Magnetic Nanodisperse Oils Based on Organosilicone Fluids: Lubricant Properties of Oils with Different Additives

The paper describes the results of studies aimed at creating and studying magnetic lubricating oils that contain organosilicone fluids as a dispersion medium and steadily operate in the frictional knee boundary friction mode. The paper also investigates lubricating properties of magnetic oils based on oligodiethylsiloxane and oligomethyl(chlorophenyl)siloxane under various friction conditions and shows their specific features. It analyzes the influence of various additives and fillers on tribotechnical characteristics of magnetic oils. It also defines a different mechanism of additives effects on frictional contact properties and proposes its description. It is established that a magnetic oil service life is comparable with one of the transmission oils, for example, TM-5-18; it is also two or three orders greater than the one of the plastic lubricant OKB-122-7. According to the results of magnetic oil tests, there were determined some compositions that are the most promising for practical use in tribounits. Finally, the paper provides recommendations on the practical application of optimal compositions of magnetic lubricating oils in traditional and perspective tribounits with various operational parameters.