High fluorine content fluororubber(FKM)was used as the research object,the high temperature medium resistance of high fluorine con-tent FKM vulcanizates in a variety of aero-engine lu-bricanting oils was investigated,and the changes in physical and mechanical properties of high fluorine content FKM vulcanizates caused by different types of lubricanting oils were studied.The results showed that the high fluorine content FKM vulcanizates could still maintain good compression resilience after aging in lubricating oil at 200 ℃ for 72 h,the volume change rate was lower than 12％,the mechanical properties declined slightly,and the Shore A hard-ness decreased significantly.The mechanical pro-perty attenuation and volume change rate of high fluorine content FKM vulcanizate were different for different kinds of oil.The corrosion of lubricating oil on high fluorine content FKM vulcanizate at high temperature included physical infiltration and che-mical corrosion.
关键词
氟橡胶/航空发动机润滑油/耐润滑油热老化/耐热空气老化/物理机械性能/体积变化率
Key words
fluororubber/aero-engine lubrica-ting oil/thermal aging resistance of lubricating oil/hot air aging resistance/physical and mechanical property/volume change rate
维普
万方数据