Influence of Contact Time With Lubricanton Polymer-Polymer Sliding Pair Interaction

Abstract

This paper presents tribological investigations of pairs of same-type construction polymers: PET, PA6, andPOM, which for different durations were in contact with a lubricant. Hydraulic oil HLP 68, used for heavilyloaded drive systems, was the lubricant. Test samples were subjected to storage in this lubricating mediumfor different lengths of time: ranging from no storage to 2 weeks of storage. The static friction coefficient,which has a significant bearing on the startup of systems, was studied. Furthermore, investigations aimed atidentifying the phenomena involved in the interaction of the polymer-polymer sliding pair were carried out.The duration of the storage of the polymeric materials in the lubricating medium has been found to have avisible effect on static friction coefficient values and surface hardness and condition.