热解
动力学
热重分析
热重分析
等温过程
甲醛
材料科学
苯酚
碳纤维
活化能
化学工程
化学
热力学
有机化学
复合材料
无机化学
物理
量子力学
工程类
复合数
作者
Haiyun Jiang,Jigang Wang,WU Shen-qing,Baosheng Wang,Zhangzhong Wang
出处
期刊:Carbon
[Elsevier]
日期:2010-02-01
卷期号:48 (2): 352-358
被引量:129
标识
DOI:10.1016/j.carbon.2009.09.036
摘要
The potential damage during the pyrolysis of phenol–formaldehyde (PF) resin in the manufacturing of carbon/carbon components is serious. Accurately modeling the kinetics of the pyrolysis reaction can lead to improvements in processing. To study the pyrolysis kinetics of PF resin, non-isothermal pyrolysis kinetics is investigated using thermogravimetric analysis (ТGA) at controlled heating rates. The research indicates that the pyrolysis process consists of three consecutive and overlapping stages. PEAKFIT was employed to separate overlapping regions, and then pyrolysis kinetic triplet of PF resin is calculated. With the determined apparent activation energies, the most probable mechanism functions and the corresponding pre-exponential factor, the model agrees well with the experimental data.
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