Keyword: «viscosity»

The article is devoted to the evaluation of the operational and technical properties of motor oils, their changes in the process of operation, as well as the effect on engine performance. The problems of the effect of viscosity on the lubrication regimes in the engine parts.

The paper shows the possibility of processing composites based on UHMWPE by extrusion by adding a low-viscosity grade of polyethylene and stearic acid. It is shown that the best indicators of physico-mechanical properties and dynamic viscosity coefficient are achieved for PCM based on UHMWPE with the introduction of 5 wt. % polyethylene and 5 wt. % stearic acid. The possibility of modifying such composites with fibers and processing them using extrusion technology has also been established, which, with further refinement of the technology, will improve the operational properties of the composite based on UHMWPE and PE.