采用三种不同的动力学分析方法,即Freeman方法、Flynn - Wall - Ozawa以及Kissinger方法对不同类型聚乙烯的热分解动力学进行了探讨.结果表明,Flynn - Wall - Ozawa法Ⅰ、Friedman法的测试结果与三者聚乙烯的结构特征较吻合,不同聚乙烯降解活化能的大小顺序为HDPE＞ LLDPE＞ LDPE.
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