Abstract:
The main purpose of this paper is to improve the lubrication oil resistance of the butadiene-acrylonitrile rubber (NBR) by using the medium resistance of fluoroplastic (PTFE) film. To increase the surface adhesion, the surface of PTFE film and NBR compounds were firstly treated by the cold plasma technology (CPT); Then the NBR samples were covered with PTFE film by using the high temperature adhesives. The micro morphology,physical and mechanical properties of the vulcanizates of the coated NBR in high temperature lubricating oil at 100℃ were tested and analyzed. The results indicated that with the experiment time increasing, the micro morphology of coated NBR didn't change obviously, the dimension and mass kept almost unchanged; but the compression set, the tensile strength and the elongation declined slightly. As a result, the lubricating oil resistance of NBR could be improved by PTFE film. Coating NBR could improve the lubricating oil resistance of NBR.