摘要
通过热重分析仪研究了不同氯硫含量的氯磺化聚乙烯(CSM)在不同升温速率下的热分解行为。采用Ozawa及Kissinger方程研究了氯磺化聚乙烯的降解动力学,研究发现CSM的热降解过程包括两个主要失重平台,而且氯磺化聚乙烯的热分解反应不是一级反应。Ozawa方程计算的活化能随着产物中氯硫含量的增加从304.661kJ/mol下降到292.573kJ/mol。Kissinger方程计算的活化能分别为282.785kJ/mol和274.176kJ/mol。ln(β/Tm2)对1/Tm作图得一直线,证明氯磺化聚乙烯的热分解符合无规分解模型。
The Chlorosulfonated polyethylene （CSM） with different chlorine and sulfur elements content were studied at several heating in air rates by thermogravimetric analysis （TGA）. The degradation kinetics of CSM was analyzed by Ozawa and Kissinger equation. The TGA results indicate that the degradation of GSM under goes two steps. The thermal degradation of CSM is not a first order reaction. The activation energy of CSM decreases from 304.661 ld/mol to 292.573 kJ/mol and from 282.785 kJ/mol to 274. 176 kJ/mol with chlorine and sulfur elements content increasing by Ozawa method and Kissinger equation, respectively. The thermal degradation of CSM accords with the model of random degradation
出处
《高分子材料科学与工程》
EI
CAS
CSCD
北大核心
2010年第2期99-102,共4页
Polymer Materials Science & Engineering
基金
吉林省科技厅项目(20086034-2)
