CN112646632B - Antifriction agent for engine oil and application thereof - Google Patents
Antifriction agent for engine oil and application thereof Download PDFInfo
- Publication number
- CN112646632B CN112646632B CN201910959252.XA CN201910959252A CN112646632B CN 112646632 B CN112646632 B CN 112646632B CN 201910959252 A CN201910959252 A CN 201910959252A CN 112646632 B CN112646632 B CN 112646632B
- Authority
- CN
- China
- Prior art keywords
- engine oil
- friction
- antifriction agent
- novel
- antifriction
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
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
- C10M135/00—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing sulfur, selenium or tellurium
- C10M135/12—Thio-acids; Thiocyanates; Derivatives thereof
- C10M135/14—Thio-acids; Thiocyanates; Derivatives thereof having a carbon-to-sulfur double bond
- C10M135/18—Thio-acids; Thiocyanates; Derivatives thereof having a carbon-to-sulfur double bond thiocarbamic type, e.g. containing the groups
-
- 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
- C10M2219/06—Thio-acids; Thiocyanates; Derivatives thereof
- C10M2219/062—Thio-acids; Thiocyanates; Derivatives thereof having carbon-to-sulfur double bonds
- C10M2219/066—Thiocarbamic type compounds
- C10M2219/068—Thiocarbamate metal salts
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 relates to the technical field of engine oil, in particular to a novel antifriction agent for engine oil and application thereof. The novel friction reducer provided by the invention comprises the following components in parts by weight: 30 to 50 portions of binary molybdenum antifriction agent, 10 to 25 portions of ternary molybdenum antifriction agent and 30 to 50 portions of ashless organic antifriction agent. The novel antifriction agent can be directly added into engine oil with energy-saving requirement, and the addition amount of the antifriction agent is 0.5-2% by weight percent. The novel antifriction agent provided by the invention has excellent antifriction performance, can effectively reduce the friction coefficient of engine oil with a small addition amount, improves the energy-saving performance of oil products, and does not have negative influence on other performances such as high-temperature detergency of the oil products.
Description
Technical Field
The invention relates to the technical field of engine oil, in particular to a novel antifriction agent for engine oil and application thereof.
Background
In recent years, global increases in oil prices and increasing scarcity of oil resources have placed increasingly stringent demands on automotive fuel economy. Meanwhile, the fuel economy evaluation standards for engine oils are also becoming more stringent. Therefore, increasingly higher demands are placed on the fuel economy of engine oils. The friction process is actually an energy consumption process, and energy consumption caused by useless friction is one of the main factors influencing fuel economy. Therefore, reducing the friction of the engine is an effective means for improving fuel economy.
Improving fuel economy with energy-efficient engine oils that reduce friction is currently one of the most important areas of engine oil development. The friction reducer can be adsorbed on the metal friction surface through physical or chemical reaction, so that a protective film is formed on the metal surface, the friction factor is reduced, and the friction reducing and wear resisting effects are achieved. At present, many automobile OEM manufacturers put higher requirements on other performances such as high-temperature detergency of oil products and the like while putting higher requirements on energy conservation of engine oil. Although more components with the friction reducing function are developed, the increasingly rigorous energy-saving requirements of automobile OEM manufacturers cannot be met by simply using one friction reducer, and some friction reducers can generate negative effects on other properties such as high-temperature detergency of oil products while improving the energy-saving property of the oil products, so that friction reducer products with better energy-saving effect and no obvious negative effects on other properties of the oil products need to be developed.
Disclosure of Invention
In order to solve the technical problems in the prior art, the invention aims to provide a novel friction reducer with excellent friction reducing and wear resisting properties, which can effectively reduce the friction coefficient of engine oil with less addition amount and simultaneously has no negative influence on other properties of oil products.
In order to achieve the purpose, the technical scheme of the invention is as follows:
in the process of researching and developing the antifriction agent for the engine oil, the invention discovers that although the organic molybdenum antifriction agent has better antifriction performance, the increasingly rigorous energy-saving requirements of automobile OEM manufacturers cannot be met by only using one antifriction agent, and the sulfur element and the nitrogen-containing group in the organic molybdenum antifriction agent can be easily and independently reacted with other components in the engine oil to influence the high-temperature detergency of the engine oil. According to the invention, a large number of researches and practices find that the problems can be well solved by compounding the binary molybdenum MoDTC and the ternary MoDTC and adding the ashless organic friction reducer on the basis, the novel friction reducer obtained by compounding the binary molybdenum MoDTC and the ternary MoDTC has excellent friction reducing performance, the friction coefficient of the engine oil can be effectively reduced by a small amount of addition, and the adverse effects on other performances such as high-temperature detergency and the like of the engine oil are ensured.
Specifically, the technical scheme of the invention is as follows:
the invention provides a novel antifriction agent for engine oil, which comprises the following components in parts by weight: 30 to 50 portions of binary molybdenum antifriction agent, 10 to 25 portions of ternary molybdenum antifriction agent and 30 to 50 portions of ashless organic antifriction agent.
Better antifriction performance can be obtained by controlling the mass ratio of the binary molybdenum antifriction agent to the ternary molybdenum antifriction agent in the novel antifriction agent.
Preferably, in the novel friction reducer, the mass ratio of the binary molybdenum friction reducer to the ternary molybdenum friction reducer is (1-5): 1. more preferably (1-3): 1.
in particular, the binary molybdenum friction reducer comprises binary molybdenum MoDTC; the structural general formula of the binary molybdenum MoDTC is as follows:
wherein R1-R4 are respectively one selected from linear or branched alkyl or alkenyl of C4-C18.
Preferably, R1 is a C8 linear or branched alkyl or alkenyl group. R2 is a C8 linear or branched alkyl or alkenyl group. R3 is a C13 linear or branched alkyl or alkenyl group. R4 is a C13 linear or branched alkyl or alkenyl group.
In the binary molybdenum MoDTC with the structure, binary molybdenum friction reducers S525, POUPC1002 and TDZ 4013 are selected to better promote the improvement of friction reducing performance through compounding. Thus, the binary molybdenum friction reducer is more preferably one or more selected from S525, POUPC1002, TDZ 4013.
Specifically, the ternary molybdenum friction reducer comprises ternary molybdenum MoDTC; the structural general formula of the ternary molybdenum MoDTC is as follows:
wherein R is one selected from C4-C9 alkyl; preferably a C4 alkyl group.
In the ternary molybdenum MoDTC with the structure, the ternary molybdenum friction reducer C9455B is selected to better promote the improvement of the friction reducing performance through the compounding. Thus, the ternary molybdenum friction reducer is preferably C9455B.
Specifically, the ashless organic friction reducer comprises an organic substance having a friction reducing function; the organic material having a friction reducing function contains C, H, O elements and does not contain S, P elements.
Preferably, the ashless organic friction reducer is one or more selected from the group consisting of Perfad 3000, Perfad 3050, Perfad 3057, Amadol 511, DuomeentoTDO, INF C9440, INF C9433.
Experiments prove that the most preferable friction reducer compounding mode of the invention is as follows: the binary molybdenum friction reducer is S525, the ternary molybdenum friction reducer is C9455B, and the ashless organic friction reducer is Perfad 3057. The novel friction reducer obtained by compounding the three friction reducers has more excellent friction reducing performance, can effectively reduce the friction coefficient of the engine oil by relatively minimum addition amount, and simultaneously furthest reduces the adverse effect on other performances of the engine oil.
As a preferable scheme of the invention, the novel friction reducer comprises the following components in parts by weight: s52535-45 parts, C9455B 15-25 parts, and Perfad 305735-45 parts.
The invention further provides the use of the novel friction reducer in the preparation of engine oil.
On the basis, the invention also provides engine oil which contains the novel friction reducer.
Preferably, in the engine oil, the mass percentage of the novel friction reducer is 0.5-2%. More preferably 1% to 2%.
The invention has the beneficial effects that:
the novel antifriction agent for engine oil provided by the invention has excellent antifriction performance, can effectively reduce the friction coefficient between friction parts, plays an anti-wear role and achieves the purpose of energy conservation; the friction coefficient of the engine oil can be effectively reduced by a small addition amount, the energy-saving property of the oil product is improved, and meanwhile, negative effects on other properties such as high-temperature cleaning property of the oil product and the like can not be generated.
Drawings
FIG. 1 shows the results of testing the antifriction and energy-saving properties of engine oil using an SRV friction and wear tester in Experimental example 2 of the present invention; wherein A is the test result for the engine oil of example 4; b is the test result of the engine oil of comparative example 2.
FIG. 2 is a graph showing the results of testing the anti-friction and energy-saving properties of engine oil using a High Frequency Reciprocating Rig (HFRR) tester in Experimental example 2 of the present invention; wherein A is the test result for the engine oil of example 4; b is the test result of the engine oil of comparative example 2.
FIG. 3 is a result of testing the anti-wear performance of engine oil using an SRV frictional wear tester in Experimental example 3 of the present invention; wherein A is the test result for the engine oil of example 4; b is the test result of the engine oil of comparative example 2.
FIG. 4 is a graph showing the results of measuring the anti-wear performance of engine oil using the four-ball wear scar diameter in Experimental example 3 of the present invention; wherein A is the test result for the engine oil of example 4; b is the test result of the engine oil of comparative example 2.
FIG. 5 is a graph showing the results of testing the detergency at a high temperature at the start of engine by the crankcase simulation test method (QZX method) in Experimental example 4 of the present invention; wherein A is the test result for the engine oil of example 4; b is the test result of the engine oil of comparative example 2; c is the test result of the engine oil of comparative example 3.
Detailed Description
Preferred embodiments of the present invention will be described in detail with reference to the following examples. It is to be understood that the following examples are given for illustrative purposes only and are not intended to limit the scope of the present invention. Various modifications and alterations of this invention will become apparent to those skilled in the art without departing from the spirit and scope of this invention.
The experimental procedures used in the following examples are all conventional procedures unless otherwise specified.
Materials, reagents and the like used in the following examples are commercially available unless otherwise specified, wherein S525 is available from ADEKA; C9455B was obtained from Union of Runki; perfad 3057 was purchased from Croda. The commercially available SN/GF-50W-20 engine oil used in all of the following examples and comparative examples was the same SN/GF-50W-20 engine oil, which was a J700F SN/GF-50W-20 engine oil available from China petrochemical lubricating oil, Inc.
The friction reducers in all the following examples and comparative examples were prepared as follows: mixing the components according to the mass ratio, and stirring for 2 hours at the temperature of 60-65 ℃ to mix uniformly.
Example 1
The embodiment provides a novel friction reducer, which consists of the following components in percentage by weight:
S525 42.9％；
C9455B 21.4％；
Perfad 3057 35.7％。
example 2
The embodiment provides a novel friction reducer, which consists of the following components in percentage by weight:
S525 35.7％；
C9455B 21.4％；
Perfad 3057 42.9％。
example 3
The embodiment provides a novel friction reducer, which consists of the following components in percentage by weight:
S525 45％；
C9455B 15％；
Perfad 3057 40％。
example 4
The embodiment provides engine oil which comprises the following components in percentage by weight: 1.4% of the novel friction reducer of example 1, and 98.6% of a commercially available SN/GF-50W-20 engine oil.
Example 5
The embodiment provides engine oil which comprises the following components in percentage by weight: 2% of the novel friction reducer of example 2, and 98% of a commercially available SN/GF-50W-20 engine oil.
Example 6
The embodiment provides engine oil which comprises the following components in percentage by weight: 1.5% of the novel friction reducer of example 3, and 98.5% of a commercially available SN/GF-50W-20 engine oil.
Comparative example 1
The comparative example provides an antifriction agent which comprises the following components in percentage by weight:
S525 100％
comparative example 2
The comparative example provides engine oil which comprises the following components in percentage by weight:
100% of commercially available SN/GF-50W-20 engine oil.
Comparative example 3
The comparative example provides engine oil which comprises the following components in percentage by weight:
0.75% of the friction reducer of comparative example 1, and 99.25% of a commercially available SN/GF-50W-20 engine oil.
Experimental example 1 elemental analysis of Engine oil
The engine oils of the above examples and comparative examples were analyzed for element content, respectively, and the results are shown in table 1.
TABLE 1 elemental analysis of engine oils
| Element content | Example 4 | Comparative example 2 | Comparative example 3 | Analytical method |
| Phosphorus content (mass fraction)% | 0.675 | 0.680 | 0.689 | GB/T 17476 |
| Molybdenum content (mass fraction)% | 0.076 | 0.004 | 0.077 | GB/T 17476 |
As can be seen from Table 1, the novel friction reducer of example 1 added to an engine oil product had no effect on the phosphorus content (the presence of phosphorus adversely affects the three-way catalyst) while increasing the energy saving effect of the oil (the molybdenum content increased).
Experimental example 2 antifriction Properties of Engine oil
The friction reducing and energy saving performance of the engine oils of the above examples and comparative examples was verified using an SRV friction wear tester and a high frequency reciprocating (HFRR) tester under the following test conditions:
the SRV test conditions were:
temperature: 80 ℃; loading: 200N; frequency: 50 Hz; amplitude: 1.0 mm; the operation period is as follows: and 2 h.
The HFRR test conditions were:
temperature: 80 ℃; loading: 400 g; frequency: 50 Hz; amplitude: 1.0 mm; the operation period is as follows: and (5) 90 min.
TABLE 2 analysis of antifriction and Economy Performance of Engine oils
The difference between SRV and HFRR is that SRV is more severe in test conditions, mainly simulating boundary lubrication regime, and HFRR mainly simulates mixed lubrication regime. The test results are shown in table 2 and fig. 1 (SRV), fig. 2(HFRR), and the results show that the friction coefficient of the engine oil of example 4 is reduced by 66.9% in the SRV test as compared with the engine oil of comparative example 2, and it can be seen that the friction reducing performance of the engine oil of example 4 is significantly better than that of the engine oil of comparative example 2; in the HFRR test, the friction coefficient of the engine oil of example 4 is reduced by 25% as compared with the engine oil of comparative example 2, and it can be seen that the friction reducing performance of the engine oil of example 4 is significantly better than that of the engine oil of comparative example 2.
The friction reducing and energy saving properties of the engine oils of examples 5 and 6 were analyzed by the same test method as described above, and the results showed that the friction reducing and energy saving properties of the engine oils of examples 5 and 6 were equivalent to those of the engine oil of example 4.
The above results demonstrate that the novel friction reducer for engine oil provided in embodiments 1 to 3 of the present invention has a very excellent energy saving effect.
Experimental example 3 anti-wear Properties of Engine oil
The engine oils of the above examples and comparative examples were tested for anti-wear performance using an SRV friction wear tester and four-ball wear diameter under the following test conditions:
the SRV test conditions were as above.
The four-ball grinding spot diameter test conditions are as follows:
temperature: 80 ℃; rotating speed: 1500 r/min; loading: 392N; the operation period is as follows: and (5) performing treatment for 60 min.
TABLE 3 antiwear Properties of Engine oils
The test results are shown in table 3 and fig. 3(SRV), fig. 4 (four ball wear diameter test), and the results show that the wear-resistant performance of the engine oil of example 4 is significantly better than that of the engine oil of comparative example 2, as the wear-resistant diameter of the engine oil of example 4 is reduced by 25.9% in the SRV test as compared with that of comparative example 2; in the four-ball test, the wear scar diameter of the engine oil of example 4 was reduced by 15.8% as compared to the engine oil of comparative example 2, and it can be seen that the anti-wear performance of the engine oil of example 4 was significantly better than that of the engine oil of comparative example 2.
The engine oils of examples 5 and 6 were analyzed for anti-wear properties using the same test method as described above, and the results showed that the engine oils of examples 5 and 6 had anti-wear properties equivalent to those of the engine oil of example 4.
The above results show that the novel friction reducers provided in embodiments 1 to 3 of the present invention improve the wear resistance of oil products to a certain extent while saving energy.
Experimental example 4 high-temperature detergency of Engine oil
The engine oils of the above examples and comparative examples were verified for detergency at high temperature by the crankcase simulation test method (QZX method).
The test conditions were:
oil temperature: 150 ℃; the plate temperature is 310 ℃; the operation period is as follows: 2 h; and (4) intermittent.
TABLE 4 high temperature detergency performance of Engine oils
The results are shown in table 4 and fig. 5, and show that the engine oil of comparative example 3, in which only the binary molybdenum MoDTC anti-friction agent was added, had a significantly negative effect on the high-temperature detergency of the engine oil when the same molybdenum content was achieved as the engine oil of example 4 (as shown in table 1), while the engine oil of example 4, in which the novel anti-friction agent of example 1 was added, was able to further improve the high-temperature detergency of the engine oil while achieving an excellent energy saving effect.
The results of the analysis of the high-temperature detergency performance of the engine oils of examples 5 and 6 by the same test method as described above show that the high-temperature detergency performance of the engine oils of examples 5 and 6 is equivalent to that of the engine oil of example 4.
Although the invention has been described in detail with respect to the general description and the specific embodiments thereof, it will be apparent to those skilled in the art that modifications and improvements can be made based on the invention. Accordingly, such modifications and improvements are intended to be within the scope of the invention as claimed.
Claims (4)
1. An antifriction agent for engine oil is characterized by comprising the following components in parts by weight: s52535-45 parts, C9455B 15-25 parts, and Perfad 305735-45 parts.
2. Use of a friction reducer as claimed in claim 1 in the preparation of an engine oil.
3. An engine oil comprising the friction reducer of claim 1.
4. The engine oil according to claim 3, wherein the friction reducer is present in an amount of 0.5 to 2% by mass.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910959252.XA CN112646632B (en) | 2019-10-10 | 2019-10-10 | Antifriction agent for engine oil and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910959252.XA CN112646632B (en) | 2019-10-10 | 2019-10-10 | Antifriction agent for engine oil and application thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112646632A CN112646632A (en) | 2021-04-13 |
| CN112646632B true CN112646632B (en) | 2022-09-16 |
Family
ID=75343270
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910959252.XA Active CN112646632B (en) | 2019-10-10 | 2019-10-10 | Antifriction agent for engine oil and application thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112646632B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105316079A (en) * | 2014-07-31 | 2016-02-10 | 中国石油化工股份有限公司 | Energy-saving light-load engine oil and application thereof |
| CN105524689A (en) * | 2014-10-21 | 2016-04-27 | 中国石油化工股份有限公司 | Low-viscosity high-efficiency energy-efficient engine oil and preparation technology thereof |
| WO2017170769A1 (en) * | 2016-03-30 | 2017-10-05 | 出光興産株式会社 | Lubricant oil composition for internal combustion engines |
| CN107683323A (en) * | 2015-07-01 | 2018-02-09 | 出光兴产株式会社 | Lubricating oil composition, method for reducing friction of internal combustion engine, and method for producing lubricating oil composition |
-
2019
- 2019-10-10 CN CN201910959252.XA patent/CN112646632B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105316079A (en) * | 2014-07-31 | 2016-02-10 | 中国石油化工股份有限公司 | Energy-saving light-load engine oil and application thereof |
| CN105524689A (en) * | 2014-10-21 | 2016-04-27 | 中国石油化工股份有限公司 | Low-viscosity high-efficiency energy-efficient engine oil and preparation technology thereof |
| CN107683323A (en) * | 2015-07-01 | 2018-02-09 | 出光兴产株式会社 | Lubricating oil composition, method for reducing friction of internal combustion engine, and method for producing lubricating oil composition |
| WO2017170769A1 (en) * | 2016-03-30 | 2017-10-05 | 出光興産株式会社 | Lubricant oil composition for internal combustion engines |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112646632A (en) | 2021-04-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US6599865B1 (en) | Effective antioxidant combination for oxidation and deposit control in crankcase lubricants | |
| JP4157421B2 (en) | Antioxidant combinations containing molybdenum and alkyl-substituted phenothiazines to control oxidation and adhesion in lubricants | |
| CN105524689B (en) | A kind of low-viscosity high-efficiency and energy-saving type engine oil and its preparation process | |
| CN103509634B (en) | Lubricating oil composition for engine employing methanol or methanol gasoline as fuel | |
| CN105829512B (en) | The fatty amine salt of lubricant is used for as friction modifiers | |
| CN106164231A (en) | Lubricating oil composition for internal combustion engine | |
| CN102311841B (en) | Carbamic acid molybdenum lubricating grease additive, its preparation method and application | |
| CN106967481A (en) | Engine nanometer sealing compound and its preparation method and application | |
| CN112646632B (en) | Antifriction agent for engine oil and application thereof | |
| CN105623795B (en) | A kind of energy-saving engine antiwear additive and preparation method thereof | |
| CN107760413A (en) | A kind of non-sulphur phosphorus oil-soluble organic molybdenum additive and its preparation method and application | |
| CN108410539B (en) | Oil-soluble nano rare earth anti-wear lubricating oil additive and preparation method thereof | |
| CN112011389A (en) | Engine lubricating oil composition | |
| CN100460490C (en) | Lubricating oil oxidation stability additive composition and preparation method thereof | |
| CN105861121A (en) | Energy-saving wear-resistant gasoline engine oil and preparation method thereof | |
| CN109135873A (en) | A kind of oil-soluble graphite ene compound and the preparation method and application thereof | |
| JP5108319B2 (en) | Friction modifier comprising organomolybdenum compound and lubricating composition containing the same | |
| CN115074174A (en) | Low-viscosity energy-saving engine oil composition and preparation method thereof | |
| CN112409394A (en) | Preparation method and application of nitrogen-sulfur-containing unsaturated fatty acid borate | |
| CN105524681B (en) | A kind of gasoline engine oil friction improver and its application | |
| CN110016380A (en) | Diesel engine oil composition | |
| CN105820861B (en) | A kind of energy-saving diesel machine oil and preparation method thereof | |
| CN106467766B (en) | A kind of method for improving biomass fuel carbon soot particles low temperature dispersity | |
| CN1332156A (en) | Dithiocarbamate derivative and its prepn and application | |
| CN110951518A (en) | Organic friction modifier and method for reducing friction coefficient of low-viscosity lubricating oil |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |