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首页> 外文期刊>Canadian Journal of Pure and Applied Sciences >THE EFFECTS OF HOT OIL TREATMENT PROCESS ON THE CHEMICAL, COLOUR AND STRENGTH PROPERTIES ON 15-YEAR-OLD CULTIVATED ACACIA HYBRID
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THE EFFECTS OF HOT OIL TREATMENT PROCESS ON THE CHEMICAL, COLOUR AND STRENGTH PROPERTIES ON 15-YEAR-OLD CULTIVATED ACACIA HYBRID

机译：热油处理工艺对15岁栽培金合欢杂草化学，颜色和强度特性的影响

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摘要

The effects of hot oil treatment on the chemical, colour and strength properties of 15-year-old cultivated Acacia hybrid were investigated. Logs of A. hybrid were harvested and cut at the bottom, middle and top sections. The wood sections were treated in the hot oil treatment process using palm oil at temperatures of 180, 200 and 220°C for durations of 30, 60 and 90 min. The hot oil treatment process causes some modification in the wood features especially in the chemical constituents, colour appearances and strength properties of A. hybrid. Parameters such as temperatures and treatment time were closely monitored as they influence the chemical, colour and strength changes in the treated wood. The degradation in holocellulose, cellulose, and hemicellulose contents was recognized when acacia woods were exposed to oil thermally modified process. Holocellulose and celulose degraded with the increasing of treatment temperature and duration of heating exposure, while lignin showed the increment in content through this treatment. The colour changes in the sap and heartwood were measured using a Minolta Chroma-meter CR-310 and the results are presented in the CIE L*a*b* colour co-ordinates system. The results show that the colour of the treated sapwood can be improve to match the colour of the natural A. hybrid heartwood. The strength properties of the oil heat treated A. hybrid wood decreases in values of both MOR and MOE throughout the treatment process. The decreases in values were influenced by temperature and duration of the treatment.
机译：研究了热油处理对15岁栽培相思树杂交种化学，颜色和强度特性的影响。收获杂种的原木并在底部，中部和顶部切割。在热油处理过程中，使用棕榈油在180、200和220°C的温度下对木材进行了30分钟，60分钟和90分钟的处理。热油处理过程会导致木材特征发生某些变化，特别是杂种曲霉的化学成分，颜色外观和强度特性。温度和处理时间等参数会受到密切监控，因为它们会影响处理后木材的化学，颜色和强度变化。当相思木暴露于油热改性过程中时，可以确认全纤维素，纤维素和半纤维素含量的降低。随着处理温度和暴露时间的延长，纤维素和纤维素降解，而木质素通过该处理显示含量增加。使用Minolta色度计CR-310测量汁液和心材的颜色变化，并将结果显示在CIE L * a * b *颜色坐标系中。结果表明，处理后的边材的颜色可以得到改善，以匹配天然曲霉杂种心材的颜色。在整个处理过程中，经过油热处理的A.杂种木材的强度特性的MOR和MOE值均降低。值的降低受温度和治疗时间的影响。

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