| 摘要 |
FIELD: functional liquids. SUBSTANCE: functional liquid includes composition on a new basis containing 1- 90 wt % tri(C-C)alkylphosphate wherein alkyls are bound to phosphate moiety through primary carbon atoms; 0-70 wt % di(C-C)alkylphosphate with the same nature of C-O bond; and about 0-25 wt % alkyldiarylphosphate. It is preferable alkyl substituents to be C-C-isoalkyls. Composition also includes acceptor of acid, anticorrosive reagent, viscosity stabilizer, and antioxidant. Combination of new additives includes high-molecular weight butyl/hexyl/methacrylate additive adjusting viscosity index, perfluoroalkylsulfonate as anticorrosive reagent, 3-4- epoxycyclohexanecarboxylate or diepoxide (acceptor of acid), di(alkylphenyl)amine, and phenolic antioxidant containing mixture of 2,4,6-trialkylphenol and restrained polyphenol selected from the group consisting of bis(3,5-dialkyl-4-hydroxyaryl)methane and 1,3,5-trialkyl-2,4,6-tris(3,5-di-tert-butyl-4-hydroxyaryl)benzene or their mixture. Composition preferably contains 4,5- dihydroimidazole compound providing liquid stability. EFFECT: high efficient composition proposed. |
