水热老化对丁腈橡胶密封件摩擦学性能的影响

Effect of Hydrothermal Aging on the Tribological Performance of Nitrile Butadiene Rubber Seals.

作者信息

Huang Gege, Chen Zhihao, Wu Jian, Lin Ange, Liu Qinxiu, Liu Shouyao, Su Benlong, Wang Youshan

机构信息

Center for Rubber Composite Materials and Structures, Harbin Institute of Technology, Weihai 264209, China.

Guizhou Tire Co., Ltd., Guiyang 550201, China.

出版信息

Polymers (Basel). 2023 Dec 26;16(1):81. doi: 10.3390/polym16010081.

DOI:10.3390/polym16010081

PMID:38201746

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC10780487/

Abstract

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.

摘要

高温高湿会影响丁腈橡胶（NBR）密封件的摩擦学性能，进而影响气缸系统的精确定位。因此，研究水热老化对NBR密封件摩擦学性能的影响至关重要。在本研究中，对水热老化条件下NBR密封件的摩擦学性能变化进行了研究。结果表明，在水热老化环境中，NBR密封件会出现添加剂挥发和交联密度增加的情况，导致其表面质量、弹性变形能力和摩擦学性能变差。添加剂挥发导致表面微孔的形成是摩擦学性能退化的主要因素。