Chemical, physical and technological properties of polyethers as synthetic lubricants

Abstract An extensive range of base fluids has been considered for the formulation of partially and fully synthetic lubricants. In this paper, polyethers are discussed in relation to their tribological properties and chemical structure. Physical properties are reviewed, including water solubility, viscosity‐pressure and thermal stability. Oxidation stability is discussed, and tribological examination shows significant advantages of polyethers, with various additives, in friction, gear and other tests, compared with mineral oils.