CN102311853A - Aviation lubricating oil composition - Google Patents
Aviation lubricating oil composition Download PDFInfo
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- CN102311853A CN102311853A CN201110233390A CN201110233390A CN102311853A CN 102311853 A CN102311853 A CN 102311853A CN 201110233390 A CN201110233390 A CN 201110233390A CN 201110233390 A CN201110233390 A CN 201110233390A CN 102311853 A CN102311853 A CN 102311853A
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Abstract
The invention relates to an aviation lubricating oil composition. The composition comprises, by weight, 70-90 parts of polyalphaolefin, 10-30 parts of a diester, 0.5-2.0 parts of p,p'-diisooctyldiphenylamine, 0.5-2.0 parts of N-phenyl-alpha-naphthylamine, 0.05-0.1 parts of benzotriazol, 2.5-3 parts of tritolyl phosphate, and 10-100ppm of a glycidyl ether ester.
Description
Technical field
The present invention relates to a kind of lubricating oil composition, especially a kind of aircraft oil compsn.
Background technology
Aircraft oil is the lubricating oil that is used for aircraft engine; It has functions such as lubricated, sealing, cleaning and heat exchange; The development of the technology of making along with present generation aircraft, it has special demands good low temperature and starts and the high-temperature thermal oxidation stability, satisfies above-mentioned performance simultaneously and existing aircraft oil is very difficult; Lubricating oil of the present invention can be good at satisfying simultaneously above-mentioned performance, can be widely used in military, civilian aircraft.
RO100992A discloses a kind of aircraft oil, and it comprises two (2-ethylhexyl) sebate and additive of main amount.But this lubricating oil facile hydrolysis is big to metal protection, also is prone to cause the expansion of rubber seal simultaneously.
US6750182B1 discloses a kind of ester group industrial lubricant that contains sour trapping agent, when containing a spot of polyalphaolefin, can improve sedimentation function.But the ester group oil-contg is higher, and still can there be hydrolysis problem in long-time use, can't avoid corrosion of metal.
Summary of the invention
The objective of the invention is deficiency, provide a kind of performance especially after long-time the use, also to have the excellent cold-starting and the aircraft oil of high-temperature thermal oxidation stability comprehensively to existing aircraft oil.
Aircraft oil compsn of the present invention comprises: polyalphaolefin 70-90 weight part, dibasic acid esters 10-30 weight part, right, to ' di-iso-octyldiphenylamine 0.5-2.0 weight part and N-PA 0.5-2.0 weight part, benzotriazole 0.05-0.1 weight part, tritolyl phosphate 2.5-3 weight part, Racemic glycidol ether-ether 10-100ppm weight part.
Wherein preferably via the PAO-4 of decene preparation, its physical and chemical index is following for polyalphaolefin:
| Project | Representative data | Analytical procedure |
| Kinematic viscosity, cSt | ASTM?D445 | |
| 100℃ | 3.6 | |
| 40℃ | 16.9 | |
| -40℃ | 2420 | |
| Viscosity index | 123 | ASTM?D2270 |
| Noack vaporization losses | 11 | ASTM?D5800 |
| Density (20/20 ℃) | 0.820 | ASTM?D1298 |
| Pour point (℃) | -73 | ASTM?D97 |
| Flash-point (COC) (℃) | 219 | ASTM?D92 |
| Burning-point (COC) (℃) | 249 | ASTM?D92 |
| Outward appearance | As clear as crystal | ASTM?D4176 |
| Smell | Free from extraneous odour | ASTM?D1296 |
| The Pt-Co colorimetric | 0 | ASTM?D1209 |
The preferred dioctyl sebacate of dibasic acid esters, two-LAURIC ACID 99 MIN (2), two (2-ethylhexyl) sebate one or more, especially preferred two (2-ethylhexyl) sebate.
The Racemic glycidol ether-ether has formula:
Wherein to be preferably carbon number be 4 to 21 straight or branched alkyl to R1, the preferred 6-18 of carbon number, more preferably 9-15, most preferably 11-13.
Aircraft oil preparation of compositions method of the present invention may further comprise the steps:
The first step: mix with heating up to be stirred to fully in polyalphaolefin 70-90 weight part and the dibasic acid esters 10-30 weight part adding reactor drum;
Second step: it is right to add successively; Right ' di-iso-octyldiphenylamine 0.5-2.0 weight part and N-PA 0.5-2.0 weight part, benzotriazole 0.05-0.1 weight part, tritolyl phosphate 2.5-3 weight part, Racemic glycidol ether-ether 10-100ppm weight part, heating up is stirred to dissolving fully;
The 3rd step: the oil product in the reactor drum is cooled to room temperature, and is to be packaged.
Embodiment
Racemic glycidol ether-ether in following examples is:
Embodiment 1
Polyalphaolefin (PAO-4) 70 weight parts, two (2-ethylhexyl) sebate, 30 weight parts, right, to ' di-iso-octyldiphenylamine 2.0 weight parts, N-PA 0.5 weight part, benzotriazole 0.05 weight part, tritolyl phosphate 2.5 weight parts, Racemic glycidol ether-ether 80ppm weight part.
Embodiment 2
Polyalphaolefin (PAO-4) 80 weight parts, dioctyl sebacate 20 weight parts, right, to ' di-iso-octyldiphenylamine 0.5 weight part, N-PA 1.5 weight parts, benzotriazole 0.05 weight part, tritolyl phosphate 2.5 weight parts, Racemic glycidol ether-ether 50ppm weight part.
Embodiment 3
Polyalphaolefin (PAO-4) 90 weight parts, two (2-ethylhexyl) sebate, 5 weight parts, dioctyl sebacate 5 weight parts, right, to ' di-iso-octyldiphenylamine 1.0 weight parts, N-PA 1.0 weight parts, benzotriazole 0.1 weight part, tritolyl phosphate 3 weight parts, glycidyl ether 30ppm weight part.
Comparative Examples 1
Polyalphaolefin (PAO-4) 70 weight parts, two (2-ethylhexyl) sebate, 30 weight parts, N-PA 0.5 weight part.
It is right that base oil adds inhibitor, to ' composite effect of di-iso-octyldiphenylamine and N-PA sees table 1
Table 1
| Embodiment | After 200 ℃ of oxidations, octane-iso insolubles, % |
| 1 | 0.09 |
| 2 | 0.12 |
| 3 | 0.10 |
| Comparative Examples 1 | 0.48 |
The investigation of stability in storage:
It is logical that the lubricating oil composition of embodiment 1 is put into 4 liters of tinplate tins; Store under field conditions (factors); Took a sample at 3 months, 6 months, 9 months, 12 months and 18 months respectively and analyze; The result sees table 2, and experimental result shows that lubricating oil of the present invention physicochemical property in storage process is stable, no abnormal variation.
Table 2
Stability in storage is investigated
The compound back of base oil and additive physicochemical property is seen table 3, and excellent by the visible performance formula of the present invention of the result of table 3, various components have produced good synergy.
Table 3
Claims (8)
1. aircraft oil compsn; Said composition comprises: polyalphaolefin 70-90 weight part, dibasic acid esters 10-30 weight part, right, to ' di-iso-octyldiphenylamine 0.5-2.0 weight part and N-PA 0.5-2.0 weight part, benzotriazole 0.05-0.1 weight part, tritolyl phosphate 2.5-3 weight part, Racemic glycidol ether-ether 10-100ppm weight part.
2. aircraft oil compsn as claimed in claim 1 is characterized in that: polyalphaolefin is selected from the PAO-4 via the decene preparation.
3. aircraft oil compsn as claimed in claim 1 is characterized in that: dibasic acid esters is selected from one or more in dioctyl sebacate, two-LAURIC ACID 99 MIN (2,2-2 methyl isophthalic acid, ammediol) and two (2-ethylhexyl) sebate.
4. aircraft oil compsn as claimed in claim 1 is characterized in that: dibasic acid esters is two (2-ethylhexyl) sebate.
5. aircraft oil compsn as claimed in claim 1 is characterized in that: the Racemic glycidol ether-ether has following general formula:
Wherein R1 is that carbon number is 4 to 21 straight or branched alkyl.
6. aircraft oil compsn as claimed in claim 5 is characterized in that: R1 is that carbon number is the straight or branched alkyl of 6-18.
7. aircraft oil compsn as claimed in claim 6 is characterized in that: R1 is that carbon number is the straight or branched alkyl of 9-15.
8. aircraft oil compsn as claimed in claim 7 is characterized in that: R1 is that carbon number is the straight or branched alkyl of 11-13.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110233390 CN102311853B (en) | 2011-08-16 | 2011-08-16 | Aviation lubricating oil composition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110233390 CN102311853B (en) | 2011-08-16 | 2011-08-16 | Aviation lubricating oil composition |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102311853A true CN102311853A (en) | 2012-01-11 |
| CN102311853B CN102311853B (en) | 2013-04-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110233390 Expired - Fee Related CN102311853B (en) | 2011-08-16 | 2011-08-16 | Aviation lubricating oil composition |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106978240A (en) * | 2017-04-14 | 2017-07-25 | 上海欧勒奋生物科技有限公司 | A kind of PAO4 base oils and the lubricating oil for jet engine |
| CN111518604A (en) * | 2020-05-14 | 2020-08-11 | 中国石油化工股份有限公司 | Corrosion-resistant aircraft engine lubricating oil composition and preparation method thereof |
| CN112126500A (en) * | 2020-10-12 | 2020-12-25 | 中国石油化工股份有限公司 | Long-life oil-containing bearing oil composition and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1130398A (en) * | 1994-07-06 | 1996-09-04 | 三井石油化学工业株式会社 | Lubricating oil containing aromatic ether compound |
| CN101275099A (en) * | 2007-03-27 | 2008-10-01 | 株式会社日本能源 | Refrigerating machine oil for hydrocarbon refrigerant and refrigerating machine system using the same |
| CN101993766A (en) * | 2010-11-26 | 2011-03-30 | 无锡惠源包装有限公司 | Total synthesis shock absorber oil with high viscosity index |
-
2011
- 2011-08-16 CN CN 201110233390 patent/CN102311853B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1130398A (en) * | 1994-07-06 | 1996-09-04 | 三井石油化学工业株式会社 | Lubricating oil containing aromatic ether compound |
| CN101275099A (en) * | 2007-03-27 | 2008-10-01 | 株式会社日本能源 | Refrigerating machine oil for hydrocarbon refrigerant and refrigerating machine system using the same |
| CN101993766A (en) * | 2010-11-26 | 2011-03-30 | 无锡惠源包装有限公司 | Total synthesis shock absorber oil with high viscosity index |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106978240A (en) * | 2017-04-14 | 2017-07-25 | 上海欧勒奋生物科技有限公司 | A kind of PAO4 base oils and the lubricating oil for jet engine |
| CN106978240B (en) * | 2017-04-14 | 2020-06-05 | 安徽欧勒奋生物科技有限公司 | PAO4 base oil and lubricating oil for jet engine |
| CN111518604A (en) * | 2020-05-14 | 2020-08-11 | 中国石油化工股份有限公司 | Corrosion-resistant aircraft engine lubricating oil composition and preparation method thereof |
| CN112126500A (en) * | 2020-10-12 | 2020-12-25 | 中国石油化工股份有限公司 | Long-life oil-containing bearing oil composition and preparation method thereof |
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| Publication number | Publication date |
|---|---|
| CN102311853B (en) | 2013-04-24 |
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Granted publication date: 20130424 Termination date: 20130816 |