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首页> 外文期刊>Journal of Applied Polymer Science >The effect of oxygen pressure on the kinetics of thermo-oxidative degradation of the copolymer EVA and nitrile-butadiene rubber
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The effect of oxygen pressure on the kinetics of thermo-oxidative degradation of the copolymer EVA and nitrile-butadiene rubber

机译：氧气压力对EVA和丁腈橡胶热氧化降解动力学的影响

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摘要

The results of nonisothermal kinetic analysis of the thermo-oxidative degradation in air and in oxygen of the copolymer EVA and nitrile-butadiene rubber (NBR) are presented. It was observed that similar processes take place at thermooxidative degradation in air as well as in oxygen of both investigated polymeric materials. The first process, which leads to solid products, is followed by thermo-oxidative degradation with the generation of volatile products. It has been shown that the first process of thermo-oxidation occurs at lower temperatures in oxygen than in air. For this process, the nonisothermal kinetic analysis was carried out using the Kissinger method. The obtained results revealed the importance of the oxygen pressure as an accelerator in the thermo-oxidative degradation of copolymer EVA and NBR. (C) 2000 John Wiley & Sons, Inc. [References: 17]
机译：给出了共聚物EVA和丁腈橡胶（NBR）在空气和氧气中热氧化降解的非等温动力学分析结果。观察到两种研究的聚合物材料在空气以及氧气中的热氧化降解时都发生类似的过程。导致固体产物的第一个过程是随后进行热氧化降解并生成挥发性产物。已经表明，热氧化的第一过程在氧气中的温度低于在空气中的温度下发生。对于该过程，使用基辛格方法进行了非等温动力学分析。获得的结果表明氧气压力作为促进剂在共聚物EVA和NBR的热氧化降解中的重要性。 （C）2000 John Wiley＆Sons，Inc. [参考：17]

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