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Penetration of ACQ Treatment and its Effect of Degradation on Wood Tissues (Structure)

ACQ 약제의 목재 내 침투 및 부후 특성에 미치는 목재 조직의 영향

  • Lee, Hyun-Mi (Department of Forest Products, Korea Forest Research Institute) ;
  • Lee, Dong-Heub (Department of Forest Products, Korea Forest Research Institute) ;
  • Hwang, Won-Joung (Department of Forest Products, Korea Forest Research Institute)
  • Received : 2013.10.15
  • Accepted : 2013.11.22
  • Published : 2013.11.25

Abstract

To obtain the basic information on wood preservative process using copper, the penetration ACQ-2 preservative agent into Douglas fir wood and its degradational characteristics were investigated. Douglas fir is known to be difficult for preservative agent injection. To find the hindrance factor of the preservatives movement, the ray height, ray density, and length of tracheid were measured and observed by a stereoscopic microscope and scanning electron microscope. The results were compared in the well-penetrated parts of preservatives and insufficient parts. There were no significant differences in height, length, and density between both parts, except for the pits of the wood elements observed in SEM micrograph. More declosed pits were found in the well-penetrated parts of preservatives. Decay characteristics of wood specimen treated with various ACQ concentrations by brown-rot fungi was observed by an optical microscope. The decayed properties of tracheid, rays, and resin canals was found in the non-treated wood specimens and it was also found that some extent of preservatives concentration is necessary to protect the decay.

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