Aging and protection of rubber grommets 2
The influence of rubber grommets
Rubber grommets are used in most cases as accessories for mechanical equipment, such as premature damage due to aging, which not only affects the user’s economic benefits, but sometimes causes significant damage to the property. In order to improve the anti-aging properties of rubber and prolong the service life of the products, the research on rubber aging and protection began in the mid-19th century.
These studies include various external factors leading to the mechanism of rubber aging, the development and use of various antioxidants and the mechanism of action of protective rubber aging. After long-term research, not only the role of various external factors on rubber aging and the relationship between them are clarified, but also the mechanism of action of various external factors is fully recognized, and the theoretical basis of protection is found.
For example, the thermal oxidation mechanism of rubber, the action mechanism of ozone, variable-valent metal ions, and the protective mechanism of various antioxidants such as phenols and amines have been widely recognized.
However, there is no consensus on the understanding of the mechanism of action against ozone agents and the mechanism of fatigue aging.
Application of anti-aging agent in rubber grommets
In terms of aging protection of rubber, hundreds of additive-type multifunctional or special anti-aging agents capable of resisting different aging behaviors have been developed, and some have been widely used in production practice.
In order to overcome the shortcomings of easy migration, volatility and short duration of protective anti-aging agents, the development of non-migratory and long-lasting anti-aging agents began in the mid-20th century, and progress has been made so far.
The aging and protection of rubber is a must to consider the design of rubber compound, and the anti-aging agent is one of the four systems of rubber compounding.
It is of great significance to study the internal and external factors causing rubber aging and to master the law of rubber aging, in order to take effective protective measures, delay the aging of rubber, and extend its storage period and product life.