Traction properties of blended oils

摘要

The effect of the intensity of interactions between oil molecules on the establishment of the additive property was studied in relation with the determination of the traction coefficient of blended oils. Speaking more in detail, oils with strong and weak interactions between molecules were intentionally prepared and their atmospheric viscosity, their viscosity-pressure coefficient a and their maximal traction coefficient were determined. The obtained results enabled to establish that (1) in the case of synthetic naphthene oilaphthene type mineral oil system with weak interactions between molecules, the additive property was established in terms of the ratio of blending, the atmospheric viscosity, the viscosity-pressure coefficientα and the maximal traction coefficient, but (2) in the cases of cyclohexanone/cyclohexylamine system and cyclohexanone/1, 2-diaminocyclohexane system forming two-molecule or three-molecule associates with hydrogen bonds between molecules, the additive property in the above terms was not established. The above results were considered in the correlation with the activated volume in the process of flow of blended oils.