摘要
采用气相色谱定量测量了聚氯乙烯（ＰＶＣ）、乙丙橡胶（ＥＰＲ）和氯磺化聚乙烯 （ＣＳＭ）等线缆绝缘材料经辐照后在不同温度下热老化过程中的 Ｏ２消耗量。对实验数据进行了 反应动力学分析，发现线缆绝缘材料的热氧化降解反应为一级反应。同时获得了不同温度下的反 应常数，并与根据 Ａｒｒｈｅｎｉｕｓ方程计算的理论结果进行了比较。
Oxygen consumption for PVC. EPR and CSM as the cable insulation materials after irradiation and thermal aging were measured by using gas chromatograph in order to study the lifetime estimation. Kinetic analysis of experiment data was made. It is found that thermal oxidative reaction is a first-order reaction under the experiment condition in this work. Rate constants were obtained. Comparison with the theoretical calculated data according to Arrhenius equation was also made. It is thought that the simplified Arrhenius equation is not appropriate as the model for lifetime estimation.
出处
《辐射研究与辐射工艺学报》
CAS
CSCD
北大核心
2000年第1期68-72,共5页
Journal of Radiation Research and Radiation Processing
关键词
绝缘材料
PVC
EPR
热氧化降解
反应动力学分析
Polyvinyl chloride, Ethylene-propylene copolymer, Chlorosulfonated polyethylene, Thermal oxidative degradation, Kinetic analysis, Gas chromatograph, r-irradiation
