CN113072996A - High-speed heavy-load lubricating grease composition and preparation method thereof - Google Patents
High-speed heavy-load lubricating grease composition and preparation method thereof Download PDFInfo
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- CN113072996A CN113072996A CN202110448027.7A CN202110448027A CN113072996A CN 113072996 A CN113072996 A CN 113072996A CN 202110448027 A CN202110448027 A CN 202110448027A CN 113072996 A CN113072996 A CN 113072996A
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- 239000000203 mixture Substances 0.000 title claims abstract description 53
- 239000004519 grease Substances 0.000 title claims abstract description 52
- 230000001050 lubricating effect Effects 0.000 title claims abstract description 38
- 238000002360 preparation method Methods 0.000 title description 9
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 69
- 239000002199 base oil Substances 0.000 claims abstract description 41
- 239000003963 antioxidant agent Substances 0.000 claims abstract description 33
- 239000003755 preservative agent Substances 0.000 claims abstract description 33
- 230000002335 preservative effect Effects 0.000 claims abstract description 29
- 239000002562 thickening agent Substances 0.000 claims abstract description 25
- 230000003078 antioxidant effect Effects 0.000 claims abstract description 24
- 239000013556 antirust agent Substances 0.000 claims abstract description 21
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical group [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims abstract description 20
- 239000011574 phosphorus Substances 0.000 claims abstract description 20
- 229910052698 phosphorus Inorganic materials 0.000 claims abstract description 20
- 239000003831 antifriction material Substances 0.000 claims abstract description 18
- QCJQWJKKTGJDCM-UHFFFAOYSA-N [P].[S] Chemical group [P].[S] QCJQWJKKTGJDCM-UHFFFAOYSA-N 0.000 claims abstract description 10
- 239000002994 raw material Substances 0.000 claims abstract description 8
- 239000003638 chemical reducing agent Substances 0.000 claims description 14
- 238000002156 mixing Methods 0.000 claims description 13
- 238000001816 cooling Methods 0.000 claims description 9
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 8
- 229910052744 lithium Inorganic materials 0.000 claims description 8
- 239000000344 soap Substances 0.000 claims description 8
- 238000000265 homogenisation Methods 0.000 claims description 6
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims description 5
- QRUDEWIWKLJBPS-UHFFFAOYSA-N benzotriazole Chemical compound C1=CC=C2N[N][N]C2=C1 QRUDEWIWKLJBPS-UHFFFAOYSA-N 0.000 claims description 5
- 239000012964 benzotriazole Substances 0.000 claims description 5
- 239000003112 inhibitor Substances 0.000 claims description 5
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims description 5
- 229910052750 molybdenum Inorganic materials 0.000 claims description 5
- 239000011733 molybdenum Substances 0.000 claims description 5
- 238000007670 refining Methods 0.000 claims description 5
- WJFKNYWRSNBZNX-UHFFFAOYSA-N 10H-phenothiazine Chemical compound C1=CC=C2NC3=CC=CC=C3SC2=C1 WJFKNYWRSNBZNX-UHFFFAOYSA-N 0.000 claims description 4
- 239000010696 ester oil Substances 0.000 claims description 4
- 229950000688 phenothiazine Drugs 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 3
- 125000001273 sulfonato group Chemical group [O-]S(*)(=O)=O 0.000 claims description 3
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 claims 1
- 150000001412 amines Chemical group 0.000 claims 1
- 230000003993 interaction Effects 0.000 abstract description 4
- 238000010438 heat treatment Methods 0.000 description 18
- 238000003756 stirring Methods 0.000 description 18
- 238000007789 sealing Methods 0.000 description 6
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 description 6
- 239000002131 composite material Substances 0.000 description 5
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 3
- 238000009776 industrial production Methods 0.000 description 3
- 239000011593 sulfur Substances 0.000 description 3
- 229910052717 sulfur Inorganic materials 0.000 description 3
- XQVWYOYUZDUNRW-UHFFFAOYSA-N N-Phenyl-1-naphthylamine Chemical compound C=1C=CC2=CC=CC=C2C=1NC1=CC=CC=C1 XQVWYOYUZDUNRW-UHFFFAOYSA-N 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- -1 decyl ester Chemical class 0.000 description 2
- 125000002704 decyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 2
- DMBHHRLKUKUOEG-UHFFFAOYSA-N diphenylamine Chemical compound C=1C=CC=CC=1NC1=CC=CC=C1 DMBHHRLKUKUOEG-UHFFFAOYSA-N 0.000 description 2
- 239000004312 hexamethylene tetramine Substances 0.000 description 2
- 238000007127 saponification reaction Methods 0.000 description 2
- WJUMWVJBOZKPPU-UHFFFAOYSA-N 2,3-bis(6-methylheptyl)-N-phenylaniline Chemical compound C(CCCCC(C)C)C=1C(=C(C=CC1)NC1=CC=CC=C1)CCCCCC(C)C WJUMWVJBOZKPPU-UHFFFAOYSA-N 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 229910000389 calcium phosphate Inorganic materials 0.000 description 1
- 239000001506 calcium phosphate Substances 0.000 description 1
- 235000011010 calcium phosphates Nutrition 0.000 description 1
- 239000000084 colloidal system Substances 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- QORWJWZARLRLPR-UHFFFAOYSA-H tricalcium bis(phosphate) Chemical compound [Ca+2].[Ca+2].[Ca+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O QORWJWZARLRLPR-UHFFFAOYSA-H 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M169/00—Lubricating compositions characterised by containing as components a mixture of at least two types of ingredient selected from base-materials, thickeners or additives, covered by the preceding groups, each of these compounds being essential
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M177/00—Special methods of preparation of lubricating compositions; Chemical modification by after-treatment of components or of the whole of a lubricating composition, not covered by other classes
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
- C10M2201/085—Phosphorus oxides, acids or salts
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2205/00—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions
- C10M2205/02—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing acyclic monomers
- C10M2205/0206—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing acyclic monomers used as base material
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant Compositions
- C10M2215/02—Amines, e.g. polyalkylene polyamines; Quaternary amines
- C10M2215/06—Amines, e.g. polyalkylene polyamines; Quaternary amines having amino groups bound to carbon atoms of six-membered aromatic rings
- C10M2215/064—Di- and triaryl amines
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant Compositions
- C10M2215/02—Amines, e.g. polyalkylene polyamines; Quaternary amines
- C10M2215/06—Amines, e.g. polyalkylene polyamines; Quaternary amines having amino groups bound to carbon atoms of six-membered aromatic rings
- C10M2215/064—Di- and triaryl amines
- C10M2215/065—Phenyl-Naphthyl amines
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant Compositions
- C10M2215/22—Heterocyclic nitrogen compounds
- C10M2215/223—Five-membered rings containing nitrogen and carbon only
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2219/00—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions
- C10M2219/10—Heterocyclic compounds containing sulfur, selenium or tellurium compounds in the ring
- C10M2219/104—Heterocyclic compounds containing sulfur, selenium or tellurium compounds in the ring containing sulfur and carbon with nitrogen or oxygen in the ring
- C10M2219/108—Phenothiazine
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Lubricants (AREA)
Abstract
The invention provides a high-speed heavy-load lubricating grease composition which is prepared from the following raw materials: 70-90 parts by weight of base oil; 10-20 parts of thickening agent; 0.5 to 3 weight portions of antioxidant; 0.2 to 1 weight part of preservative; 0.5 to 3 weight portions of extreme pressure agent; 0.5 to 3 weight portions of antiwear agent; 0.5 to 3 parts by weight of an antifriction agent; 0.5 to 3 parts by weight of an antirust agent; the extreme pressure agent is a sulfur-phosphorus extreme pressure agent; the antiwear agent is a phosphorus-containing antiwear agent. Compared with the prior art, the high-speed heavy-load lubricating grease composition provided by the invention adopts specific content components, so that the overall better interaction is realized, and the lubricating requirements of the engine bearing under high rotating speed and heavy load working conditions are met on the premise that the obtained high-speed heavy-load lubricating grease composition is stable in various performances.
Description
Technical Field
The invention relates to the technical field of lubricating grease compositions, in particular to a high-speed heavy-load lubricating grease composition and a preparation method thereof.
Background
With the rapid development of modern industry, the operation working condition of the bearing is more and more rigorous, the rotating speed is higher and higher, and the load is heavier and heavier; for this reason, the requirements for bearing grease are also becoming more stringent. The existing lubricating grease generally meets the working condition of high-speed light load or the working condition of low-speed heavy load, and cannot meet the requirement of high-speed heavy load at the same time.
Disclosure of Invention
In view of the above, the present invention provides a high-speed heavy-duty grease composition and a preparation method thereof, and the high-speed heavy-duty grease composition provided by the present invention simultaneously satisfies the lubrication requirements of the engine bearing under the high rotation speed and heavy load working conditions on the premise of stable performances.
The invention provides a high-speed heavy-load lubricating grease composition which is prepared from the following raw materials:
70-90 parts by weight of base oil;
10-20 parts of thickening agent;
0.5 to 3 weight portions of antioxidant;
0.2 to 1 weight part of preservative;
0.5 to 3 weight portions of extreme pressure agent;
0.5 to 3 weight portions of antiwear agent;
0.5 to 3 parts by weight of an antifriction agent;
0.5 to 3 parts by weight of an antirust agent;
the extreme pressure agent is a sulfur-phosphorus extreme pressure agent;
the antiwear agent is a phosphorus-containing antiwear agent.
Preferably, the base oil is selected from PAO and/or ester oils.
Preferably, the kinematic viscosity of the base oil at 100 ℃ is 6mm2/s～20mm2/s。
Preferably, the thickener is a complex lithium soap.
Preferably, the antioxidant is selected from amine-type antioxidants and/or phenol-type antioxidants.
Preferably, the preservative is selected from a benzotriazole preservative and/or a phenothiazine preservative.
Preferably, the friction reducer is selected from phosphorus-containing friction reducers and/or molybdenum-containing friction reducers.
Preferably, the antirust agent is a sulfonate antirust agent.
The invention also provides a preparation method of the high-speed heavy-load lubricating grease composition, which comprises the following steps:
a) mixing base oil and a thickening agent, saponifying, dehydrating, refining, cooling, adding an antioxidant, a preservative, an extreme pressure agent, an antiwear agent, an antifriction agent and an antirust agent, uniformly mixing, and homogenizing to obtain the high-speed heavy-load lubricating grease composition.
Preferably, the temperature of the homogenization treatment in the step a) is 100-120 ℃, and the time is 20-40 min.
The invention provides a high-speed heavy-load lubricating grease composition which is prepared from the following raw materials: 70-90 parts by weight of base oil; 10-20 parts of thickening agent; 0.5 to 3 weight portions of antioxidant; 0.2 to 1 weight part of preservative; 0.5 to 3 weight portions of extreme pressure agent; 0.5 to 3 weight portions of antiwear agent; 0.5 to 3 parts by weight of an antifriction agent; 0.5 to 3 parts by weight of an antirust agent; the extreme pressure agent is a sulfur-phosphorus extreme pressure agent; the antiwear agent is a phosphorus-containing antiwear agent. Compared with the prior art, the high-speed heavy-load lubricating grease composition provided by the invention adopts specific content components, so that the overall better interaction is realized, and the lubricating requirements of the engine bearing under high rotating speed and heavy load working conditions are met on the premise that the obtained high-speed heavy-load lubricating grease composition is stable in various performances.
In addition, the preparation method provided by the invention is simple, mild in condition and suitable for large-scale industrial production.
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 a high-speed heavy-load lubricating grease composition which is prepared from the following raw materials:
70-90 parts by weight of base oil;
10-20 parts of thickening agent;
0.5 to 3 weight portions of antioxidant;
0.2 to 1 weight part of preservative;
0.5 to 3 weight portions of extreme pressure agent;
0.5 to 3 weight portions of antiwear agent;
0.5 to 3 parts by weight of an antifriction agent;
0.5 to 3 parts by weight of an antirust agent;
the extreme pressure agent is a sulfur-phosphorus extreme pressure agent;
the antiwear agent is a phosphorus-containing antiwear agent.
In the invention, the high-speed heavy-load lubricating grease composition is prepared from raw materials including base oil, a thickening agent, an antioxidant, a preservative, an extreme pressure agent, an antiwear agent, an antifriction agent and an antirust agent, and is preferably prepared from the base oil, the thickening agent, the antioxidant, the preservative, the extreme pressure agent, the antiwear agent, the antifriction agent and the antirust agent.
In the present invention, the base oil is preferably selected from PAO and/or ester oils. In a preferred embodiment of the invention, the base oil is PAO 10; in another preferred embodiment of the invention, the base oil is PAO 20; in another preferred embodiment of the present invention, the base oil is a mixture of base oils in a mass ratio of 1: PAO10 and PAO20 of 1; in another preferred embodiment of the present invention, the base oil is a mixture of 3: 1 PAO20 and a decyl base oil; in another preferred embodiment of the present invention, the base oil is a mixture of 4: 3: 1 PAO10, PAO20, and decyl base oil. The source of the base oil is not particularly limited in the present invention, and commercially available products of the above-mentioned PAO and ester oil well known to those skilled in the art may be used.
In the present invention, the base oil is 100 deg.CThe kinematic viscosity is preferably 6mm2/s～20mm2/s。
In the present invention, the high-speed heavy duty grease composition comprises 70 to 90 parts by weight of base oil, preferably 80 parts by weight.
In the present invention, the thickener is preferably a complex lithium soap; commercially available products known to those skilled in the art may be used. In the present invention, the high-speed heavy-duty grease composition comprises 10 to 20 parts by weight of the thickener, preferably 15 to 16 parts by weight.
In the present invention, the antioxidant is preferably selected from amine-type antioxidants and/or phenol-type antioxidants, more preferably phenol-type antioxidants. The source of the antioxidant is not particularly limited in the present invention, and commercially available products of the above-mentioned amine-type antioxidants (e.g., diphenylamine, diisooctyldiphenylamine, N-phenyl-alpha-naphthylamine) and phenol-type antioxidants (e.g., Ciba L101, L135) known to those skilled in the art can be used. In the present invention, the high-speed heavy-duty grease composition includes 0.5 to 3 parts by weight of an antioxidant.
In the present invention, the preservative is preferably selected from a benzotriazole preservative and/or a phenothiazine preservative, more preferably a benzotriazole preservative. The present invention is not particularly limited in terms of the source of the preservative, and commercially available products of the above-mentioned benzotriazole preservatives (e.g., T706, T551) and phenothiazine preservatives known to those skilled in the art may be used. In the present invention, the high-speed heavy-duty grease composition includes 0.2 to 1 part by weight of a preservative.
In the present invention, the extreme pressure agent is a sulfur-phosphorus extreme pressure agent (e.g., shanghai yucheng E239, jafudun H317, H307, H3339); the antiwear agent is a phosphorus-containing antiwear agent (such as TCP and T304); commercially available products well known to those skilled in the art may be used. In the present invention, the high-speed heavy-duty grease composition includes 0.5 to 3 parts by weight of an extreme pressure agent; the high-speed heavy-duty grease composition comprises 0.5 to 3 parts by weight of an antiwear agent, preferably 1 to 3 parts by weight.
In the present invention, the friction reducer is preferably selected from phosphorus-containing friction reducers and/or molybdenum-containing friction reducers, more preferably molybdenum-containing friction reducers. The source of the friction reducer is not particularly limited in the present invention, and commercially available products of the above-mentioned phosphorus-containing friction reducers (e.g., calcium phosphate, T309) and molybdenum-containing friction reducers (e.g., T351, 1002A from Pacific additives Co., Ltd.) known to those skilled in the art can be used. In the present invention, the high-speed heavy duty grease composition comprises 0.5 to 3 parts by weight of a friction reducer, preferably 1 to 3 parts by weight.
In the present invention, the rust inhibitor is preferably a sulfonate-based rust inhibitor (e.g., T705, RC4810, NA SUL 450 by Rhine); commercially available products known to those skilled in the art may be used. In the present invention, the high-speed heavy-duty grease composition comprises 0.5 to 3 parts by weight of a rust inhibitor, preferably 1 to 3 parts by weight.
The high-speed heavy-load lubricating grease composition provided by the invention adopts specific content components, so that the overall better interaction is realized, and the lubricating requirements of the engine bearing under high rotating speed and heavy load working conditions are met on the premise that the obtained high-speed heavy-load lubricating grease composition is stable in various performances.
The invention also provides a preparation method of the high-speed heavy-load lubricating grease composition, which comprises the following steps:
a) mixing base oil and a thickening agent, saponifying, dehydrating, refining, cooling, adding an antioxidant, a preservative, an extreme pressure agent, an antiwear agent, an antifriction agent and an antirust agent, uniformly mixing, and homogenizing to obtain the high-speed heavy-load lubricating grease composition.
In the invention, the base oil, the thickening agent, the antioxidant, the preservative, the extreme pressure agent, the antiwear agent, the antifriction agent and the antirust agent are the same as those in the technical scheme, and are not described again.
In the invention, the device for mixing the base oil and the thickening agent is preferably an autoclave; on the basis, the preferable saponification process after mixing the base oil and the thickening agent is as follows:
adding the base oil and the thickening agent into a pressure kettle, heating to 120-150 ℃, saponifying for 1-3 h under the pressure of 0.2-0.4 MPa, and releasing pressure;
more preferably:
adding the base oil and the thickening agent into a pressure kettle, closing a sealing cover, heating to 130-140 ℃ under the stirring condition of 70r/min, saponifying for 2 hours at constant temperature under the pressure of 0.3-0.4 MPa, and relieving pressure.
In the invention, the dehydration is preferably performed by heating; the refining temperature is preferably 180-200 ℃, and more preferably 180 ℃; the refining time is preferably 30min to 40min, and more preferably 30 min.
In the present invention, the temperature of the cooling is preferably 120 ℃ or lower.
In the invention, the antioxidant, the preservative, the extreme pressure agent, the antiwear agent, the antifriction agent and the antirust agent are preferably added and uniformly mixed in a stirring way; the rotation speed of the stirring is preferably 50r/min to 100r/min, and more preferably 70 r/min.
In the present invention, the temperature of the homogenization treatment is preferably 100 to 120 ℃; the time for the homogenization treatment is preferably 20min to 40min, more preferably 30 min.
The preparation method provided by the invention is simple, mild in condition and suitable for large-scale industrial production.
The invention provides a high-speed heavy-load lubricating grease composition which is prepared from the following raw materials: 70-90 parts by weight of base oil; 10-20 parts of thickening agent; 0.5 to 3 weight portions of antioxidant; 0.2 to 1 weight part of preservative; 0.5 to 3 weight portions of extreme pressure agent; 0.5 to 3 weight portions of antiwear agent; 0.5 to 3 parts by weight of an antifriction agent; 0.5 to 3 parts by weight of an antirust agent; the extreme pressure agent is a sulfur-phosphorus extreme pressure agent; the antiwear agent is a phosphorus-containing antiwear agent. Compared with the prior art, the high-speed heavy-load lubricating grease composition provided by the invention adopts specific content components, so that the overall better interaction is realized, and the lubricating requirements of the engine bearing under high rotating speed and heavy load working conditions are met on the premise that the obtained high-speed heavy-load lubricating grease composition is stable in various performances.
In addition, the preparation method provided by the invention is simple, mild in condition and suitable for large-scale industrial production.
To further illustrate the present invention, the following examples are provided for illustration. The raw materials used in the following examples of the present invention are all commercially available; wherein the antioxidant is L101 of ciba company, the preservative is T706, the sulfur-phosphorus extreme pressure agent is E239 made by Shanghai province, the phosphorus-containing antiwear agent is T304, the antifriction agent is 1002A of Taiyang additive company, and the sulfonate antirust agent is RC4810 of Rhine company.
Example 1
Adding 80 parts by weight of PAO10 base oil and 15 parts by weight of composite lithium soap thickener into a pressure kettle, closing a sealing cover, heating to 130-140 ℃ under the stirring condition of 70r/min, keeping the pressure at 0.3-0.4 MPa, saponifying for 2h at constant temperature, relieving pressure, heating to dewater, heating to 180 ℃, stirring for 30min at constant temperature, cooling to below 120 ℃, adding 0.5 part by weight of antioxidant, 0.5 part by weight of preservative, 0.5 part by weight of sulfur and phosphorus extreme pressure agent, 3 parts by weight of phosphorus-containing antiwear agent, 1 part by weight of antifriction agent and 3 parts by weight of sulfonate antirust agent, mixing uniformly under the stirring condition of 70r/min, and then homogenizing at 100-120 ℃ for 30min to obtain the lubricating grease composition with high speed and heavy load.
Example 2
Adding 80 parts by weight of PAO20 base oil and 16 parts by weight of composite lithium soap thickener into a pressure kettle, closing a sealing cover, heating to 130-140 ℃ under the stirring condition of 70r/min, keeping the pressure at 0.3-0.4 MPa, saponifying for 2h at constant temperature, relieving pressure, heating to dewater, heating to 180 ℃, stirring for 30min at constant temperature, cooling to below 120 ℃, adding 1 part by weight of antioxidant, 0.2 part by weight of preservative, 3 parts by weight of sulfur-phosphorus extreme pressure agent, 1 part by weight of phosphorus-containing antiwear agent, 3 parts by weight of homogenizing agent and 1 part by weight of sulfonate antirust agent, mixing uniformly under the stirring condition of 70r/min, and then carrying out homogenization treatment for 30min at 100-120 ℃ to obtain the high-speed heavy-load lubricating grease composition.
Example 3
Adding 40 parts by weight of PAO10 base oil, 40 parts by weight of PAO20 base oil and 15 parts by weight of composite lithium soap thickening agent into a pressure kettle, closing a sealing cover, heating to 130-140 ℃ under the stirring condition of 70r/min, keeping the pressure at 0.3-0.4 MPa, carrying out constant-temperature saponification for 2h, relieving pressure, heating to dehydrate, heating to 180 ℃, carrying out constant-temperature stirring for 30min, cooling to below 120 ℃, adding 2 parts by weight of antioxidant, 1 part by weight of preservative, 2 parts by weight of sulfur and phosphorus extreme pressure agent, 2 parts by weight of phosphorus antiwear agent, 2 parts by weight of antifriction agent and 2 parts by weight of sulfonate antirust agent, uniformly mixing under the stirring condition of 70r/min, and carrying out homogenization treatment at 100-120 ℃ for 30min to obtain the high-speed heavy-load lubricating grease composition.
Example 4
Adding 60 parts by weight of PAO20 base oil, 20 parts by weight of decyl ester base oil and 16 parts by weight of composite lithium soap thickening agent into a pressure kettle, closing a sealing cover, heating to 130-140 ℃ under the condition of stirring at 70r/min, keeping the pressure at 0.3-0.4 MPa, saponifying at constant temperature for 2h, relieving pressure, heating to dehydrate, heating to 180 ℃, keeping the temperature and stirring for 30min at constant temperature, cooling to below 120 ℃, adding 3 parts by weight of antioxidant, 0.5 part by weight of preservative, 3 parts by weight of sulfur and phosphorus extreme pressure agent, 1 part by weight of phosphorus-containing antiwear agent, 1 part by weight of antifriction agent and 3 parts by weight of sulfonate antirust agent, uniformly mixing under the condition of stirring at 70r/min, and then homogenizing at 100-120 ℃ for 30min to obtain the high-speed heavy-load lubricating grease composition.
Example 5
Adding 40 parts by weight of PAO10 base oil, 30 parts by weight of PAO20 base oil, 10 parts by weight of decyl ester base oil and 15 parts by weight of composite lithium soap thickening agent into a pressure kettle, closing a sealing cover, heating to 130-140 ℃ under the stirring condition of 70r/min, saponifying for 2 hours at constant temperature under the pressure of 0.3-0.4 MPa, relieving pressure, heating to dewater, heating to 180 ℃, stirring for 30min at constant temperature, cooling to below 120 ℃, adding 1 part by weight of antioxidant, 0.5 part by weight of preservative, 3 parts by weight of sulfur-phosphorus extreme pressure agent, 2 parts by weight of phosphorus-containing antiwear agent, 1 part by weight of antifriction agent and 3 parts by weight of sulfonate antirust agent, uniformly mixing under the stirring condition of 70r/min, and then homogenizing for 30min at 100-120 ℃ to obtain the high-speed heavy-load lubricating grease composition.
The properties of the high-speed heavy-duty grease compositions prepared in examples 1 to 5 were analyzed, and the analysis results are shown in table 1.
TABLE 1 data of various properties of the high-speed heavy-duty grease compositions prepared in examples 1 to 5
As can be seen from Table 1, the high-speed heavy-load lubricating grease composition prepared in the embodiments 1 to 5 of the invention has excellent high-temperature performance, colloid stability, extreme-pressure anti-wear performance and anti-friction performance, solves the problems of lubricity and anti-friction performance at high rotating speed under heavy load condition, and meets the use requirement that the rotating speed reaches the high rotating speed of 37500rpm, and simultaneously the load reaches the overweight load requirement of 10000N; the lubricating device is suitable for lubricating the engine bearing under the high-speed heavy load working condition and is also suitable for lubricating the high-speed heavy load bearing in other industries; has obvious economic benefit and social benefit.
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. A high-speed heavy-load lubricating grease composition is prepared from the following raw materials:
70-90 parts by weight of base oil;
10-20 parts of thickening agent;
0.5 to 3 weight portions of antioxidant;
0.2 to 1 weight part of preservative;
0.5 to 3 weight portions of extreme pressure agent;
0.5 to 3 weight portions of antiwear agent;
0.5 to 3 parts by weight of an antifriction agent;
0.5 to 3 parts by weight of an antirust agent;
the extreme pressure agent is a sulfur-phosphorus extreme pressure agent;
the antiwear agent is a phosphorus-containing antiwear agent.
2. High speed heavy grease composition according to claim 1, characterized in that the base oil is selected from PAO and/or ester oils.
3. The high speed heavy duty grease composition according to claim 1, wherein said base oil has a kinematic viscosity at 100 ℃ of 6mm2/s～20mm2/s。
4. The high speed heavy duty grease composition according to claim 1, wherein said thickener is a complex lithium soap.
5. The high speed heavy duty grease composition according to claim 1, wherein said antioxidant is selected from amine type antioxidants and/or phenol type antioxidants.
6. The high speed heavy duty grease composition according to claim 1, wherein said preservative is selected from the group consisting of benzotriazole preservatives and/or phenothiazine preservatives.
7. High speed heavy duty grease composition according to claim 1, characterised in that said friction reducing agent is selected from phosphorus containing friction reducing agents and/or molybdenum containing friction reducing agents.
8. The high-speed heavy-duty grease composition according to claim 1, wherein the rust inhibitor is a sulfonate-based rust inhibitor.
9. A method for preparing a high-speed heavy-duty grease composition according to any one of claims 1 to 8, comprising the steps of:
a) mixing base oil and a thickening agent, saponifying, dehydrating, refining, cooling, adding an antioxidant, a preservative, an extreme pressure agent, an antiwear agent, an antifriction agent and an antirust agent, uniformly mixing, and homogenizing to obtain the high-speed heavy-load lubricating grease composition.
10. The method according to claim 9, wherein the temperature of the homogenization treatment in step a) is 100 to 120 ℃ and the time is 20 to 40 min.
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