Investigation of the properties and aging mechanisms of vulcanized hydrogenated nitrile rubber in different mediums

Abstract

Packer rubber cylinders in oil drilling operations must withstand high pressure, high temperature, and destruction of mediums. To ensure the long-term service time of the hydrogenated nitrile rubber (HNBR) packer rubber cylinders, it is essential to understand the aging mechanism of HNBR in different aging environments. Four HNBR with various acrylonitrile contents (ACN 17%, 21%, 34%, and 43%) were pre-