CN102311853B - Aviation lubricating oil composition - Google Patents
Aviation lubricating oil composition Download PDFInfo
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- CN102311853B CN102311853B CN 201110233390 CN201110233390A CN102311853B CN 102311853 B CN102311853 B CN 102311853B CN 201110233390 CN201110233390 CN 201110233390 CN 201110233390 A CN201110233390 A CN 201110233390A CN 102311853 B CN102311853 B CN 102311853B
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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 aviation lubricating oil composition.
Background technology
Aircraft oil is the lubricating oil for aircraft engine, it has the functions such as lubricated, sealing, cleaning and heat exchange, the development of the technology of making along with present generation aircraft, it has good low temperature startup and high-temperature thermal oxidation stability special requirement, and existing aircraft oil is difficult to satisfy simultaneously above-mentioned performance, 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 large to metal protection, also easily causes simultaneously the expansion of rubber seal.
US6750182B1 discloses a kind of ester group industrial lubricant that contains sour trapping agent, can improve sedimentation function when containing a small amount of polyalphaolefin.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 the deficiency for existing aircraft oil, provide a kind of performance especially after long-time the use, also to have excellent cold-starting and the aircraft oil of high-temperature thermal oxidation stability comprehensively.
Aviation lubricating oil composition of the present invention comprises: polyalphaolefin 70-90 weight part, diester 10-30 weight part, right, to ' di-iso-octyldiphenylamine 0.5-2.0 weight part and N-phenyl-a-naphthylamine 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 as follows for polyalphaolefin:
The preferred dioctyl sebacate of diester, 2，2-dimethyl-1，3-propanediol dilaurate, two (2-ethylhexyl) sebate one or more, especially preferred two (2-ethylhexyl) sebate.
The Racemic glycidol ether-ether has following general 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.
The preparation method of aviation lubricating oil composition of the present invention may further comprise the steps:
The first step: mix heating up to be stirred to fully in polyalphaolefin 70-90 weight part and the diester 10-30 weight part adding reactor;
Second step: it is right to add successively, right ' di-iso-octyldiphenylamine 0.5-2.0 weight part and N-phenyl-α-naphthylamines 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 fully dissolving;
The 3rd step: the oil product in the reactor 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-phenyl-a-naphthylamine 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-phenyl-a-naphthylamine 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-phenyl-a-naphthylamine 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-phenyl-a-naphthylamine 0.5 weight part.
Base oil adds antioxidant pair, to ' composite effect of di-iso-octyldiphenylamine and N-phenyl-a-naphthylamine 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:
The lubricating oil composition of embodiment 1 is put into 4 liters of tinplates logical, store under field conditions (factors), took a sample at 3 months, 6 months, 9 months, 12 months and 18 months respectively and analyze, the results are shown in Table 2, experimental result shows that lubricating oil of the present invention physicochemical property in storage process is stable, without unusually changing.
Table 2
Stability in storage is investigated
The compound rear physicochemical property of base oil and additive sees 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. aviation lubricating oil composition, said composition comprises: polyalphaolefin 70-90 weight part, diester 10-30 weight part, right, to ' di-iso-octyldiphenylamine 0.5-2.0 weight part and N-phenyl-a-naphthylamine 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. aviation lubricating oil composition as claimed in claim 1 is characterized in that: polyalphaolefin is selected from the PAO-4 via the decene preparation.
3. aviation lubricating oil composition as claimed in claim 1, it is characterized in that: diester is selected from one or more in dioctyl sebacate, 2，2-dimethyl-1，3-propanediol dilaurate and two (2-ethylhexyl) sebate.
4. aviation lubricating oil composition as claimed in claim 1, it is characterized in that: diester is two (2-ethylhexyl) sebate.
5. aviation lubricating oil composition as claimed in claim 1, it 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. aviation lubricating oil composition as claimed in claim 5, it is characterized in that: R1 is that carbon number is the straight or branched alkyl of 6-18.
7. aviation lubricating oil composition as claimed in claim 6, it is characterized in that: R1 is that carbon number is the straight or branched alkyl of 9-15.
8. aviation lubricating oil composition as claimed in claim 7, it 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 |
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| Publication Number | Publication Date |
|---|---|
| CN102311853A CN102311853A (en) | 2012-01-11 |
| CN102311853B true 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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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1045791C (en) * | 1994-07-06 | 1999-10-20 | 三井化学株式会社 | Lubricating oil containing aromatic ether compound |
| JP5318358B2 (en) * | 2007-03-27 | 2013-10-16 | Ｊｘ日鉱日石エネルギー株式会社 | Refrigerating machine oil for hydrocarbon refrigerant and refrigerating machine system using the same |
| CN101993766B (en) * | 2010-11-26 | 2012-11-21 | 江苏惠源石油科技有限公司 | Total synthesis shock absorber oil with high viscosity index |
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