CN102337171A - Ionic liquid polyurea grease composition - Google Patents
Ionic liquid polyurea grease composition Download PDFInfo
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- CN102337171A CN102337171A CN2010102341835A CN201010234183A CN102337171A CN 102337171 A CN102337171 A CN 102337171A CN 2010102341835 A CN2010102341835 A CN 2010102341835A CN 201010234183 A CN201010234183 A CN 201010234183A CN 102337171 A CN102337171 A CN 102337171A
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- ionic liquid
- polyurea grease
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- UBNFDILSVHFCEO-UHFFFAOYSA-N CN(C1)CN(C)C1C1CCCCCCCC1 Chemical compound CN(C1)CN(C)C1C1CCCCCCCC1 UBNFDILSVHFCEO-UHFFFAOYSA-N 0.000 description 1
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Abstract
The invention discloses an ionic liquid polyurea grease composition, which comprises alkyl imidazole ionic liquid with the mass fraction being 0.5-5 percent and polyurea grease with the mass fraction being 99.5-95 percent. When the ionic liquid polyurea grease composition is used as grease for steel/steel friction pairs, the tribological properties of the grease can be improved significantly, the ionic liquid polyurea grease composition has excellent friction reducing performance, excellent friction resistance and high bearing capacity, and is expected to be applied in the sealing bearing industry, the automotive industry, the aviation industry and the like.
Description
Technical field
The present invention relates to a kind of ionic liquid polyurea grease composite.
Background technology
Along with development of times; Development of technology, the raising of energy-conservation and environmental requirement, the additive performance also must be improved thereupon; This just requires the extreme-pressure anti-wear of traditional additive is improved, and develops new wear preventive additive and satisfy and reduce extreme-pressure anti-wear requirement behind the sulphur phosphorus content.Therefore the railway grease wear preventive additive begins the improvement of new varieties and traditional lubrication oil antiwear agent.The development of aerospace and space technology has proposed increasingly high requirement to the performance of lubricating oil, so the development of high-performance ucon oil will be one of advanced subject of tribological field.Ionic liquid has been opened a brand-new window as the research of high performance lubricant for us, and it shows extraordinary application prospect (CN200310117751.3 as base oil; CN200410097689.0), but ionic liquid has shortcomings such as cost height, corrosive oxidation property are strong simultaneously, can avoid the problems referred to above and use as additive.Current research shows that alkyl imidazo ion liquid and polyurea grease have good consistency, adds small amount of ionic liquid in the polyurea grease, forms the ionic liquid polyurea grease composite, can significantly improve the tribological property of polyurea grease.
Summary of the invention
The object of the present invention is to provide a kind of ionic liquid polyurea grease composite.
Polyurea grease is a type high temp railway grease, has higher dropping point, and high temperature is difficult for softening down; Colloidal structure is stable, divides oil few; At high temperature have simultaneously good antioxidant property and long work-ing life, the outstanding high-temperature behavior of polyurea grease has obtained the application widely of high temperature service railway grease, is described as one of the most promising railway grease kind of 21 century.The use temperature of polyurea grease is higher, and the thermostability of additive is had relatively high expectations, and is unaffected to guarantee railway grease performance in use; Ionic liquid has high thermostability; Non-volatility, good lubricating property satisfies the request for utilization of polyurea grease fully.
A kind of ionic liquid polyurea grease composite is characterized in that compsn is that the alkyl imidazo ion liquid and the massfraction of 0.5%-5% molecular formula (I) formed for the 99.5%-95% polyurea grease by massfraction,
Molecular formula (I)
R in the molecular formula (I)
1Represent methylidene, butyl, hexyl, octyl group or certain herbaceous plants with big flowers base; R
2Represent methylidene, butyl, hexyl, octyl group or certain herbaceous plants with big flowers base; A represents PF
6, BF
4Or N (CF
3SO
2)
2
In order to guarantee that molecular formula (I) compound can have good solubility and good anti-wear and wear-resistant performance is arranged again in polyurea grease, wherein most preferably 1-alkyl-3-Methylimidazole hexafluorophosphate, molecular formula is:
Perhaps be:
1-butyl-3-Methylimidazole hexafluorophosphate [writing a Chinese character in simplified form L-P104] molecular formula (IV); 1-hexyl-3-Methylimidazole hexafluorophosphate [writing a Chinese character in simplified form L-P106] molecule formula V; 1-octyl group-3-Methylimidazole hexafluorophosphate [writing a Chinese character in simplified form L-P108] molecule formula VI; 1-certain herbaceous plants with big flowers base-3-Methylimidazole hexafluorophosphate [writing a Chinese character in simplified form L-P110] molecular formula (VII).
Molecular formula is respectively:
The molecule formula IV
The molecule formula V
The molecule formula VI
Molecular formula (VII)
Described polyurea grease, preferably in order to stearylamine, 2, the reaction product polyureas of 4-toluene diisocyanate (TDI), para-totuidine is made viscosifying agent, is base oil synthetic railway grease with four line pressed oils, performance perameter such as table 1 that it is concrete.
The performance perameter of table 1 polyurea grease
The preparation method of ionic liquid polyurea grease composite of the present invention: at first mechanical stirring under the alkyl imidazo ion liquid of molecular formula (I) and the polyurea grease room temperature is fully dissolved; With the homogenization installation grinding it is mixed then, get the ionic liquid polyurea grease composite.
Produce the reference of molecular formula (1): Bonhote, P., Dias; A.P., Papageorgiou, N.; Kalyanasundaram, K., Gratzel; M.:Hydrophobic, highly conductiveambient-temperature molten salts.Inorg.Chem.35 (1996) 1168-1178.
Ionic liquid polyurea grease composite of the present invention has high thermostability, and good lubricating property is expected to be used for industries such as sealing bearing industry, automobile industry and aviation.
The experimental technique that ionic liquid polyurea grease composite of the present invention adopts is following:
Friction wear testing machine is estimated the tribological property of ionic liquid polyurea grease composite under different loads and temperature condition when adopting Optimol-SRV-IV type friction wear testing machine and mechanical type four balls long.The friction pair contact form of Optimol-SRV-IV type friction wear testing machine is ball one contact of making an inventory, and selected frequency is 25Hz, and amplitude is 1mm; Test period is 30min, and 150 ℃ of temperature, load are 100N-500N; On try and be diameter 10mm GCr15 (SAE52100) steel ball, following examination dish is a steel disk.Friction wear testing machine when mechanical type four balls are long, selected frequency is 33.5HZ, test period is 30min, temperature is a room temperature, load 392N, on try and under to try be 12.7mm GCr15 (SAE52100) steel ball for diameter all.
With table 6 is that example specifies, and at first mechanical stirring under alkyl imidazo ion liquid and the polyurea grease room temperature is fully dissolved, and grinds with homogenization installation then it is mixed, and gets the ionic liquid polyurea grease composite.And the additive sulfur phosphorus secondary alcohol groups zinc salt (T204) with commonly used contrasts as polyurea grease 1% additive; Friction wear testing machine is estimated the tribological property of institute's synthetic ionic liquid under different loads and temperature condition when adopting Optimol-SRV-IV type friction wear testing machine and mechanical type four balls long; The SRV experimental result shows that the ionic liquid polyurea grease composite has lower frictional coefficient and less wear volume than T204 as the polyurea grease additive at 150 ℃; Has good anti-wear and wear-resistant performance; Concrete data are seen table 1, table 2.Frictional wear experiment explanation ionic liquid composite polyurea railway grease had littler frictional coefficient and magic spot diameter than T204 as the polyurea grease additive, concrete data such as table 3 when four balls were long.
In a word, experimental result shows the railway grease as steel/steel-steel pair, obviously improves the tribological property of railway grease, has good anti-wear and wear-resistant performance and high supporting capacity.
Table 2 ionic liquid polyurea grease composite average friction coefficient
The average abrasion volume of table 3 ionic liquid polyurea grease composite
Table 4 ionic liquid polyurea grease composite average friction coefficient and average wear scar diameter
Embodiment
In order to understand the present invention better, describe through embodiment.
Embodiment 1:
Table 5
Embodiment 2:
Table 6
Embodiment 3:
Table 7
Embodiment 4
Table 8
Embodiment 5:
Table 9
Embodiment 6:
Table 10
Claims (6)
1. ionic liquid polyurea grease composite is characterized in that compsn is that the alkyl imidazo ion liquid and the massfraction of 0.5%-5% molecular formula (I) formed for the 99.5%-95% polyurea grease by massfraction,
Molecular formula (I)
R in the molecular formula (I)
1Represent methylidene, butyl, hexyl, octyl group or certain herbaceous plants with big flowers base; R
2Represent methylidene, butyl, hexyl, octyl group or certain herbaceous plants with big flowers base; A represents PF
6, BF
4Or N (CF
3SO
2)
2
2. compsn as claimed in claim 1 is characterized in that alkyl imidazo ion liquid is 1-alkyl-3-Methylimidazole hexafluorophosphate, and molecular formula is:
3. compsn as claimed in claim 1, its characteristic is 1-butyl-3-Methylimidazole hexafluorophosphate at alkyl imidazo ion liquid, molecular formula is:
The molecule formula IV.
4. compsn as claimed in claim 1, it is characterized in that having alkyl imidazo ion liquid is 1-hexyl-3-Methylimidazole hexafluorophosphate, molecular formula is:
The molecule formula V
5. compsn as claimed in claim 1 is characterized in that alkyl imidazo ion liquid is 1-octyl group-3-Methylimidazole hexafluorophosphate, and molecular formula is:
The molecule formula VI
6. compsn as claimed in claim 1 is characterized in that alkyl imidazo ion liquid is 1-certain herbaceous plants with big flowers base-3-Methylimidazole hexafluorophosphate, and molecular formula is:
Molecular formula (VII).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102341835A CN102337171A (en) | 2010-07-22 | 2010-07-22 | Ionic liquid polyurea grease composition |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102341835A CN102337171A (en) | 2010-07-22 | 2010-07-22 | Ionic liquid polyurea grease composition |
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|---|---|
| CN102337171A true CN102337171A (en) | 2012-02-01 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010102341835A Pending CN102337171A (en) | 2010-07-22 | 2010-07-22 | Ionic liquid polyurea grease composition |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110846106A (en) * | 2019-12-05 | 2020-02-28 | 中国科学院兰州化学物理研究所 | Ionic liquid-based conductive lubricating grease and preparation method thereof |
| CN114672364A (en) * | 2022-04-13 | 2022-06-28 | 中国科学院兰州化学物理研究所 | Conductive lubricating grease and preparation method thereof |
-
2010
- 2010-07-22 CN CN2010102341835A patent/CN102337171A/en active Pending
Non-Patent Citations (1)
| Title |
|---|
| MEIRONG CAI等: "Alkyl Imidazolium Ionic Liquids as Friction Reduction", 《TRIBOLOGY LETTERS》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110846106A (en) * | 2019-12-05 | 2020-02-28 | 中国科学院兰州化学物理研究所 | Ionic liquid-based conductive lubricating grease and preparation method thereof |
| CN110846106B (en) * | 2019-12-05 | 2021-09-14 | 中国科学院兰州化学物理研究所 | Ionic liquid-based conductive lubricating grease and preparation method thereof |
| CN114672364A (en) * | 2022-04-13 | 2022-06-28 | 中国科学院兰州化学物理研究所 | Conductive lubricating grease and preparation method thereof |
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Application publication date: 20120201 |