CN103160365A - Lubricating oil composition and preparation method thereof - Google Patents
Lubricating oil composition and preparation method thereof Download PDFInfo
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- CN103160365A CN103160365A CN2011104262527A CN201110426252A CN103160365A CN 103160365 A CN103160365 A CN 103160365A CN 2011104262527 A CN2011104262527 A CN 2011104262527A CN 201110426252 A CN201110426252 A CN 201110426252A CN 103160365 A CN103160365 A CN 103160365A
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Abstract
The invention discloses a lubricating oil composition and a preparation method thereof. The composition is composed of an annexing agent with mass fraction of 1%-10% and base oil with mass fraction of 99%-90%. The base oil is compound ester oil adipate, and the annexing agent is one of or a compound of lithium hexafluorophosphate, lithium trifluoromethanesulfonate, bi-trifluoromethane sulfonimide lithium, heptadecafluoro-1-octane sulfonic acid lithium. The annexing agents can be compounded with the base oil in the base oil to form home position ionic liquid, and therefore, intermiscibility between the annexing agents and the base oil is very good. The lubricating oil composition including the annexing agents has superior antifriction and abrasion resistance properties on steel/ a steel friction pair. The preparation process of the lubricating oil composition is simple, cost is low, and the lubricating oil composition is suitable for industrialization.
Description
Technical field
The present invention relates to a kind of lubricating oil composition and preparation method thereof, said composition has excellent anti-wear and wear-resistant performance as the lubricant of steel/steel-steel pair.
Background technology
Ionic liquid has extremely low vapour pressure, non-volatility, uninflammability, good thermostability, wide and stable electrochemical window, good solvability, good electroconductibility and the advantages such as controllability of zwitterion because of it, and be widely used in various fields (Greaves, the Tamar L. such as organic synthesis, catalysis, separating and extracting, polymerization, electrochemistry and photoelectric material; Drummond, Calum J.Chem.Rev.2008,108,206-237.).Calendar year 2001, Ye Chengfeng etc. in the world the reported first ionic liquid be a class excellent performance the multi-usage lubricant (Ye, C., Liu, W., Chen, Y., Yu, L.Chem.Commun.2001,21,2244-2245.).Since then, ionic liquid has played lot of domestic and foreign researchist's concern (Zhou, F. as the tribological Properties of lubricant; Liang, Y.; Liu, W.Chem.Soc.Rev., 2009,38,2590-2599.).Although pure ionic liquid has extraordinary tribological property as lubricant, the cost of its complicated synthesis step, costliness and the widespread use that corrosion problems has limited it.Therefore, ionic liquid is arisen at the historic moment as the research of lubricating oil additive.Experiment shows, ionic liquid not only has excellent anti-wear and wear-resistant performance as lubricating oil additive, and also obviously reduces with corrodibility that pure ionic liquid phase is compared matrix, in actual applications also relative reduce of cost.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, and base oil mostly is polyoxyethylene glycol.These ionic liquid all need to make by the step of the complexity such as alkylation, ion-exchange, separation, purifying, cost is still higher, and the intermiscibility of they and other base oil is poor, particularly with base oil intermiscibility extreme difference except polyoxyethylene glycol, still be very restricted in the application of tribological field.Therefore, design and preparation high-performance, low cost, remain one of the study hotspot in this field with the good ion liquid addictive of base oil intermiscibility.
Summary of the invention
The object of the present invention is to provide a kind of lubricating oil composition that contains the original position ion liquid addictive and preparation method thereof,
A kind of lubricating oil composition is characterized in that composition is that the additive of 1%-10% and base oil that massfraction is 99%-90% form by massfraction; Wherein base oil is synthesizing ester oil adipic acid ester, and additive is lithium hexafluoro phosphate (LiFP
6), trifluoromethayl sulfonic acid lithium (LiSO
3CF
3), two trifluoromethane sulfimide lithiums (LiTFSI), 17 fluoro-1-perfluoroetane sulfonic acid lithium (LiSO
3(CF
2)
7CF
3) in one or more mixture.
The preparation method of lubricating oil composition of the present invention: adding the massfraction additive that is 1%-10% to massfraction is in the 99%-90% adipic acid ester, stirs until all dissolvings.
Additive of the present invention can be in adipic acid ester formation original position ionic liquid composite with it [Li (synthetic ester)] (X is the negatively charged ion in additive to X, in-situ formed ionic liquid original position ionic liquid), thus reach excellent antifriction antiwear effect.It and base oil intermiscibility are good, and chemical stability and thermostability are high.The lubricating oil composition preparation process that contains this additive is simple, cost is low, is suitable for industrialization.
We at first to additive the solubleness in base oil test, result shows that the solubleness of this additive in adipic acid ester significantly is better than conventional ion liquid, as: the two trifluoromethane sulfimide salt (L-F102) (table 1) of 1-methyl-3-ethyl imidazol(e) a tetrafluoro borate (L-B102), 1-methyl-3-hexyl imidazoles hexafluorophosphate (L-P106) and 1-methyl-3-ethyl imidazol(e).Secondly, we test viscosity and the heat decomposition temperature of the lubricating oil composition invented, experimental result shows: due to adding of additive, no matter under 40 ℃ or 100 ℃ of conditions, the viscosity temperature characteristic of base oil is all improved (table 2) to some extent, and the heat decomposition temperature of base oil also obviously improves (table 3).
Table 1: additive therefor and the conventional ion liquid solubleness contrast in adipic acid ester.
| Additive | Additive therefor | L-B102 | L-P106 | L-F102 |
| Solubleness | ＞20％ | ＜0.5％ | ＜0.5％ | ＜0.5％ |
Table 2: the lubricating oil composition of inventing and basic oil viscosity and viscosity index contrast.
Table 3: the lubricating oil composition of inventing and the contrast of the heat decomposition temperature of base oil.
Adopt the little vibration friction abrasion testing machine of SRV-IV that German optimol grease company produces to estimate the friction and wear behavior of the lubricating oil composition of inventing.Selected frequency 25Hz, amplitude 1mm, experimental period 30min, 150 ℃ of temperature, experimentally trying is that AISI 52100 steel balls (diameter 10mm), lower sample are AISI 52100 blooms (Φ 24mm * 7.9mm).Experimental result shows: the lubricating oil composition of inventing is compared with pure base oil, has low-down frictional coefficient and minimum wear volume and excellent friction stationarity.
Table 4: the average friction coefficient of institute's invention lubricating oil composition and base oil and wear volume contrast.
| Lubricant | Average friction coefficient | Wear volume/10 -4mm 3 |
| Adipic acid ester | 0.169 | 77.26 |
| Additive+adipic acid ester | 0.090-0.110 | 2-4 |
Lubricating oil composition provided by the present invention and preparation method thereof has following beneficial effect:
(1) preparation of lubricating oil composition is simple, cost is low: due to additive adds after the base oil adipic acid ester can directly composite with it formation original position ionic liquid, thereby reach the effect of antifriction antiwear.With the conventional ion liquid phase than do not need alkylation, ion-exchange, separate, the preparation process such as purifying, cost significantly reduces.
Therefore, the present invention provides a practicable route for ionic liquid as the industrial applications of lubricating oil additive.
(2) solvability of additive in base oil is good: because additive can with the composite formation original position of base oil adipic acid ester ionic liquid, formed ionic liquid physical efficiency well is dissolved in base oil, therefore the solvability of additive in base oil is fabulous, and conventional ion liquid is minimum in the solubleness of base oil adipic acid ester.
Embodiment
In order to understand better the present invention, further illustrate by following examples:
Embodiment 1:
Be 1.5% LiSO with massfraction
3CF
3Adding massfraction to 1.5% LiTFSI is in 97% adipic acid ester, and stirring at normal temperature is until all dissolvings, both required lubricating oil composition, test its tribological property at 150 ℃.
Embodiment 2:
Be 3% LiSO with massfraction
3CF
3With 3% LiFP
6Adding massfraction to is in 94% adipic acid ester, and stirring at normal temperature is until all dissolvings, both required lubricating oil composition, test its tribological property at 150 ℃.
Embodiment 3:
Claims (2)
1. lubricating oil composition is characterized in that composition is that the additive of 1%-10% and base oil that massfraction is 99%-90% form by massfraction; Wherein base oil is synthesizing ester oil adipic acid ester, and additive is one or more the mixture in lithium hexafluoro phosphate, trifluoromethayl sulfonic acid lithium, two trifluoromethane sulfimide lithium, 17 fluoro-1-perfluoroetane sulfonic acid lithiums.
2. the preparation method of lubricating oil composition as claimed in claim 1, is characterized in that adding the additive that massfraction is 1%-10% to massfraction is in the 99%-90% adipic acid ester, stirs until all dissolvings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104262527A CN103160365A (en) | 2011-12-16 | 2011-12-16 | Lubricating oil composition and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104262527A CN103160365A (en) | 2011-12-16 | 2011-12-16 | Lubricating oil composition and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103160365A true CN103160365A (en) | 2013-06-19 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011104262527A Pending CN103160365A (en) | 2011-12-16 | 2011-12-16 | Lubricating oil composition and preparation method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109400883A (en) * | 2018-11-29 | 2019-03-01 | 中国科学院兰州化学物理研究所 | A kind of anti-space radiation POSS base position ionic liquid and its preparation method and application |
| WO2023137819A1 (en) * | 2022-01-24 | 2023-07-27 | 中国科学院兰州化学物理研究所 | Oil-soluble conductive additive and preparation method therefor |
Citations (3)
| 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 |
| CN101310003A (en) * | 2005-11-14 | 2008-11-19 | 日本合成化学工业株式会社 | Synthetic lubricant |
-
2011
- 2011-12-16 CN CN2011104262527A patent/CN103160365A/en active Pending
Patent Citations (3)
| 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 |
| CN101310003A (en) * | 2005-11-14 | 2008-11-19 | 日本合成化学工业株式会社 | Synthetic lubricant |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109400883A (en) * | 2018-11-29 | 2019-03-01 | 中国科学院兰州化学物理研究所 | A kind of anti-space radiation POSS base position ionic liquid and its preparation method and application |
| CN109400883B (en) * | 2018-11-29 | 2021-03-30 | 中国科学院兰州化学物理研究所 | Space irradiation resistant POSS-based in-situ ionic liquid and preparation method and application thereof |
| WO2023137819A1 (en) * | 2022-01-24 | 2023-07-27 | 中国科学院兰州化学物理研究所 | Oil-soluble conductive additive and preparation method therefor |
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Application publication date: 20130619 |