Structuring Peculiarities of Polytetrafluoroethylene Modified with Boron Nitride when Activated with Ultrasonic Exposure

High reliability and durability of metal-polymer friction units widely used in petrochemical process equipment is inextricably connected with the use of new materials with advanced serviceability. The paper presents the influence patterns of ultrasonic exposure on the structural features of the synthesized polymer composite material based on polytetrafluoroethylene, modified with boron nitride, that results in the supramolecular structure change, the crystallinity degree increase and the matrix blocks growth. Ultrasonic activation of polytetrafluoroethylene modified with boron nitride leads to the wear rate and friction coefficient decrease.