Effect of stress relaxation on accelerated physical aging of hydrogenated nitrile butadiene rubber using time-temperature-strain superposition principle

被引：20

作者：

Peng Q. ^{[1
]}

Zhu Z. ^{[1
]}

Jiang C. ^{[1
]}

Jiang H. ^{[1
]}

机构：

[1] Applied Mechanics and Structure Safety Key Laboratory of Sichuan Province, School of Mechanics and Engineering, Southwest Jiaotong University, Chengdu

来源：

Advanced Industrial and Engineering Polymer Research | 2019年 / 2卷 / 02期

基金：

中国国家自然科学基金;

关键词：

Accelerated aging; HNBR; Stress relaxation; Time-temperature-strain superposition principle;

D O I：

10.1016/j.aiepr.2019.03.002

中图分类号：

学科分类号：

摘要：

While the stress relaxation is a common phenomenon for polymers, its effect on the stress/strain accelerated aging of the hydrogenated nitrile butadiene rubber (HNBR) cannot be ignored. In this paper, the aging tests of HNBR at various temperature and strain levels were performed. To consider the influence of relaxation behavior during the accelerated aging process under external strains, a modified time-temperature-strain superposition principle considering stress relaxation (TTSSP-R) was proposed. With the general Maxwell model and the constructed master curve of relaxation modulus, the effect of stress relaxation on accelerated aging can be described. It was demonstrated that the proposed TTSSP-R approach provides an accurate evaluation of physical aging of HNBR with the consideration of stress relaxation. It could help the material designer to better understand the long-term performance and reliability of rubber components. © 2019 Kingfa SCI. & TECH. CO., LTD.

引用

页码：61 / 68

页数：7