Perfluoropolyalkylether lubricant formulation with improved stability

摘要

An oxidation-corrosion additive for enhancing the stability of PFPAEs which has the formula: ;wherein Q is R_f or SR_f, R_f is a perfluoroalkyl or perfluoroalkylether group having 1 to 30 carbon atoms, x and y are integers, each having a value of 0-5, wherein the sum of x and y is in the range of 1 to 10. In the formula above, R_f may be linear or branched. The additive can be a single component or a mixture of components varying in the number and relative positions of x and y. The additive can be used alone or with other suitable additives in PFPAE base fluids.