Characterization and Modification of Nitrile Rubber in the Transformer Oil

Abstract

The thermal aging experiments on nitrile rubber (NBR) and modified NBR were carried out in 25# transformer oil. Both of the content of CH4, microstructure, morphology and mechanics characterization was analyzed by Gas Chromatography (GC), scanning electron microscopy (SEM), energy dispersive X-ray spectroscopy (EDS) and Servo Control material testing machine, respectively. The results shows that the amount of CH4 released from the modified NBR is less than original NBR, and the mechanics characterization of the modified NBR is also satisfied with the application requirements.