• Title/Summary/Keyword: low pressure steam explosion treating

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Effect of Low Pressure Steam Explosion Treatment on Prevention of Resin Exudation from Wood under High Temperature Surroundings (저압증기폭쇄(低壓蒸氣爆碎)처리가 고온영역(高溫領域)하에서의 목재(木材) 수지삼출(樹脂渗出) 예방에 미치는 영향)

  • Lee, Nam-Ho;Park, Hee-Jun;Li, Chengyuan;Jin, Young-Moon
    • Journal of the Korean Wood Science and Technology
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    • v.32 no.2
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    • pp.9-18
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    • 2004
  • This study was carried out to find the efficient methods for preventing resin exudation from spruce board during high temperature environment service.In the dry-air oven test, in-use temperature related to resin exudation of 110℃ could be obtained by the appropriate kiln drying without any special treatment, and the in-use temperature of the radio-frequency/vacuum (RF/V)-dried boards was about 20℃ higher than that of the conventional kiln-dried boards.In the autoclave test, resin exudation was not found from any board dried in the conventional kiln and in the RF/V kiln after the low pressure steam explosion (SE) treating, while for the control resin exudations were more severe in the autoclave test above 130℃ than in the dry-air oven test. It, therefore, would be suggested that resin exudation during high temperature service condition can be prevented more effectively by super-heated steaming green boards than by high-temperature drying boards with low moisture.