Journal of the Korean Wood Science and Technology

The Korean Society of Wood Science & Technology (한국목재공학회)
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The Mechanical Properties of Heat-Compressed Radiata Pine (Pinus radiata D.Don) - Effect of Press Temperature & Time -

열압밀화 라디에타 소나무재의 역학적 특성

  • Hwang, Sung-Wook (Dept. of Wood Science & Technology, College of Agriculture & Life Sciences, Kyungpook National University) ;
  • Lee, Won-Hee (Dept. of Wood Science & Technology, College of Agriculture & Life Sciences, Kyungpook National University)
  • 황성욱 (경북대학교 농업생명과학대학 임산공학과) ;
  • 이원희 (경북대학교 농업생명과학대학 임산공학과)
  • Received : 2011.04.07
  • Accepted : 2011.06.07
  • Published : 2011.07.25
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Abstract

The mechanical properties of heat-compressed Radiata pine (Pinus radiata D.Don) by compression temperature and time were investigated. The compressive strength and bending strength of heat-compressed wood increased with increasing compression temperature and time. But the compressive strength and bending strength decreased with press temperature $220^{\circ}C$. It was considered due to thermal degradation during high temperature conditions. The surface hardness of heat-compressed wood increased with increasing compression temperature. However, the effect of compression time was negligible. The nail holding power was not affected by compression temperature and time.

본 연구에서는 압체온도와 시간에 따른 열압밀화 라디에타 소나무재의 역학적 특성을 조사하였다. 종압축강도와 휨강도는 압체온도와 시간의 증가와 함께 증가하였다. 그러나 압체온도 $220^{\circ}C$에서는 열화로 인해 오히려 감소된 값을 나타내었다. 표면경도는 압체온도의 증가와 함께 증가하였으며, 압체시간이 표면경도에 미치는 영향은 미약하였다. 못뽑기저항의 경우 접선단면의 저항력이 가장 높았으며, 압체온도와 시간에 의한 영향은 거의 나타나지 않았다.

Keywords

References

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