Antiwear agent, its application, its preparation method, ashless hydraulic oil composition and its preparation method
An ashless hydraulic oil and anti-wear agent technology, applied in the field of hydraulic oil, can solve the problem of difficult detection of hydraulic oil, and achieve the effect of good anti-wear performance and good anti-wear performance
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[0041] Further, the present invention also provides a preparation method of an antiwear agent, comprising:
[0042] The antiwear agent is formed by mixing and stirring the alkylphenol disulfide compound, the ashless dithiodialkyl compound and the ashless thiophosphoric acid compound.
[0043] Further, the present invention also provides an ashless hydraulic oil composition, which includes the antiwear agent according to any one of the foregoing embodiments, preferably, in terms of mass percentage, it includes 30-50% antioxidant, antirust 7-17% of the anti-wear agent, 3-7% of the metal passivator, and 30-48% of the anti-wear agent according to any one of the preceding embodiments. The use of antiwear agents, antioxidants, metal passivators and rust inhibitors in the above range ensures the performance of ashless hydraulic oil, so that ashless hydraulic oil not only has good antiwear performance, but also has excellent antioxidation, filtration The properties of high stability,...
Embodiment 1
[0056] This embodiment provides an antiwear agent, which includes 15 parts of alkylphenol disulfides, 9 parts of ashless dithiodialkyl compounds and 6 parts of triphenyl thiophosphate. Among them, the ashless dithiodialkyl compounds include 4.8 parts of dithiodialkyl phosphates and 4.2 parts of dithiodialkyl carbamates.
[0057] The present embodiment also provides a method for preparing an antiwear agent, comprising:
[0058] Alkylphenol disulfide, ashless dithiodialkyl phosphate, dithiodialkyl carbamate and triphenyl thiophosphate are stirred and mixed uniformly.
[0059] This embodiment provides an ashless hydraulic oil composition, which includes 30% anti-wear agent, 8% rust inhibitor, 50% antioxidant, 5% metal passivator, 0.5% demulsifier, 0.1% defoamer agent and 3.4% 150SN base oil.
[0060] Specifically, the ashless hydraulic oil composition includes 15% of alkylphenol disulfide, 9% of ashless dithiodialkyl antiwear agent, 6% of triphenyl thiophosphate, 2.4% of alkano...
Embodiment 2
[0067] This embodiment provides an antiwear agent, which includes 19.2 parts of alkylphenol disulfide, 19.2 parts of ashless dithiodialkyl compounds and 9.6 parts of triphenyl thiophosphate. Among them, the ashless dithiodialkyl compounds include 10.2 parts of dithiodialkyl phosphate and 9 parts of dithiodialkyl carbamate.
[0068] This embodiment provides an ashless hydraulic oil composition, which includes 48% anti-wear agent, 7% rust inhibitor, 35% antioxidant, 3% metal passivator, 0.6% demulsifier, 0.2% defoamer agent and 6.2% 150SN base oil.
[0069] Specifically, the ashless hydraulic oil composition includes 19.2% of alkylphenol disulfide, 19.2% of ashless dithiodialkyl antiwear agent, 9.6% of triphenyl thiophosphate, 3.5% of alkanoyl amino acid, Phenoxyacetic acid 1.4%, imidazoline derivative 1.4%, phosphate amine salt 0.7%, thioether-type phenolic antioxidant 21%, hindered phenol 7% alkylated diphenylamine 7%, benzotriazole derivative 1.8% , the thiadiazole derivati...
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