Nano-ZrO2 surface modified lubricating oil additive, lubricating oil and its preparation method
A lubricating oil additive and surface modification technology, which is applied in the direction of additives, lubricating compositions, petroleum industry, etc., can solve the problems of poor compatibility between the surface and lubricating oil, stability, anti-friction performance, self-repairing performance, etc.
Inactive Publication Date: 2009-09-09
UNIV OF JINAN
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Problems solved by technology
The application of the above-mentioned nanomaterials as lubricating additives in lubricating oils for tribological research has achieved many results, but many noteworthy problems have also been found in the research: more active metals, basic oxides, amphoteric oxides and After the hydroxide is nanosized, its reactivity is significantly improved, and it is easier to react with oxygen and acid, and finally generate salt
[0003] But ZrO 2 The surface of the surface has poor compatibility with lubricating oil, and nano-ZrO is directly added to the lubricating oil 2 , its stability, anti-wear performance and self-repair performance cannot meet the requirements
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[0049] Amorphous Nano ZrO 2 preparation of
[0050] Preparation of Amorphous Nano-ZrO by Sol-Gel Method 2 . Preparation of Amorphous Nano-ZrO 2 The optimal preparation parameters for are as follows:
[0051] Prepare 0.5mol / L ZrOCl 2 The solution was heated in a water bath to keep the temperature at about 60°C; 0.5% dispersant polyethylene glycol was added, and after constant temperature for about 15 minutes, a certain amount of ammonia water was slowly added dropwise under rapid stirring to adjust the pH value of the system to 9 to obtain Hydrogel; after aging the hydrogel in the mother liquor for 3 hours, wash the precipitate with deionized water until the chloride ions are washed away, vacuum filter and dehydrate; then transfer the precipitate into a flask and add a certain amount of n-butyl Alcohol is subjected to azeotropic distillation to remove residual moisture in the precursor. When the temperature rises to 113°C, n-butanol starts to boil and is refluxed for one h...
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Abstract
The invention relates to a lubricating oil additive with nanometer ZrO2 surface modification, lubricating oil added with the lubricating oil additive, and a preparation method thereof. The lubricating oil additive is made by mixing nano ZrO2 powder in the lubricating oil matrix, and the nano ZrO2 powder is made by compounding a monomolecular layer silane coupling agent on the surface of amorphous nano ZrO2; the silane coupling agent The general chemical structure formula is expressed as: Y-R-SiX3. The lubricating oil contains nano ZrO2 powder in an amount of 0.01-0.5% by weight. The lubricating oil additive of the invention has good compatibility with lubricating oil and good stability. The lubricating oil added with lubricating oil additives enriches the ZrO2 particles in the metal surface defects, thereby establishing a self-healing lubricating film on the surface of the friction pair, which has the characteristics of good wear reduction and self-healing performance.
Description
(1) Technical field [0001] The invention relates to a lubricating oil additive, in particular to a nano ZrO 2 A surface-modified lubricating oil additive, a lubricating oil added with the above-mentioned lubricating oil additive, and a preparation method thereof. (2) Background technology [0002] Elemental nano-powder materials, such as nano-elemental Cu, Sn, Pb, etc.; nano-inorganic salt and sulfide powders, such as LaF 3 , molybdenum disulfide, PbS, etc.; nano hydroxide or oxide powder, such as Mg(OH) 2 、TiO 2 , SiO 2 Wait. The application of the above-mentioned nanomaterials as lubricating additives in lubricating oils for tribological research has achieved many results, but many noteworthy problems have also been found in the research: more active metals, basic oxides, amphoteric oxides and After the hydroxide is nanosized, its reactivity is significantly improved, and it is easier to react with oxygen and acid, and finally generate salt. During the use of the abo...
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IPC IPC(8): C10M125/10C09C3/12
Inventor郑少华苏登成国秋菊
OwnerUNIV OF JINAN