Antioxidant composition and lubricating oil composition
A technology of antioxidant and composition, which is applied in the direction of lubricating composition, additives, petroleum industry, etc., can solve the problems of weakening the anti-wear and anti-friction effect of organic molybdenum additives, shortening the service life of lubricating oil, and unfavorable anti-oxidation synergy, etc. Achieve excellent anti-wear and anti-friction performance, improve anti-oxidation performance and anti-wear and anti-friction performance, excellent anti-oxidation performance and anti-wear and anti-friction performance
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[0069] Example 1-6
[0070] Add fatty acid amide, polyisobutylene succinimide, inorganic molybdenum compound and optional distilled water, diluent oil and solvent into the reaction vessel, stir, heat up, remove water, and react at 120°C-160°C for 1-10 hours. Finally, the solvent is evaporated to obtain organic molybdenum additives W-01 to W-06, and the mass fraction of the molybdenum content is between 1.0% and 10.0%.
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[0077] Examples 7-12 and Comparative Examples 7-15
[0078] Add aromatic amine antioxidants and organic molybdenum additives to various lubricating base oils by mass percentages, and mix and stir to obtain examples 7-12 and comparative examples 7-15 of the lubricating oil composition. The formula composition is shown in Table 4.
[0079] The anti-oxidation and anti-wear and anti-friction properties of these lubricating oil compositions were evaluated respectively. The PDSC method was used to determine the anti-oxidation performance of each lubricating oil composition, and the test conditions were 230°C and the oxygen pressure was 0.5 MPa; the SRV method was used to determine the anti-wear and anti-friction performance of each lubricating oil composition. The test conditions were: temperature 80°C, 300N, stroke 1mm, test time 1 hour, frequency 50Hz, SRV method see National Energy Administration standard NB / SH / T0847-2010. The test results are shown in Table 5.
[0080] It can be see...
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