CN103160363B - Lubricant composition containing ionic liquid and manufacture method thereof - Google Patents
Lubricant composition containing ionic liquid and manufacture method thereof Download PDFInfo
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- CN103160363B CN103160363B CN201110427920.8A CN201110427920A CN103160363B CN 103160363 B CN103160363 B CN 103160363B CN 201110427920 A CN201110427920 A CN 201110427920A CN 103160363 B CN103160363 B CN 103160363B
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Abstract
The invention discloses a lubricant composition containing ionic liquid and a manufacture method of the lubricant composition. The composition comprises base oil and ionic liquid, wherein the mass fraction of the base oil is 99%-95% and the mass fraction of the ionic liquid is 1%-5%. The base oil is adipate and the ionic liquid is a mixture compounded by one or two selected from bistrifluoromethanesulfonimide lithium and 2-Oxazolidone or urea or triethyle ne glycol dimethyl ether or tetraethylene glycol dimethyl ether. The ionic liquid and the lubricant composition can be synchronously compounded. The ionic liquid is simple in process, low in raw material cost and suitable for industrialization and has good chemical stability and thermal stability. The lubricant composition has good anti-wear performance and abrasion resistance to steel or a steel friction pair.
Description
Technical field
The present invention relates to a kind of lubricant compositions containing ionic liquid and preparation method thereof, said composition preparation technology is simple, has excellent anti-wear and wear-resistant performance as the lubricant of steel/steel-steel pair.
Background technology
Since the forties in 20th century, ionic liquid becomes one of the forward position of contemporary chemical science and study hotspot with the advantage of himself.It has the not available advantage of a lot of molecular solvent, as nonflammable explosive, fusing point is low, volatility is low, good in oxidation resistance and thermostability high (Deng Youquan. ionic liquid one character, preparation and application [M]. Beijing: Sinopec press, 2006.11), this makes it get the attention in fields such as organic catalysis and synthetic, electrochemistry, photochemistry and sepn processes as desirable green reagent.Meanwhile, the desired performance of these features and ideal lubricant is very identical, makes its research in field of lubricant (Ye in the ascendant, C.F., Liu, W.M., Chen, Y.X., Yu, L.G.Chem.Commun, 2001,21,2244-2245.), be expected to become the high performance lubricant under the severe condition such as aviation, computer industry.The ionic liquid as lubricating oil additive that document has been reported is generally the ionic liquid of quaternary amine, quaternary phosphonium, pyridine, alkyl imidazolium cation, these ionic liquids all need to make by the step of the complexity such as alkylation, ion-exchange, separation, purifying, its complicated synthesis step, expensive cost, have limited their application in tribological field with the problem such as intermiscibility and the corrodibility to substrate of base oil extreme difference.
Summary of the invention
The object of the present invention is to provide a kind of lubricant compositions that contains ionic liquid and preparation method thereof.
A kind of lubricant compositions that contains ionic liquid, it is characterized in that the ionic liquid that base oil that this lubricant compositions is 99-95% by massfraction and massfraction are 1-5% forms, base oil is adipic acid ester, ionic liquid is by two trifluoromethane sulfimide lithiums and 2-oxazolidone (OZO), urea (urea), TRIGLYME (G3) or the composite chemical molecular formula obtaining of tetraethyleneglycol dimethyl ether (G4) are respectively [Li (OZO)] TFSI, [Li (urea)] TFSI, [Li (G3)] TFSI and [Li (G4)] TFSI.
This lubricant compositions has excellent anti-wear and wear-resistant performance to steel/steel-steel pair.
The preparation method of this lubricant compositions that contains ionic liquid: one or both in two trifluoromethane sulfimide lithiums and 2-oxazolidone, urea, TRIGLYME or tetraethyleneglycol dimethyl ether are joined in base oil adipic acid ester, just formed the lubricant compositions that contains ionic liquid after stirring and dissolving.
In this lubricant compositions, the massfraction of base oil adipic acid ester is 99%-95%, and the massfraction of ionic liquid is 1%-5%.
In above-mentioned preparation method, the mol ratio of two trifluoromethane sulfimide lithiums and 2-oxazolidone, urea, TRIGLYME or tetraethyleneglycol dimethyl ether is 1.0: 1.0-6.5.
Oligopolymer ether compound glymes (as: G3, G4) is stronger Lewis base, can with alkalimetal ion Li
+composite formation Subacidity cation [Li (glyme)]
+, [Li (glyme)]
+again can be further and weakly alkaline TFSI
-coordinate and form [Li (glyme)] TFSI ionic liquid (or forming title complex [Li (OZO)] TFSI as OZO with the organic molecule that contains amidocarbonylation group) (Chen, R.J., Wu, F., Li, L., Xu, B., Qiu, X.P., Chen, S.J.Phys.Chem.C.2007,111,5184-5194).The present invention utilizes this principle exactly, and two trifluoromethane sulfimide lithiums and 2-oxazolidone, urea, TRIGLYME or tetraethyleneglycol dimethyl ether are joined in base oil adipic acid ester, just formed the lubricant compositions that contains ionic liquid after stirring and dissolving.These ionic liquids not only have higher chemical stability and thermostability, and with conventional ion liquid phase than not needing alkylation, ion-exchange, separate, the preparation process such as purifying, therefore cost significantly reduces.
This lubricant compositions is colourless transparent liquid, and first we be studied its viscosity.Experimental result shows: be no matter that along with adding of ionic liquid, the viscosity temperature characteristic of base oil is all improved (table 1) to some extent under 40 DEG C or 100 DEG C of conditions; Secondly we test its heat decomposition temperature, and result shows: compared with base oil, add heat decomposition temperature after ionic liquid be also significantly improved (table 2).
Table 1: viscosity and the viscosity index of institute's invention lubricant compositions.
Table 2: the heat decomposition temperature of institute's invention lubricant compositions.
The SRV-IV micro-moving frictional wear trier that adopts German optimol grease company to produce has been evaluated the friction and wear behavior of institute's invention lubricant compositions, selected frequency 25Hz, amplitude 1mm, experimental period 30min, 150 DEG C of temperature, experimentally try as AISI 52100 steel balls (diameter 10mm), lower sample is AISI 52100 blooms (Φ 24mm × 7.9mm).Experimental result shows: institute's invention lubricant compositions, compared with base oil, has low-down frictional coefficient, less wear volume and excellent friction stationarity.
Table 3: the average friction coefficient of institute's invention lubricant compositions and base oil and wear volume contrast.
| Lubricant | Adipic acid ester | Institute's invention lubricant compositions |
| Average friction coefficient | 0.152 | 0.100-0.110 |
| Wear volume/10 -5mm 3 | 105.5 | 34-42 |
Advantage of the present invention:
(1) preparation of the lubricant compositions in the present invention is simple, cost is low: in the present invention, ionic liquid used adds and conventional ion liquid phase ratio, do not need the preparation processes such as alkylation, ion-exchange, separation, purifying, can in the time preparing lubricant compositions, one step complete, cost significantly reduces.
(2) solvability of ionic liquid in base oil is good: in the present invention, ionic liquid physical efficiency used is dissolved in synthesizing ester oil adipic acid ester, and conventional ion liquid is almost insoluble in ester class oil.
Potential using value:
Lubricant compositions preparation process in the present invention is simple, cost is low, tribological property is excellent, is expected to play a role in lubricated field as basic oil additives.
Embodiment
For a better understanding of the present invention, describe by following examples:
Embodiment 1: the LiTFSI that is 0.687% by massfraction and 0.313% OZO join in 99% base oil adipic acid ester, form after stirring and dissolving and contain quality and be divided into 1%[Li (OZO)] lubricant compositions of TFSI ionic liquid.
Embodiment 2: identical with the preparation method of embodiment 1, prepare several lubricant compositions.
Claims (2)
1. a lubricant compositions that contains ionic liquid, it is characterized in that the ionic liquid that base oil that this lubricant compositions is 99-95% by massfraction and massfraction are 1-5% forms, base oil is adipic acid ester, ionic liquid is by two trifluoromethane sulfimide lithiums and 2-oxazolidone, urea, TRIGLYME or tetraethyleneglycol dimethyl ether be composite to be obtained, chemical molecular formula is respectively [Li (OZO)] TFSI, [Li (urea)] TFSI, [Li (G3)] TFSI and [Li (G4)] TFSI, wherein OZO represents 2-oxazolidone, G3 represents TRIGLYME, G4 represents tetraethyleneglycol dimethyl ether, urea represents urea, the mol ratio of two trifluoromethane sulfimide lithiums and 2-oxazolidone, urea, TRIGLYME or tetraethyleneglycol dimethyl ether is 1.0: 1.0-6.5.
2. contain as claimed in claim 1 the preparation method of the lubricant compositions of ionic liquid, it is characterized in that one or both in two trifluoromethane sulfimide lithiums and 2-oxazolidone, urea, TRIGLYME or tetraethyleneglycol dimethyl ether to join in base oil adipic acid ester, after stirring and dissolving, just formed the lubricant compositions that contains ionic liquid.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201110427920.8A CN103160363B (en) | 2011-12-16 | 2011-12-16 | Lubricant composition containing ionic liquid and manufacture method thereof |
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| CN201110427920.8A CN103160363B (en) | 2011-12-16 | 2011-12-16 | Lubricant composition containing ionic liquid and manufacture method thereof |
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| CN103160363A CN103160363A (en) | 2013-06-19 |
| CN103160363B true CN103160363B (en) | 2014-06-04 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105255548A (en) * | 2015-11-17 | 2016-01-20 | 中国科学院兰州化学物理研究所 | High temperature aircraft engine lubricating oil |
| CN106190522B (en) * | 2016-07-28 | 2019-04-30 | 中国科学院兰州化学物理研究所 | The organic salt and preparation method thereof used as water lubrication additive |
| CN110148781A (en) * | 2019-04-22 | 2019-08-20 | 华中科技大学 | A kind of ionic liquid gel electrolyte, preparation method and application |
| CN110591799A (en) * | 2019-09-25 | 2019-12-20 | 曾成 | Engine oil composition for repairing, maintaining and refrigerating system and preparation and use method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4569774A (en) * | 1984-11-13 | 1986-02-11 | Mobil Oil Corporation | Polyglycol lubricants comprising trifluoromethane sulfonate |
| JP2005089667A (en) * | 2003-09-19 | 2005-04-07 | Sanko Kagaku Kogyo Kk | Antistatic lubricant oil composition |
| CN101688144A (en) * | 2007-06-20 | 2010-03-31 | 慕尼黑克吕伯尔润滑器两合公司 | Ionic liquid is used to improve the purposes of properties of lubricating compositions |
| CN101983231A (en) * | 2008-04-04 | 2011-03-02 | 慕尼黑克吕伯尔润滑器两合公司 | Lubricating grease composition on basis of ionic fluids |
-
2011
- 2011-12-16 CN CN201110427920.8A patent/CN103160363B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4569774A (en) * | 1984-11-13 | 1986-02-11 | Mobil Oil Corporation | Polyglycol lubricants comprising trifluoromethane sulfonate |
| JP2005089667A (en) * | 2003-09-19 | 2005-04-07 | Sanko Kagaku Kogyo Kk | Antistatic lubricant oil composition |
| CN101688144A (en) * | 2007-06-20 | 2010-03-31 | 慕尼黑克吕伯尔润滑器两合公司 | Ionic liquid is used to improve the purposes of properties of lubricating compositions |
| CN101983231A (en) * | 2008-04-04 | 2011-03-02 | 慕尼黑克吕伯尔润滑器两合公司 | Lubricating grease composition on basis of ionic fluids |
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