Study on Compression Set of HNBR in Diesel Environment
By analyzing the effect of compression load in oil-containing medium on the HNBR vul-canized specimen,the test method of simultaneous action of medium and compression load was selected to simulate the working state of rubber seals.The results showed that the compression set of HNBR continued to increase with the increase of temperature.After continuous compression for 28 d,the compression set of HNBR increased from 16.44%at 80℃to 91.14%at 200℃.With the extension of soaking time,HNBR compression set remained stable after decreasing at 80℃,and continued to in-crease at 120℃,160℃and 200℃.By analyzing the performance of samples with similar physical or chemical change mechanisms,the HNBR life prediction equation was y=-1312.60x-0.20343.
NETL
NSTL
万方数据
维普
