| 热分析法研究聚全氟乙丙烯非等温裂解反应动力学 |
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| 引用本文： | 邹文樵,马元根.热分析法研究聚全氟乙丙烯非等温裂解反应动力学[J].化学研究与应用,1993,5(3):19-24. |
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| 作者姓名： | 邹文樵 马元根 |
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| 作者单位： | 华东化工学院化学系，华东化工学院化学系，华东化工学院化学系，上海南汇工业学校 上海 200237，上海 200237，上海 200237 |
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| 摘 要： | 本文从非等温差示扫描量热(DSC)曲线研究聚(?)氟乙丙烯(FEP)在空气中热裂解过程分为两个阶段的机制及其微分动力学方程。利用峰形指数确定的两个阶段的裂解反应级数,用多项式回归了相应的裂解活化能,指前因子随裂解率变化的规律及其补偿效应。
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| 关 键 词： | 热裂解 化学动力学 聚全氟乙丙烯 |
STUDY ON NON-ISOTHERMAL DIFFERENTIAL KINETICS OF THERMAL DEGRATION FOR CF_2CF_2/CF_3CFCF_2 COPOLYMER BY THERMAL ANALYSIS METHOD |
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| Zou Wengiao Wang Ling Feng Yangjie.STUDY ON NON-ISOTHERMAL DIFFERENTIAL KINETICS OF THERMAL DEGRATION FOR CF_2CF_2/CF_3CFCF_2 COPOLYMER BY THERMAL ANALYSIS METHOD[J].Chemical Research and Application,1993,5(3):19-24. |
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| Authors: | Zou Wengiao Wang Ling Feng Yangjie |
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| Abstract: | The differential kinetics equations and mechanisms of thermal degradation with two stages for copolymer of tetra-fluoroethylene and hexafluoropropylene, FEP, were studied by non-isothermal differential scanning calorimetry (DSC). The orders of degradation reactions were determined with shap index of DSC curves. The relationship between activation energys(or preexponential factors) and fractions degraded were regressed with multinomials. In addition,The interdependence between kinetics parameters is expressed as compensation equation. |
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| Keywords: | fluorocarbon polymers thermal degradation thermal analysis chemical kinetics |
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