Study on ageing process of rubber material for seal: a novel evaluation by means of chemiluminescence under deformation

The life time prediction is always at the forefront of materials researchers. The end of the life of seals is defined when a leakage happened. Until a leak happens, materials gradually degrade due to several factors such as mechanical fatigues, oxidation, temperature, media, and pressure. These factors lead irreversible changes in the physical and chemical property of materials. Especially the deformation conditions to which rubber are subjected have a considerable effect and, in many cases, the decisive effect on their service life. Therefore, in practical, it is important to consider thermal oxidation under stress. However, it is difficult to analyze the rubber oxidation even without stress. The available information on the oxidation of materials under stress is very scarce and mostly qualitative in the previous studies.This paper focuses on the oxidative reaction rate and activation energy under deformation.
The life time prediction is always at the forefront of materials researchers. The end of the life of seals is defined when a leakage happened. Until a leak happens, materials gradually degrade due to several factors such as mechanical fatigues, oxidation, temperature, media, and pressure. These factors lead irreversible changes in the physical and chemical property of materials. Especially the deformation conditions to which rubber are subjected have a considerable effect and, in many cases, the decisive effect on their service life. Therefore, in practical, it is important to consider thermal oxidation under stress. However, it is difficult to analyze the rubber oxidation even without stress. The available information on the oxidation of materials under stress is very scarce and mostly qualitative in the previous studies.This paper focuses on the oxidative reaction rate and activation energy under deformation.