Effect of Hydrothermal Aging on the Tribological Performance of Nitrile Butadiene Rubber Seals
Gege Huang, Zhihao Chen, Jian Wu, Ange Lin, Qinxiu Liu, Shouyao Liu, Benlong Su, Youshan Wang- Polymers and Plastics
- General Chemistry
High temperature and humidity affect the tribological performance of nitrile butadiene rubber (NBR) seals, which affects the precise positioning of cylinder systems. Therefore, it is crucial to study the effect of hydrothermal aging on the tribological performance of the NBR seals. In this study, the changes in the tribological performance of the NBR seals under hydrothermal aging conditions were investigated. The results show that the volatilization of additives and the increase in crosslink density of the NBR seals occurs in the hydrothermal aging environment, leading to the deterioration of their surface quality, elastic deformability, and tribological performance. The formation of surface micropores due to additive volatilization is the main factor in the degradation of tribological performance.