Differential calometric analysis of wood and wood components
Differential calometric analysis of wood and wood components
复制标题
木材和木材成分的差热分析
DOI：
10.1007/bf00353679
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发表时间：
1971
影响因子：
3.4
通讯作者：
F. Beall
中科院分区：
文献类型：
--
作者：
F. Beall
用差示量热法（DCA）研究了纤维素、半纤维素、木质素制剂和木材在25° C至800° C范围内的热解。测试样品包括粉末状和滤纸纤维素;硬木木聚糖;软木半乳葡甘露聚糖、压缩木半乳聚糖和阿拉伯半乳聚糖;合成（DHP）、硫酸、Björkman、Brownell和纤维素酶木质素;以及未提取和提取的硬木和软木。从DCA热转变区域确定反应热。在每个半纤维素和木质素样品的热谱图之间发现了明显的差异。虽然木材种类不能热分离，硬木和软木热谱不同，因为半纤维素降解模式。
The prolysis of cellulose, hemicelluloses, lignin preparations, and wood was studied by differential calorimetric analysis (DCA) for the range of 25° to 800° C. The test samples included powdered and filter paper celluloses; hardwood xylan; softwood galactoglucomannans, compression wood galactan, and arabinogalactan; a synthetic (DHP), sulfuric acid, Björkman, Brownell, and cellulase lignins; and unextracted and extracted hardwoods and softwoods. Heats of reaction were determined from the DCA thermal transition areas. Distinct differences were found between the thermograms of each hemicellulose and lignin sample. Although wood species could not be separated thermally, hardwood and softwood thermograms differed because of the hemicellulose degradation pattern.