摘要
研究了空气气氛下马尾松和楠木的树叶、树皮和树干试样的热解过程 ,发现每种试样的热解均包含两步主要的失重过程 ,在 6 0 0℃时总失重均达90 %以上。利用积分方法建立了适用于所有试样的两阶段一级动力学模型 。
The thermal decomposition of the leaf, bark and wood of masson pine (Pinus massoniana) and nanmao (Michelia macclurei) have been studied by using dynamic thermogravimetry under air atmospheric conditions. It is found that in all cases two main weight loss processes took place and the total weight loss at 600℃ was over 90%. By means of the integral method, the weight loss curves obtained for all cases are all best described by a two stage first order kinetic model, which is justified by the reconstruction of the thermal analysis data. The thermal stability of the leaf, bark, and wood for each material is estimated and discussed, and it is found that wood has the lowest thermostability.
出处
《火灾科学》
CSCD
2001年第3期125-134,共10页
Fire Safety Science
关键词
热解
木材
动力学
空气气氛
表观现象
thermogravimetry
wood
leaf
bark
thermostability
decomposition kinetics
