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首页> 外文期刊>African Journal of Biotechnology >Effects of heat treatment on density, dimensional stability and color of Pinus nigra wood
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Effects of heat treatment on density, dimensional stability and color of Pinus nigra wood

机译：热处理对黑松木材密度，尺寸稳定性和颜色的影响

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The purpose of this study was to evaluate the effect of heat treatment on some physical properties and color change of?Pinus nigra?wood which has high industrial use potential and large growing stocks in Turkey. Wood samples which comprised the material of the study were obtained from an industrial plant. Samples were subjected to heat treatment process of varying temperatures (190, 200, 212 and 225°C) and durations (60, 120 and 180 min). After these processes, density and swelling of the wood samples were tested in comparison with untreated ones. The results show that density decreased (2.57 to 12.6%) as treatment temperature and duration increased. Dimensional stability was improved (up to 66%) with the extent of the circumstances mainly depending on treatment temperature. Color became uniformly darker with increasing temperature and durations. Temperature had clearly greater influence on investigated properties than duration.
机译：这项研究的目的是评估热处理对黑松木材某些物理性质和颜色变化的影响，黑松木材在土耳其具有很高的工业利用潜力和大量的生长种群。构成研究材料的木材样品是从一家工厂获得的。对样品进行不同温度（190、200、212和225°C）和持续时间（60、120和180分钟）的热处理。经过这些过程后，与未处理的样品相比，测试了木材样品的密度和溶胀度。结果表明，密度随处理温度和持续时间的增加而降低（2.57至12.6％）。在很大程度上取决于处理温度的情况下，尺寸稳定性得以改善（高达66％）。随着温度和持续时间的增加，颜色均匀变暗。温度对研究性质的影响显然比持续时间更大。

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