus it can be concluded that acetylation improves the dimensional stability of larch specimens.

Keywords

References

  1. Andris, M. and E. Buksans. 2009. Fire performance characteristics of acetylated ash (Fraxinus excelsior L.) wood. Wood Material Science & Engineering 4(1-2): 76-79. https://doi.org/10.1080/17480270903315580
  2. Bryne, L. E. and M. E. P. Waelinder. 2010. Ageing of modified wood. Part 1: Wetting properties of acetylated, furfurylated, and thermally modified wood. Holzforschung 64(3): 295-304. https://doi.org/10.1515/HF.2010.040
  3. Dunningham, E. A. 2012. Kinetic studies of the acetylation reaction of small Pinus radiata blocks. Eur. J. Wood Prod. 70(6): 857-863. https://doi.org/10.1007/s00107-012-0632-9
  4. Dunningham, E. A., D. V. Plackett, and A. P. Singh. 1992. Weathering of chemically modified wood. Natural weathering of acetylated raidata pine: preliminary results. Holz als Roh und Werkstoff 50(11): 429-432. https://doi.org/10.1007/BF02662780
  5. Evans, P. D., A. F. A. Wallis, and N. L. Owen. 2000. Weathering of chemically modified wood surfaces. Natural weathering of Scots pine acetylated to different weight gains. Wood Science and Technology 34(2): 151-165. https://doi.org/10.1007/s002260000039
  6. Feist, W. C., R. M. Rowell, and W. D. Ellis. 1991. Moisture sorption and accelerated weathering of acetylated and methacrylated aspen. Wood and Fiber Science 23(1): 128-136.
  7. Futemma, Y. and E. Obataya. 2012. Non-uniform reaction of solid wood in vapor-phase acetylation. Journal of Wood Science 58(4): 336-341. https://doi.org/10.1007/s10086-012-1255-9
  8. Han, G.-S. and N.-S. Cho. 1996. Dimensional change of acetylated softwood. Journal of the Korean Wood Science and Technology 24(4): 4040-4046.
  9. Hill, C. A. S. 2009. Why does acetylation protect wood from microbiological attack? Wood Material Science & Engineering 4(1-2): 37-45. https://doi.org/10.1080/17480270903249409
  10. Hill, C. A. S., N. S. Cetin, and N. Ozmen. 2000. Potential Catalysts for the Acetylation of Wood. Holzforschung 54(3): 269-272. https://doi.org/10.1515/HF.2000.045
  11. Hill, C. A. S. and A. N. Papadopoulos. 2002. The Pyridine-Catalysed Acylation of Pine Sapwood and Phenolic Model Compounds with Carboxylic Acid Anhydrides. Determination of Activation Energies and Entropy of Activation. Holzforschung 56(2): 150-156. https://doi.org/10.1515/HF.2002.025
  12. Kang, H.-Y. and K.-Y. Lee. 1997. Effect of acetylation on ultrasonic velocity of bamboo. Journal of the Korean Wood Science and Technology 25(3): 8-15.
  13. Kang, H.-Y. and J. Lu. 2005. Comparison of Longitudinal Liquid Permeabilities of Sapwood Specimens Taken from Pinus koraiensis Boards Treated by Steaming and Various Drying Methods. Journal of the Korean Wood Science and Technology 33(6): 17-24.
  14. Kim, N.-H. and S.-M. Kwon. 2006. Appearance pattern of resin canals in Pinus koraiensis and Larix kaempferi. Journal of the Korean Wood Science and Technology 34(1): 1-6.
  15. LEE, W.-H., S.-H. Hong, and H.-Y. Kang. 2015. Investigation on the Physical Properties of Acetylated Domestic Softwoods. Journal of the Korean Wood Science and Technology 43(4): 429-437. https://doi.org/10.5658/WOOD.2015.43.4.429
  16. Matsunaga, M., Y. Kataoka, H. Matsunaga, and H. Matsui. 2010. A novel method of acetylation of wood using supercritical carbon dioxide. Journal of Wood Science 56(4): 293-298. https://doi.org/10.1007/s10086-009-1098-1
  17. Morozovs, A. and E. Buksans. 2009. Fire performance characteristics of acetylated ash (Fraxinus excelsior L.) wood. Wood Material Science & Engineering 4(1-2): 76-79. https://doi.org/10.1080/17480270903315580
  18. Pandey, K. K. and K. Srinivas. 2015. Performance of polyurethane coatings on acetylated and benzoylated rubberwood. Eur. J. Wood Prod. 73(1): 111-120. https://doi.org/10.1007/s00107-014-0860-2
  19. Papadopoulos, A. N. 2006a. Pyridine-catalyst acetylation of pinewood: influence of mature sapwood vs juvenile wood. Holz als Roh- und Werkstoff 64(2): 134-136. https://doi.org/10.1007/s00107-005-0056-x
  20. Papadopoulos, A. N. 2012. Natural durability of acetylated OSB in ground stake test: total decay after 102 months of testing. Eur. J. Wood Prod. 70(1-3): 397. https://doi.org/10.1007/s00107-011-0547-x
  21. Papadopoulos, A. N. and P. Tountziarakis. 2011. The effect of acetylation on the Janka hardness of pine wood. Eur. J. Wood Prod. 69(3): 499-500. https://doi.org/10.1007/s00107-010-0484-0
  22. Papadopoulos, A. N. 2006b. Decay resistance in ground stake test of acetylated OSB. Holz als Rohund Werkstoff 64(3): 245-246. https://doi.org/10.1007/s00107-006-0110-3
  23. Rowell, R. M., R. E. Ibach, J. Ibach, and T. Nilsson. 2009. Understanding decay resistance, dimensional stability and strength changes in heat-treated and acetylated wood. Wood Material Science & Engineering 4(1-2): 14-22. https://doi.org/10.1080/17480270903261339
  24. Rowell, R. M., R. Simonson, S. Hess, D. V. Plackett, D. Cronshaw, and E. Dunningham. 1994. Acetyl distribution in acetylated whole wood and reactivity of isolated wood cell-wall components to acetic anhydride. Wood and Fiber Science 26(1): 11-18.
  25. Stamm, A. J. 1964. Wood and Cellulose Science. The Ronald Press Company, New York.