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研究了乙烯/醋酸乙烯酯(EVA)二元共聚物和乙烯/醋酸乙烯酯/—氧化碳(E-VACO)三元共聚物的热分解机理和动力学。用 Doyle—Ozawa 积分法处理实验数据,给出分解活化能。结果表明,共单体一氧化碳作为第三组分引入 EVA 共聚物分子链上可以提高其热稳定性。
The thermal decomposition mechanism and kinetics of ethylene / vinyl acetate (EVA) terpolymer and ethylene / vinyl acetate / carbon oxide (E-VACO) terpolymer were studied. The experimental data were processed by the Doyle-Ozawa integral method to give the decomposition activation energy. The results showed that the introduction of comonomer carbon monoxide as the third component into the molecular chain of EVA copolymer can improve its thermal stability.