弹性体部件的使用寿命在很大程度上取决于其老化过程。使用过程中,机械动态(疲劳)、氧化过程、温度、紫外光(光氧化)和腐蚀性介质的作用均会导致弹性体材料物理、化学性能上不可逆转的变化,常常导致部件过早地出现故障。在制造过程中,混炼、硫化以及二次硫化工艺中使材料处于热氧老化应力作用下,导致一定程度上的先期老化。除了聚合物的选取外,老化过程主要取决于所用防老剂,如对苯二胺或取代酚类物质。少有研究涉及交联和填料对热氧老化的影响。本文主要研究以下几方面: The service life of the elastomer part depends very much on its aging process. The use of mechanical dynamics (fatigue), oxidation, temperature, UV (photooxidation) and corrosive media can lead to irreversible physical and / or chemical changes in elastomeric materials, often leading to premature component appearance malfunction. In the manufacturing process, the materials are subjected to thermo-oxidative aging stress in the process of mixing, vulcanization and secondary vulcanization, leading to a certain degree of pre-aging. In addition to polymer selection, the aging process depends mainly on the antioxidant used, such as p-phenylenediamine or substituted phenolic compounds. Few studies have dealt with the effects of cross-linking and filler on thermo-oxidative aging. This article mainly studies the following aspects: