| 聚丙烯的热降解和燃烧行为 |
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| 引用本文： | 吕明福,刘涛,张师军.聚丙烯的热降解和燃烧行为[J].合成树脂及塑料,2007,24(6):14-17. |
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| 作者姓名： | 吕明福 刘涛 张师军 |
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| 作者单位： | 中国石油化工股份有限公司北京化工研究院,北京,100013;中国石油化工股份有限公司北京化工研究院,北京,100013;中国石油化工股份有限公司北京化工研究院,北京,100013 |
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| 摘 要： | 采用热重分析法对聚丙烯(PP)的热降解行为进行了表征,测定了不同升温速率下PP的热降解过程,得出其热降解活化能为239.58 kJ/mol;用锥形量热仪研究了PP的燃烧行为,随着辐射强度增加,PP的热释放速率增加,质量损失速率加快且分解起始时间提前,热释放总量保持恒定;试样厚度对表征材料的燃烧行为有一定影响。
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| 关 键 词： | 聚丙烯 燃烧行为 锥形量热仪 热降解动力学 |
| 文章编号： | 1002-1396（2007）06-0014-04 |
| 修稿时间： | 2007-05-28 |
Thermal degradation and combustion behavior of polypropylene |
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| Lü Mingfu,Liu Tao,Zhang Shijun.Thermal degradation and combustion behavior of polypropylene[J].China Synthetic Resin and Plastics,2007,24(6):14-17. |
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| Authors: | Lü Mingfu Liu Tao Zhang Shijun |
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| Affiliation: | Beijing Research Institute of Chemical Industry, SINOPEC, Beijing 100013, China |
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| Abstract: | Thermal degradation behavior of polypropylene(PP)was characterized by thermogravimetry(TG).The thermal degradation process of PP was measured at different heating rates;the activation energy of thermal degradation of PP was calculated to be 239.58 kJ/mol.The studies on combustion behaviour of PP by a cone calorimeter reveal that as intensity of incident heat influx rises,the PP's heat release rate and mass loss rate increase,starting time of decomposition shifts forward and total heat release amount remains constant.The thickness of the specimen has certain impact on the combustion behaviour of the material under investigation. |
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| Keywords: | polypropylene combustion behavior cone calorimeter thermal degradation kinetics |
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