Non-Arrhenius Behavior of Fluorosilicone Rubber Based on Accelerated Aging Test

被引：0
|
作者：
Sun X. [1 ]
Xiong Y. [1 ]
Guo S. [1 ]
机构：
[1] State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute, Sichuan University, Chengdu
来源：
Gaofenzi Cailiao Kexue Yu Gongcheng/Polymeric Materials Science and Engineering | 2018年 / 34卷 / 05期
关键词：
Ageing mechanism; Aging in hot air; Fluorosilicone rubber; Non-Arrhenius behavior;
D O I：
10.16865/j.cnki.1000-7555.2018.05.019
中图分类号：
学科分类号：
摘要：
The aging of fluorosilicone rubber was studied under the thermal aging at 90~210℃. Tensile test and compressive stress relaxation (CSR) measurements were performed to research the effect of temperature and time on mechanical properties. When the variation of elongation at break and compression set is selected as performance indicator, non-Arrhenius behavior is observed with evidence of a significant lowering of the activation energy among the part of accelerated aging temperature. The dynamic mechanical thermal analysis was performed to fluorosilicone rubber. The results show that the aging mechanism of fluorosilicone rubber is different between high temperature and low temperature. The rubber undergoes predominately crosslinking during the early stage of the degradation process and predominately degradation during the latter stage at low temperature. At the higher temperature, degradation is prevailing. © 2018, Editorial Board of Polymer Materials Science & Engineering. All right reserved.
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页码：116 / 120and125
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