Infrared Photoacoustic Spectra of Japanese Cedar (Cryptomeria japonica D. Don) Wood and Bark Heat-Treated at Temperatures Ranging from 200℃ to 1100℃
Infrared Photoacoustic Spectra of Japanese Cedar (Cryptomeria japonica D. Don) Wood and Bark Heat-Treated at Temperatures Ranging from 200℃ to 1100℃
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200℃~1100℃热处理的日本柳杉（Cryptomeria japonica D. Don）木材和树皮的红外光声光谱
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发表时间：
2003
期刊：
影响因子：
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通讯作者：
S. Yamauchi
中科院分区：
文献类型：
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作者：
S. Yamauchi
日本柳杉（Cryptomeria japonica D.）Don）在氮气氛中在宽范围的温度（200 - 1100 °C）下热解。热处理样品的红外光谱记录的光声方法。木材和树皮的光声光谱轮廓非常相似，随着热处理温度（HTT）的升高，光谱特征发生了明显的变化。特别是在200-300 o e和600-700°C的HTT范围内发生了两次剧烈的光谱变化。结果表明，600°C热处理后的柳杉中仍保留有O-H键和e-H键。在700 ° E或更高处获得的光谱中没有发现可归因于含有a或H原子的原子团的振动带。
Wood (xylem) and bark of Japanese cedar (Cryptomeria japonica D. Don) were pyrolyzed over a wide range of temperatures (200 - HOO°C) in a nitrogen atmosphere. The infrared spectra of the heat-treated samples were recorded by a photo acoustic method. The photo acoustic spectral contours of wood and bark were very similar, showing several noticeable changes of spectral features with increasing heat-treatment temperature (HTT). In particular, two drastic spectral changes occurred in the HTT ranges of 200-300 o e and 600-700°C. It was indicated that O-H and e-H bonds remain in Japanese cedar heat-treated to 600°C. No vibrational band attributable to atomic groups containing a or H atoms could be found in the spectra obtained at 700 0 e or more.