Journal of the Korean Wood Science and Technology

The Korean Society of Wood Science & Technology (한국목재공학회)
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Evaluation of Two Species of Soft Wood Decay Resistance for Heat-Treated Wood Using the Catalyst (H2SO4)

  • Won, Kyung-Rok (College of Agriculture & Life Science, IALS, Gyeongsang National University) ;
  • Hong, Nam-Euy (Department of Development, Samyoung Industrial) ;
  • Jung, Su-Young (Southern Forest Resources Research Center, National Institute of Forest Science) ;
  • Kim, Byung-Ro (Department of Wood and Paper Science, College of Agriculture, Life and Environment Science, Chungbuk National University) ;
  • Byeon, Hee-Seop (College of Agriculture & Life Science, IALS, Gyeongsang National University)
  • Received : 2017.01.13
  • Accepted : 2017.03.01
  • Published : 2017.03.25
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Abstract

This study was conducted to evaluate the resistance of heat-treated wood using the catalyst to decay caused by fungi for sapwood and heartwood of two tree species, Korean red pine (Pinus densiflora) and Japanese larch (Larix kaempferi), respectively. Wood samples were immersed for 10 min in sulfuric acid (7.5%) and then heat-treated at $130^{\circ}C$ for 90 min. Fomitopsis palustris, a brown-rot fungus, was used to examine the decay resistance of Korean red pine and Japanese larch wood. Weight and density of wood from the all conditions increased after heat treatment using the catalyst. Weight loss after decay resistance test was also dropped with a heat treatment. The lowest weight loss indicated at heat-treated heartwood of Japanese larch. Heat treatment using the catalyst effectively increased the resistance of wood to decay caused by fungi.

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References

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Cited by

  1. Evaluation of Decay Resistance for Heat-treated Hardwood Using the Catalyst(H2SO4) vol.52, pp.4, 2018, https://doi.org/10.14397/jals.2018.52.4.1