Effect of Silane Coupling Agent KH550 on Thermal-Oxydative Aging Properties of NR Vulcanizates

Effects of silane coupling agent KH550 on crosslink density and mechanical properties of NR vulcanizates during thermal-oxydative aging was investigated in this paper.The results showed that under same aging condition,the crosslink density and tanδ of KH550-filled NR vulcanizates change slowly with higher retention of physical mechanical properties.The changes in above mentioned properties are more obvious when the content of KH550 increases.