| 从一条PFA热降解DSC曲线推算其等温热稳定性 |
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| 引用本文： | 邹文樵 吕家申. 从一条PFA热降解DSC曲线推算其等温热稳定性[J]. 华东理工大学学报(自然科学版), 1997, 23(6): 731-735 |
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| 作者姓名： | 邹文樵 吕家申 |
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| 作者单位： | [1]华东理工大学化学系 [2]上海树脂厂 |
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| 摘 要： | 利用一条非等温的ＤＳＣ曲线，从研究ＰＦＡ热降解的最可几反应机制及其活化能入手，推导出在等温条件下反映热稳定性的降解率，温度和时间之间的简单关联式。结合红外光谱对ＰＦＡ热降解过程作初步探讨。
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| 关 键 词： | 四氟乙烯 共聚物 热降解 PFA 热稳定性 DSC曲线 |
Calculation of PFA Isothermal Thermal Stability from a DSC Curve of Its Thermal Degradation |
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| Zou Wenqiao ,Gao Yongyu,Feng Yangjie. Calculation of PFA Isothermal Thermal Stability from a DSC Curve of Its Thermal Degradation[J]. Journal of East China University of Science and Technology, 1997, 23(6): 731-735 |
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| Authors: | Zou Wenqiao Gao Yongyu Feng Yangjie |
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| Affiliation: | Zou Wenqiao *,Gao Yongyu,Feng Yangjie |
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| Abstract: | The mechanism and kinetic parameters of the non isothermal thermal degradation of PFA were studied by a differential scanning calorimetry (DSC) curve and infrared spectra.According to the results of alternation of non isothermal degradation with isothermal degradation the simple equation of the relationship between fraction degraded,time and temperature under the isothermal condition is introduced. |
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| Keywords: | PFA(tetrafluoroethylene perfluorinated alkey vinye copolymer) thermal degradation thermal analysis kinetics of reaction thermal stability |
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