Journal of the Korean Wood Science and Technology

  • 제46권3호
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  • Pages.285-296
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  • 2018
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  • 1017-0715(pISSN)
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  • 2233-7180(eISSN)
한국목재공학회 (The Korean Society of Wood Science & Technology)
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저온 열처리 목재 표면의 분광학적 특성

Spectroscopic Characterization of Wood Surface Treated by Low-Temperature Heating

  • 김강재 (경북대학교 농업과학기술연구소) ;
  • 나기백 (경북대학교 임산공학과) ;
  • 류지애 (경북대학교 임산공학과) ;
  • 엄태진 (경북대학교 산림과학조경학부 임산공학전공)
  • Kim, Kang-Jae (Agricultural Science and Technology Research Institute, Kyungpook National University) ;
  • Nah, Gi-Baek (Department of Wood Science and Technology, College of Agriculture and Life Sciences, Kyungpook National University) ;
  • Ryu, Ji-Ae (Department of Wood Science and Technology, College of Agriculture and Life Sciences, Kyungpook National University) ;
  • Eom, Tae-Jin (Major in Wood Science and Technology, School of Forestry, Sciences and Landscape Architecture, College of Agriculture and Life Sciences, Kyungpook National University)
  • 투고 : 2018.04.30
  • 심사 : 2018.05.18
  • 발행 : 2018.05.25
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초록

ISPM No. 15에 의거한 열처리 목재의 검증을 위한 연구로서 열처리 목재 표면의 분광학적 특성을 분석하였다. IR 스펙트럼 상에서는 다양한 작용기들이 확인되지만 수종간, 열처리 시간 및 보관 기간에 따른 특별한 차이를 발견하기 어려웠다. HBI(hydrogen-bonding intensity)는 보관 기간에 따른 열처리 목재의 변화는 관찰할 수 있지만 열처리 시간에 따른 변화는 관찰하기 어려웠다. 하지만 PCA score plot 상에서 수종 내에서 60분 혹은 90분의 열처리 시간에 따라 목재의 분류가 가능하였다. PCA에서 열처리 목재의 분류의 기준은 목재 내 리그닌의 방향족 환과 셀룰로오스의 C-H bending이었으며 이들 성분에 의해 ISPM No. 15로 열처리된 목재를 분류할 수 있었다.

As a study for the verification of heat treated wood according to ISPM No. 15, the spectroscopic characteristics of the heat treated wood surface were analyzed. Various functional groups were observed on the IR spectrum, but it was difficult to find any particular difference between wood species, heat treatment time and storage period. HBI (hydrogen-bonding intensity) shows the change of the heat treated wood according to the storage time, but the change of wood with the heat treatment time was hard to be observed. On the PCA score plot, however, it was possible to sort the wood according to the heat treatment time of 60 minutes or 90 minutes in the species. The standards for classification of heat-treated wood in PCA were aromatic rings in lignin and C-H bending in cellulose, and these components were able to classify heat-treated wood by ISPM No. 15.

키워드

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