CN115678652A - Lubricating oil composition for aircraft engine and preparation method thereof - Google Patents
Lubricating oil composition for aircraft engine and preparation method thereof Download PDFInfo
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- CN115678652A CN115678652A CN202211340269.5A CN202211340269A CN115678652A CN 115678652 A CN115678652 A CN 115678652A CN 202211340269 A CN202211340269 A CN 202211340269A CN 115678652 A CN115678652 A CN 115678652A
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Abstract
The invention relates to the technical field of lubricating oil, in particular to an aircraft engine lubricating oil composition and a preparation method thereof. The aircraft engine lubricating oil composition comprises the following components in parts by weight: 1.5 to 3.0 portions of phosphorus-containing antiwear extreme pressure agent; 0.01-0.2 part of benzotriazole derivative anticorrosive agent; 0.3 to 1.7 portions of aniline antioxidant; 0.8-3.0 parts of aromatic amine dimer antioxidant; 60-80 parts of synthetic ester base oil; 20-40 parts of polyether base oil. The raw material components adopted by the invention can well interact under a specific proportion, and the obtained lubricating oil composition for the aircraft engine has higher viscosity, excellent viscosity-temperature performance, lower pour point and oxidation corrosion resistance, and meets the application requirements of the aircraft lubricating oil in increasingly harsh working environments.
Description
Technical Field
The invention relates to the technical field of lubricating oil, in particular to an aircraft engine lubricating oil composition and a preparation method thereof.
Background
With the continuous development of aircraft engines, mineral oils gradually appear to be unable to meet the lubrication requirements of aircraft engines, and oxidative instability and insufficient viscosity index at high temperatures are two of the main considerations that have led to the search for alternative fluids. The synthetic aircraft engine oil is developed from the end of the 20 th century and the 50 th century in China, and a plurality of synthetic aircraft engine oils with different viscosities are developed and produced up to now. The high-viscosity synthetic aircraft engine oil is easier to form a lubricating oil film than medium-viscosity and/or low-viscosity aircraft engine oil, is more favorable for effectively lubricating the aircraft engine under the conditions of high temperature and high load, and is suitable for aircraft engines with higher requirements on lubrication. Therefore, the development of the high-viscosity synthetic lubricating oil for the aero-engine is of great significance to practical application.
The Chinese patent with publication number CN111518604A provides an anti-corrosion type aircraft engine lubricating oil composition, which is prepared from the following raw materials: 100 parts by weight of base oil; 0.5 to 3 parts by weight of diisooctyl diphenylamine; 0.5 to 3 weight portions of N-phenyl-alpha-naphthylamine; 1-5 parts by weight of tricresyl phosphate; 0.01 to 0.2 weight portions of benzotriazole; 0.001 to 0.3 parts by weight of an amine phosphate derivative; 0.001 to 0.4 parts by weight of a phosphorus dihydroxydithiophosphate derivative. The components with specific contents are adopted to realize better interaction, and the obtained corrosion-resistant aircraft engine lubricating oil composition has excellent corrosion resistance and is suitable for sealing and rust prevention of aircraft turbine engines and use of aircraft engines in marine environments.
Hao Jingtuan and others introduce RIPP4058 aviation turbine engine lubricating oil (4058 lubricating oil for short) with viscosity grade of 5 centistokes in the document "diester lubricating oil performance characteristic research progress" (Guangzhou chemical industry, vol 43, no 12), which has excellent high-temperature stability, lubricating performance, physical and chemical properties and material compatibility, and the overall performance is equivalent to that of foreign advanced products.
However, the lubricating oils mentioned in the above prior arts are of 3 centistokes and 5 centistokes viscosity grades, respectively, and are liable to run off in a high-temperature and high-load environment, resulting in large oil loss.
With the development progress of the aero-engine, the lubricating system has outstanding high-temperature high-load working condition characteristics, the requirement on high-viscosity aero-engine oil is gradually obvious, and the high-viscosity aero-engine synthetic lubricating oil which has excellent viscosity-temperature characteristics and better high-temperature oxidation resistance and corrosion resistance can be applied to the field of harsh environment to meet the development trend.
Disclosure of Invention
In view of the above, the technical problem to be solved by the present invention is to provide an aircraft engine lubricating oil composition and a preparation method thereof, and the aircraft engine lubricating oil composition provided by the present invention has high viscosity, excellent viscosity-temperature performance and excellent oxidation corrosion resistance.
The invention provides an aircraft engine lubricating oil composition, which comprises the following components in parts by weight:
preferably, the part by weight of the benzotriazole derivative anticorrosive agent is 0.01-0.1 part.
Preferably, the part by weight of the benzotriazole derivative anticorrosive agent is 0.01-0.02 part.
Preferably, the aniline antioxidant accounts for 0.5-1.5 parts by weight.
Preferably, the weight portion of the arylamine dimer antioxidant is 1.0-3.0 portions.
Preferably, the synthetic ester base oil accounts for 65-75 parts by weight.
Preferably, the weight portion of the polyether base oil is 25-35 parts.
Preferably, the phosphorus-containing anti-wear extreme pressure agent comprises tricresyl phosphate;
the benzotriazole derivative anticorrosive agent comprises benzotriazole.
Preferably, the aniline antioxidant comprises diisooctyl diphenylamine;
the aromatic amine dimer antioxidant comprises an antioxidant AO337.
The present invention also provides a process for the preparation of an aircraft engine lubricating oil composition as described above, comprising the steps of:
and uniformly mixing the phosphorus-containing antiwear extreme pressure agent, the benzotriazole derivative anticorrosive agent, the aniline antioxidant, the arylamine dimer antioxidant, the synthetic ester base oil and the polyether base oil at the temperature of between 80 and 100 ℃ to obtain the aircraft engine lubricating oil composition.
The invention provides an aircraft engine lubricating oil composition, which comprises the following components in parts by weight: 1.5 to 3.0 portions of phosphorus-containing antiwear extreme pressure agent; 0.01-0.2 part of benzotriazole derivative anticorrosive agent; 0.3 to 1.7 portions of aniline antioxidant; 0.8-3.0 parts of aromatic amine dimer antioxidant; 60-80 parts of synthetic ester base oil; 20-40 parts of polyether base oil. The raw material components adopted by the invention can well interact under a specific proportion, and the obtained lubricating oil composition for the aircraft engine has higher kinematic viscosity at 100 ℃, excellent viscosity-temperature performance, lower pour point and oxidation corrosion resistance, and meets the application requirements of the aircraft lubricating oil in increasingly harsh working environments.
Experimental results show that the kinematic viscosity (100 ℃) of the aircraft engine lubricating oil composition provided by the invention is not less than 7.642mm 2 S, kinematic viscosity (-40 ℃) is less than or equal to 9677mm 2 The change of kinematic viscosity at 40 ℃ is less than or equal to 6.93 percent and the change of acid value is less than or equal to 1.28mgKOH/g after the oxidation at 175 ℃,72h,83mL/min and the pour point is less than or equal to 57 ℃, the weight changes of the steel, copper, aluminum, magnesium and silver metal sheets are respectively 0.00mg/cm 2 、0.04～0.24mg/cm 2 、0.00mg/cm 2 、0.00～0.11mg/cm 2 、0.00mg/cm 2 . Therefore, the lubricating grease has higher viscosity, excellent viscosity-temperature performance, lower pour point and oxidation corrosion resistance.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments of the present invention, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention provides an aircraft engine lubricating oil composition, which comprises the following components in parts by weight:
in certain embodiments of the present invention, the phosphorus-containing anti-wear extreme pressure agent is present in an amount of 1.5 parts, 2 parts, or 3 parts by weight. The phosphorus-containing antiwear extreme pressure agent comprises tricresyl phosphate.
In certain embodiments of the present invention, the part by weight of the benzotriazole derivative corrosion inhibitor is 0.01 to 0.1 part; preferably, the part by weight of the benzotriazole derivative anticorrosive is 0.01-0.02 part; specifically, it may be 0.01 parts or 0.02 parts. The benzotriazole derivative anticorrosive agent comprises benzotriazole.
In some embodiments of the invention, the aniline antioxidant is 0.5-1.5 parts by weight; specifically, it may be 0.5 parts, 1 part, 1.2 parts or 1.5 parts. The aniline antioxidant comprises diisooctyl diphenylamine.
In certain embodiments of the present invention, the aromatic amine dimer antioxidant is present in an amount of 1.0 to 3.0 parts by weight; specifically, it may be 1.0 part, 2.0 parts or 3.0 parts. The arylamine dimer antioxidant comprises an antioxidant AO 337; specifically, NYCOPERF AO337 in Niaceae may be mentioned.
In certain embodiments of the present invention, the synthetic ester base oil is 65 to 75 parts by weight; specifically, it may be 70 parts. The synthetic ester base oil may include at least one of escerex a51, escerex 32, and escerex 41.
In certain embodiments of the present invention, the polyether base oil is present in an amount of 25 to 35 parts by weight; specifically, it may be 30 parts. The polyether base oil may include at least one of SDN06A and SDM 150W.
The present invention also provides a process for the preparation of an aircraft engine lubricating oil composition as described above, comprising the steps of:
and uniformly mixing the phosphorus-containing antiwear extreme pressure agent, the benzotriazole derivative anticorrosive agent, the aniline antioxidant, the arylamine dimer antioxidant, the synthetic ester base oil and the polyether base oil at the temperature of between 80 and 100 ℃ to obtain the aircraft engine lubricating oil composition.
In certain embodiments of the invention, the temperature of the blending is 90 ℃.
In certain embodiments of the invention, the blending is performed at atmospheric pressure.
The source of the above-mentioned raw materials is not particularly limited, and the raw materials may be generally commercially available.
In order to further illustrate the present invention, the following examples are provided to describe an aircraft engine lubricating oil composition and a method for preparing the same in detail, but should not be construed as limiting the scope of the present invention.
Examples 1 to 6
Mixing phosphorus-containing antiwear extreme pressure agent (tricresyl phosphate), benzotriazole derivative anticorrosive agent (benzotriazole), aniline antioxidant (diisooctyldiphenylamine), arylamine dimer antioxidant (NYCOPERF AO337 of Niaceae), synthetic ester base oil (ESTEREXA 51) and polyether base oil (SDN 06A) at 90 deg.C under normal pressure to obtain the aircraft engine lubricating oil composition.
The weight parts of the adopted raw material components are shown in table 1.
TABLE 1 parts by weight of the raw material components in examples 1 to 6
The performance of the lubricating oil compositions for aircraft engines prepared in examples 1 to 6 was evaluated, and the results are shown in Table 2.
TABLE 2 evaluation results of the properties of the lubricating oil compositions for aircraft engines of examples 1 to 6
As can be seen from Table 2, the kinematic viscosity (100 ℃) of the lubricating oil composition for the aircraft engine provided by the invention is not less than 7.35mm 2 S, kinematic viscosity (-40 ℃) is less than or equal to 13000mm 2 The pour point is less than or equal to 54 ℃, the kinematic viscosity change range at 40 ℃ is-10 to 10 percent after being oxidized at 175 ℃,72h and 83mL/min, the acid value change is not more than 2mgKOH/g, and the weight changes of the steel, copper, aluminum, magnesium and silver sheet metal are respectively +/-0.2 mg/cm 2 、±0.4mg/cm 2 、±0.2mg/cm 2 、±0.2mg/cm 2 、±0.2mg/cm 2 . Physical and chemical property evaluation experiments show that the kinematic viscosity (100 ℃) of the lubricating oil composition for the aero-engine provided by the invention is not less than 7.642mm 2 S, kinematic viscosity (-40 ℃) is less than or equal to 9677mm 2 The change of kinematic viscosity at 40 ℃ is less than or equal to 6.93 percent and the change of acid value is less than or equal to 1.28mgKOH/g after the oxidation at 175 ℃,72h,83mL/min and the pour point is less than or equal to 57 ℃, the weight changes of the steel, copper, aluminum, magnesium and silver metal sheets are respectively 0.00mg/cm 2 、0.04～0.24mg/cm 2 、0.00mg/cm 2 、0.00～0.11mg/cm 2 、0.00mg/cm 2 . Therefore, the lubricating grease has higher viscosity, excellent viscosity-temperature performance, lower pour point and oxidation corrosion resistance.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. An aircraft engine lubricating oil composition comprises the following components in parts by weight:
2. the lubricating oil composition for an aircraft engine according to claim 1, wherein the part by weight of the benzotriazole derivative corrosion inhibitor is 0.01 to 0.1 part.
3. The lubricating oil composition for an aircraft engine according to claim 1, wherein the part by weight of the benzotriazole derivative corrosion inhibitor is 0.01 to 0.02 part.
4. The aircraft engine lubricating oil composition according to claim 1, wherein the aniline antioxidant is 0.5 to 1.5 parts by weight.
5. The aircraft engine lubricating oil composition of claim 1, wherein the aromatic amine dimer antioxidant is present in an amount of 1.0 to 3.0 parts by weight.
6. The aircraft engine lubricating oil composition according to claim 1, wherein the synthetic ester base oil is 65 to 75 parts by weight.
7. The aircraft engine lubricating oil composition according to claim 1, wherein the polyether base oil is present in an amount of 25 to 35 parts by weight.
8. The aircraft engine lubricating oil composition of claim 1, wherein the phosphorus-containing anti-wear extreme pressure agent comprises tricresyl phosphate;
the benzotriazole derivative anticorrosive agent comprises benzotriazole.
9. The aircraft engine lubricating oil composition of claim 1, wherein the aniline antioxidant comprises diisooctyldiphenylamine;
the aromatic amine dimer antioxidant comprises an antioxidant AO337.
10. A method of preparing an aircraft engine lubricating oil composition according to any one of claims 1 to 9, comprising the steps of:
uniformly mixing the phosphorus-containing anti-wear extreme pressure agent, the benzotriazole derivative anticorrosive agent, the aniline antioxidant, the arylamine dimer antioxidant, the synthetic ester base oil and the polyether base oil at the temperature of between 80 and 100 ℃ to obtain the aircraft engine lubricating oil composition.
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| CN202211340269.5A CN115678652A (en) | 2022-10-28 | 2022-10-28 | Lubricating oil composition for aircraft engine and preparation method thereof |
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| CN202211340269.5A CN115678652A (en) | 2022-10-28 | 2022-10-28 | Lubricating oil composition for aircraft engine and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117487607A (en) * | 2023-11-02 | 2024-02-02 | 兴友新材料科技(山东)有限公司 | High-viscosity oil-soluble polyether lubricating oil composition and preparation method thereof |
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| EP1553079A2 (en) * | 2003-12-03 | 2005-07-13 | Orient Chemical Industries, Ltd. | Triarylamine dimer derivative having amorphous phase |
| JP2006257383A (en) * | 2005-02-15 | 2006-09-28 | Fuji Photo Film Co Ltd | Lubricant composition |
| CN101812358A (en) * | 2009-12-18 | 2010-08-25 | 益田润石（北京）化工有限公司 | High-temperature chain oil composition of mixed base oil |
| CN104403727A (en) * | 2014-10-17 | 2015-03-11 | 中国人民解放军空军油料研究所 | Low temperature fire-resistant hydraulic oil |
| 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 |
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- 2022-10-28 CN CN202211340269.5A patent/CN115678652A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1553079A2 (en) * | 2003-12-03 | 2005-07-13 | Orient Chemical Industries, Ltd. | Triarylamine dimer derivative having amorphous phase |
| JP2006257383A (en) * | 2005-02-15 | 2006-09-28 | Fuji Photo Film Co Ltd | Lubricant composition |
| CN101812358A (en) * | 2009-12-18 | 2010-08-25 | 益田润石（北京）化工有限公司 | High-temperature chain oil composition of mixed base oil |
| CN104403727A (en) * | 2014-10-17 | 2015-03-11 | 中国人民解放军空军油料研究所 | Low temperature fire-resistant hydraulic oil |
| 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 |
Non-Patent Citations (1)
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| 彭良溢等: "高黏度合成航空发动机油的研制", 《合成润滑材料》, vol. 48, no. 2 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117487607A (en) * | 2023-11-02 | 2024-02-02 | 兴友新材料科技(山东)有限公司 | High-viscosity oil-soluble polyether lubricating oil composition and preparation method thereof |
| CN117487607B (en) * | 2023-11-02 | 2024-05-31 | 兴友新材料科技(山东)有限公司 | High-viscosity oil-soluble polyether lubricating oil composition and preparation method thereof |
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