A high wear-resistant lubricating oil composition and preparation method thereof

Abstract

The present invention relates to a high-wear-resistant lubricating oil composition and a preparation method thereof, and belongs to the technical field of lubricating oils. The lubricating oil composition comprises, by weight, 100 parts of base oil, 1.7-2.3 parts of wear-resistant additives, 1.25-1.4 parts of detergents, 1.8-2.1 parts of dispersants, 0.35-0.45 parts of antioxidants, 0.14-0.18 parts of rust inhibitors, and 3.7-4.2 parts of viscosity index improvers; the wear-resistant additive is prepared by adding triallylamine to 1-thioglycerol to form an intermediate having a multi-branched hydroxyl structure, and then ethylene chlorophosphite reacts with the hydroxyl groups grafted on the intermediate molecules to form a phosphate compound, i.e., a modified matrix; and then, in a liquid phase environment, molybdenum disulfide is in situ deposited on the modified matrix molecules by chelation to form an organic-inorganic aggregate, which has good compatibility with traditional lubricating oil systems and significantly improves the wear resistance of the lubricating oil under heavy-load impact conditions.

Description

Technical Field

[0001] The present invention belongs to the technical field of lubricating oils, and in particular relates to a high-wear-resistant lubricating oil composition and a preparation method thereof. Background Art

[0002] Friction and wear are the main causes of primary energy loss and mechanical equipment failure. Reasonable use of lubrication technology can effectively reduce friction and wear. Generally, lubricating media are filled between parts with relative motion. Lubricating oil is an important component of the lubricating medium. It is generally composed of base oil and additives. Base oil is the main component of lubricating oil and determines the basic properties of lubricating oil. Additives can make up for and improve the deficiencies in the performance of base oil and give it certain new properties. They are an important component of lubricating oil.

[0003] Traditional lubricants can achieve good steady-state wear resistance through the formulation of additives. However, with the rapid development of high-end equipment manufacturing industry, the working conditions of lubricants are becoming more and more complex. For example, under harsh working conditions such as heavy load and impact, traditional oil film lubrication is insufficient, resulting in serious wear of mechanical equipment and greatly reducing the life of the equipment. Summary of the Invention

[0004] In order to solve the technical problems mentioned in the background technology, the purpose of the present invention is to provide a high wear-resistant lubricating oil composition and a preparation method thereof.

[0005] The purpose of the present invention can be achieved through the following technical solutions:

[0006] A high wear-resistant lubricating oil composition comprises the following components in parts by weight:

[0007] 100 parts of base oil, 1.7-2.3 parts of anti-wear additive, 1.25-1.4 parts of detergent, 1.8-2.1 parts of dispersant, 0.35-0.45 parts of antioxidant, 0.14-0.18 parts of rust inhibitor and 3.7-4.2 parts of viscosity index improver;

[0008] Furthermore, the base oil is a paraffin-based base oil, preferably a 400SN type product.

[0009] Furthermore, the detergent is a sulfonate detergent, preferably a T101 product.

[0010] Furthermore, the dispersant is a boronated succinimide dispersant, preferably a T154B product.

[0011] Furthermore, the antioxidant is a hindered phenol antioxidant, preferably a WX8135 product.

[0012] Furthermore, the rust inhibitor is an organic acid rust inhibitor, preferably a T746 product.

[0013] Furthermore, the viscosity index improver is an ethylene-propylene copolymer viscosity index improver, preferably a T614 product.

[0014] The preparation method of the wear-resistant additive comprises the following steps:

[0015] Step A1: Mix triallylamine, 1-thioglycerol and acetone, raise the temperature to 45-55°C, apply 60-90 rpm stirring and 120-180 W / m 2 Irradiate with ultraviolet light, add dimethyl azobisisobutyrate intermittently and react for 4-5 hours. After the reaction is completed, remove acetone by rotary evaporation to obtain an intermediate;

[0016] Furthermore, the dosage ratio of triallylamine, 1-thioglycerol, dimethyl azobisisobutyrate and acetone is 10 mmol: 32-34 mmol: 12-18 mg: 15-20 mL. Under the initiation of dimethyl azobisisobutyrate and the promotion of ultraviolet irradiation, 1-thioglycerol and triallylamine add to form a multi-branched hydroxy compound.

[0017] Step A2: The intermediate, ethylene chlorophosphite, triethylamine and dioxane were mixed, nitrogen was introduced, the temperature was raised to 80-90°C, and the mixture was stirred at 120-150 rpm for 2.5-3.5 hours. After the reaction was completed, the dioxane was removed by vacuum rotary evaporation to obtain a modified matrix;

[0018] Furthermore, the usage ratio of the intermediate, ethylene chlorophosphite, triethylamine and dioxane is 10 mmol: 35-40 mmol: 5-8 mL: 40-55 mL, and the ethylene chlorophosphite reacts with the hydroxyl group grafted on the intermediate molecule to form a phosphate compound.

[0019] Step A3: premixing the modified substrate, ammonium molybdate, and dimethylacetamide solution, then adding manganese chloride and thiourea and mixing evenly, heating to 60-70°C, stirring at 180-240 rpm for 1-1.5 hours, then pressurizing with nitrogen to 4.5-5.5 bar, heating to 190-210°C, and continuing the reaction for 6-8 hours. After the reaction is completed, the precipitate is washed with ethanol and vacuum-dried to obtain a wear-resistant additive;

[0020] Furthermore, the dosage ratio of ammonium molybdate, thiourea, manganese chloride, modified matrix and dimethylacetamide solution is 10mmol:32-36mmol:0.16-0.22g:0.6-0.75g:60-75mL, and the volume fraction of dimethylacetamide solution is 60%. In a liquid phase environment, the sulfur and nitrogen elements of the modified matrix and the phosphate organic structure form a complex, preferentially enriching ammonium molybdate on the molecules of the modified matrix. Then, under high temperature and high pressure, ammonium molybdate reacts with thiourea under the promotion of manganese chloride to form aggregated particles of molybdenum disulfide and the modified matrix.

[0021] A method for preparing a highly wear-resistant lubricating oil composition comprises the following steps: heating a base oil to 60° C., adding a wear-resistant additive, a detergent, a dispersant, an antioxidant, and a rust inhibitor, and mixing the mixture; cooling the mixture to room temperature, adding a viscosity index improver, and mixing the mixture to obtain the highly wear-resistant lubricating oil composition.

[0022] Beneficial effects of the present invention:

[0023] The present invention discloses an organic-inorganic wear-resistant additive, which has good compatibility with traditional lubricating oil systems and significantly improves the wear resistance of lubricating oil under heavy-load impact conditions. The additive is prepared by adding triallylamine to 1-thioglycerol to form an intermediate with a multi-branched hydroxyl structure, and then ethylene chlorophosphite reacts with the hydroxyl groups grafted on the intermediate molecule to form a phosphate compound, which is a modified matrix. The large number of ring structures at the ends of the modified matrix molecules make the molecules tend to be spherical structures under steric hindrance, and the sulfur and nitrogen elements in the molecules form a complex with the phosphate structure. Ammonium molybdate is enriched by complexation in a liquid phase environment. Under high temperature and high pressure conditions, the modified matrix is ​​used as a template, and molybdenum disulfide formed by the reaction of the surface-enriched ammonium molybdate with thiourea is in situ deposited on the modified matrix. On the molecules, aggregated particles of molybdenum disulfide and modified matrix are formed, which are wear-resistant additives; under conventional friction conditions, the structure of the wear-resistant additive is stable, forming ball friction. Under heavy-load impact conditions, the aggregate structure of the wear-resistant additive collapses to form buffer lubrication, and the released modified matrix adheres to the molybdenum disulfide micro-nano particles and fills the friction interface to form a composite lubricating film. The dual lubrication effect effectively reduces friction and wear under heavy-load impact; the organic structure of the wear-resistant additive contains a large amount of alkyl phosphate structure, which has good compatibility with traditional base oils, and the aggregate structure of the wear-resistant additive itself has a low specific gravity. The composite organic modified matrix further reduces the specific gravity, so that the wear-resistant additive has good dispersion stability in the composition, which is conducive to the stable wear-resistant lubrication effect. DETAILED DESCRIPTION

[0024] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] Example 1: Preparation of a high-wear-resistant lubricating oil composition. The specific implementation process is as follows:

[0026] (1) Preparation of wear-resistant additives

[0027] Step A1: Mix triallylamine, 1-thioglycerol and acetone, heat to 55°C, stir at 90 rpm and 180 W / m2 Under ultraviolet irradiation, equal amounts of dimethyl azobisisobutyrate were added three times with an interval of 15 minutes. After complete addition, the reaction was continued, and the reaction time of adding dimethyl azobisisobutyrate was controlled to be 4 hours. Among them, the dosage ratio of triallylamine, 1-thioglycerol, dimethyl azobisisobutyrate and acetone was 10 mmol: 34 mmol: 18 mg: 20 mL. After the reaction was completed, the acetone was removed by rotary evaporation to obtain an intermediate.

[0028] Step A2: The intermediate, ethylene chlorophosphite, triethylamine and dioxane were mixed, nitrogen protection was introduced, the temperature was raised to 90°C, and the reaction was stirred at 150 rpm for 2.5 hours. The amount ratio of the intermediate, ethylene chlorophosphite, triethylamine and dioxane was 10 mmol:40 mmol:8 mL:55 mL. After the reaction was completed, the dioxane was removed by vacuum rotary evaporation to obtain a modified matrix.

[0029] Step A3: Premix the modified matrix, ammonium molybdate, and dimethylacetamide solution, then add manganese chloride and thiourea and mix well. Heat to 70°C, stir at 240 rpm for 1 hour, then pressurize with nitrogen to 5.5 bar, heat to 210°C, and continue reacting for 6 hours. The amount ratio of ammonium molybdate, thiourea, manganese chloride, modified matrix, and dimethylacetamide solution is 10 mmol: 36 mmol: 0.22 g: 0.75 g: 75 mL, and the dimethylacetamide solution is a 60% volume fraction aqueous solution. After the reaction, wash the precipitate with ethanol and vacuum dry to obtain a wear-resistant additive.

[0030] (2) Preparation of high wear-resistant lubricating oil composition

[0031] Ingredients: The raw materials are taken in parts by weight, 100 parts of base oil, and paraffin-based base oil 400SN type products are used during the implementation process, which are provided by Wuxi Yongzhen Industrial Oil Products Co., Ltd.; 1.7 parts of wear-resistant additives are homemade in this embodiment; 1.35 parts of detergent, and sulfonate detergent T101 type products are used during the implementation process; 1.8 parts of dispersant, and boronated succinimide dispersant T154B type products are used during the implementation process; 0.4 parts of antioxidant, and hindered phenol antioxidant WX8135 type products are used during the implementation process; 0.18 parts of rust inhibitor, and organic acid rust inhibitor T746 type products are used during the implementation process, all of which are provided by Wuxi Southern Petroleum Additives Co., Ltd.; 3.7 parts of viscosity index improver, and ethylene-propylene copolymer viscosity index improver T614 type products are used during the implementation process, which are provided by Beijing Tianyi Yongchang Chemical Technology Co., Ltd.

[0032] Blending: Heat the base oil to 60°C, add anti-wear additives, detergent, dispersant, antioxidant and rust inhibitor and stir at 240 rpm for 25 minutes. After cooling to room temperature, add viscosity index improver and stir at 60 rpm for 1 hour to obtain a high wear-resistant lubricating oil composition.

[0033] Example 2: Preparation of a high-wear-resistant lubricating oil composition. The specific implementation process is as follows:

[0034] (1) Preparation of wear-resistant additives

[0035] Step A1: Mix triallylamine, 1-thioglycerol and acetone, heat to 50°C, stir at 60 rpm and apply 150 W / m 2 Under ultraviolet irradiation, equal amounts of dimethyl azobisisobutyrate were added three times with an interval of 20 minutes. After complete addition, the reaction was continued, and the reaction time of adding dimethyl azobisisobutyrate was controlled to be 4.5 hours. Among them, the dosage ratio of triallylamine, 1-thioglycerol, dimethyl azobisisobutyrate and acetone was 10 mmol: 33 mmol: 16 mg: 18 mL. After the reaction was completed, the acetone was removed by rotary evaporation to obtain an intermediate.

[0036] Step A2: The intermediate, ethylene chlorophosphite, triethylamine and dioxane were mixed, nitrogen protection was introduced, the temperature was raised to 80°C, and the reaction was stirred at 120 rpm for 3 hours. The amount ratio of the intermediate, ethylene chlorophosphite, triethylamine and dioxane was 10 mmol:38 mmol:7 mL:50 mL. After the reaction was completed, the dioxane was removed by vacuum rotary evaporation to obtain a modified matrix.

[0037] Step A3: Premix the modified matrix, ammonium molybdate, and dimethylacetamide solution, then add manganese chloride and thiourea and mix well. Heat to 65°C, stir at 240 rpm for 1.3 hours, then pressurize with nitrogen to 5 bar, heat to 200°C, and continue reacting for 6.5 hours. The amount ratio of ammonium molybdate, thiourea, manganese chloride, modified matrix, and dimethylacetamide solution is 10 mmol: 35 mmol: 0.18 g: 0.65 g: 70 mL, and the dimethylacetamide solution is a 60% volume fraction aqueous solution. After the reaction, wash the precipitate with ethanol and vacuum dry to obtain a wear-resistant additive.

[0038] (2) Preparation of high wear-resistant lubricating oil composition

[0039] Ingredients: The raw materials are taken in parts by weight, 100 parts of base oil, and paraffin-based base oil 400SN type products are used during the implementation process, which are provided by Wuxi Yongzhen Industrial Oil Products Co., Ltd.; 2.3 parts of wear-resistant additives are homemade in this embodiment; 1.25 parts of detergent, and sulfonate detergent T101 type products are used during the implementation process, 2.1 parts of dispersant, and boronated succinimide dispersant T154B type products are used during the implementation process, 0.35 parts of antioxidant, and hindered phenol antioxidant WX8135 type products are used during the implementation process, 0.15 parts of rust inhibitor, and organic acid rust inhibitor T746 type products are used during the implementation process, all of which are provided by Wuxi Southern Petroleum Additives Co., Ltd.; 4.2 parts of viscosity index improver, and ethylene-propylene copolymer viscosity index improver T614 type products are used during the implementation process, which are provided by Beijing Tianyi Yongchang Chemical Technology Co., Ltd.

[0040] Blending: Heat the base oil to 60°C, add anti-wear additives, detergent, dispersant, antioxidant and rust inhibitor and stir at 240 rpm for 35 minutes. After cooling to room temperature, add viscosity index improver and stir at 60 rpm for 1 hour to obtain a high wear-resistant lubricating oil composition.

[0041] Example 3: Preparation of a high-wear-resistant lubricating oil composition. The specific implementation process is as follows:

[0042] (1) Preparation of wear-resistant additives

[0043] Step A1: Mix triallylamine, 1-thioglycerol and acetone, heat to 45°C, stir at 60 rpm and 120 W / m 2 Under ultraviolet irradiation, equal amounts of dimethyl azobisisobutyrate were added three times with an interval of 30 minutes. After complete addition, the reaction was continued, and the reaction time of adding dimethyl azobisisobutyrate was controlled to be 5 hours. Among them, the amount ratio of triallylamine, 1-thioglycerol, dimethyl azobisisobutyrate and acetone was 10mmol:32mmol:12mg:15mL. After the reaction was completed, the acetone was removed by rotary evaporation to obtain an intermediate.

[0044] Step A2: The intermediate, ethylene chlorophosphite, triethylamine and dioxane were mixed, nitrogen protection was introduced, the temperature was raised to 80°C, and the reaction was stirred at 120 rpm for 3.5 hours. The amount ratio of the intermediate, ethylene chlorophosphite, triethylamine and dioxane was 10 mmol:35 mmol:5 mL:40 mL. After the reaction was completed, the dioxane was removed by vacuum rotary evaporation to obtain a modified matrix.

[0045] Step A3: Premix the modified matrix, ammonium molybdate, and dimethylacetamide solution, then add manganese chloride and thiourea and mix well. Heat to 60°C, stir at 180 rpm for 1.5 hours, then pressurize with nitrogen to 4.5 bar, heat to 190°C, and continue reacting for 8 hours. The amount ratio of ammonium molybdate, thiourea, manganese chloride, modified matrix, and dimethylacetamide solution is 10 mmol: 32 mmol: 0.16 g: 0.6 g: 60 mL, and the dimethylacetamide solution is a 60% volume fraction aqueous solution. After the reaction, wash the precipitate with ethanol and vacuum dry to obtain a wear-resistant additive.

[0046] (2) Preparation of high wear-resistant lubricating oil composition

[0047] Ingredients: The raw materials are taken in parts by weight, 100 parts of base oil, and paraffin-based base oil 400SN type products are used during the implementation process, which are provided by Wuxi Yongzhen Industrial Oil Products Co., Ltd.; 1.9 parts of wear-resistant additives are homemade in this embodiment; 1.4 parts of detergent, and sulfonate detergent T101 type products are used during the implementation process, 1.9 parts of dispersant, and boronated succinimide dispersant T154B type products are used during the implementation process, 0.42 parts of antioxidant, and hindered phenol antioxidant WX8135 type products are used during the implementation process, 0.14 parts of rust inhibitor, and organic acid rust inhibitor T746 type products are used during the implementation process, all of which are provided by Wuxi Southern Petroleum Additives Co., Ltd.; 4 parts of viscosity index improver, and ethylene-propylene copolymer viscosity index improver T614 type products are used during the implementation process, which are provided by Beijing Tianyi Yongchang Chemical Technology Co., Ltd.

[0048] Blending: Heat the base oil to 60°C, add anti-wear additives, detergent, dispersant, antioxidant and rust inhibitor and stir at 240 rpm for 30 minutes. After cooling to room temperature, add viscosity index improver and stir at 60 rpm for 1.2 hours to obtain a high-wear-resistant lubricating oil composition.

[0049] Example 4: Preparation of a high-wear-resistant lubricating oil composition. The specific implementation process is as follows:

[0050] (1) Preparation of wear-resistant additives

[0051] Step A1: Mix triallylamine, 1-thioglycerol and acetone, heat to 55°C, stir at 90 rpm and 160 W / m 2 Under ultraviolet irradiation, equal amounts of dimethyl azobisisobutyrate were added three times with an interval of 25 minutes. After complete addition, the reaction was continued, and the reaction time of adding dimethyl azobisisobutyrate was controlled to be 4.2 hours. Among them, the dosage ratio of triallylamine, 1-thioglycerol, dimethyl azobisisobutyrate and acetone was 10 mmol: 32 mmol: 17 mg: 20 mL. After the reaction was completed, the acetone was removed by rotary evaporation to obtain an intermediate.

[0052] Step A2: The intermediate, ethylene chlorophosphite, triethylamine and dioxane were mixed, nitrogen protection was introduced, the temperature was raised to 90°C, and the reaction was stirred at 150 rpm for 3.2 hours. The amount ratio of the intermediate, ethylene chlorophosphite, triethylamine and dioxane was 10 mmol:40 mmol:6 mL:50 mL. After the reaction was completed, the dioxane was removed by vacuum rotary evaporation to obtain a modified matrix.

[0053] Step A3: Premix the modified matrix, ammonium molybdate, and dimethylacetamide solution, then add manganese chloride and thiourea and mix well. Heat to 60°C, stir at 240 rpm for 1.5 hours, then pressurize with nitrogen to 5.5 bar, heat to 200°C, and continue reacting for 7.5 hours. The amount ratio of ammonium molybdate, thiourea, manganese chloride, modified matrix, and dimethylacetamide solution is 10 mmol: 34 mmol: 0.2 g: 0.7 g: 70 mL, and the dimethylacetamide solution is a 60% volume fraction aqueous solution. After the reaction, wash the precipitate with ethanol and vacuum dry to obtain a wear-resistant additive.

[0054] (2) Preparation of high wear-resistant lubricating oil composition

[0055] Ingredients: The raw materials are taken in parts by weight, 100 parts of base oil, and paraffin-based base oil 400SN type products are used during the implementation process, which are provided by Wuxi Yongzhen Industrial Oil Products Co., Ltd.; 2 parts of wear-resistant additives are homemade in this embodiment; 1.3 parts of detergent, and sulfonate detergent T101 type products are used during the implementation process, 2 parts of dispersant, and boronated succinimide dispersant T154B type products are used during the implementation process, 0.45 parts of antioxidant, and hindered phenol antioxidant WX8135 type products are used during the implementation process, 0.15 parts of rust inhibitor, and organic acid rust inhibitor T746 type products are used during the implementation process, all of which are provided by Wuxi Southern Petroleum Additives Co., Ltd.; 3.9 parts of viscosity index improver, and ethylene-propylene copolymer viscosity index improver T614 type products are used during the implementation process, which are provided by Beijing Tianyi Yongchang Chemical Technology Co., Ltd.

[0056] Blending: Heat the base oil to 60°C, add anti-wear additives, detergent, dispersant, antioxidant and rust inhibitor and stir at 240 rpm for 35 minutes. After cooling to room temperature, add viscosity index improver and stir at 60 rpm for 1.3 hours to obtain a high wear-resistant lubricating oil composition.

[0057] Comparative Example

[0058] This comparative example refers to Example 4, but without adding wear-resistant additives, 0.7 parts of anti-wear agent T309, industrial-grade raw materials, and 1.5 parts of molybdenum disulfide powder, model XF184-1, provided by Jiangsu Xianfeng Nanomaterial Technology Co., Ltd. were added, and the rest of the implementation process was exactly the same.

[0059] Samples were taken from the lubricating oil compositions prepared above and tested as follows:

[0060] Stability test: The sample was left at 50°C for 7 days. The transmittance of the sample before and after standing was measured by spectrophotometry. The transmittance change rate ΔT was calculated to characterize the stability of the lubricating oil composition.

[0061] Wear resistance test: Use a four-ball testing machine to measure the maximum no-seizure load P of the sample. B , sintering load P D , wear spot diameter WSD test, load is 294N, speed is 450r / min, test time is 60min;

[0062] Impact wear resistance test: The impact wear test was carried out using a ring-block friction and wear testing machine with a constant load of 600N, a speed of 300r / min, an impact load of 100N, an impact start and stop time of 1s, an intermission time of 10s, and a cycle of 1h. After the impact wear, the average friction coefficient μ was measured;

[0063] The specific test results are shown in Table 1:

[0064]

[0065] It can be seen from the test results in Table 1 that the lubricating oil composition of the embodiment has excellent stability and good wear-resistant lubricating effect, and exhibits excellent wear resistance especially under heavy load impact conditions.

[0066] Throughout the specification, references to terms such as "one embodiment," "example," or "specific example" indicate that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0067] The above contents are merely examples and explanations of the present invention. Those skilled in the art may make various modifications or additions to the described specific embodiments or replace them in similar ways. As long as they do not deviate from the invention or exceed the scope defined by the claims, they should all fall within the scope of protection of the present invention.

Claims

1. A high wear-resistant lubricating oil composition, characterized in that: The composition comprises the following components in parts by weight: 100 parts of base oil, 1.7-2.3 parts of anti-wear additive, 1.25-1.4 parts of detergent, 1.8-2.1 parts of dispersant, 0.35-0.45 parts of antioxidant, 0.14-0.18 parts of rust inhibitor and 3.7-4.2 parts of viscosity index improver; The preparation method of the wear-resistant additive comprises the following steps: Step A1: Mix triallylamine, 1-thioglycerol and acetone, heat to 45-55°C, and apply 120-180W / m 2 Irradiate with ultraviolet light, stir and intermittently add dimethyl azobisisobutyrate to react for 4-5 hours. After the reaction is completed, remove acetone by rotary evaporation to obtain an intermediate; Step A2: The intermediate, ethylene chlorophosphite, triethylamine and dioxane were mixed, nitrogen was introduced, the temperature was raised to 80-90°C, and the mixture was stirred for reaction for 2.5-3.5 hours. After the reaction was completed, the dioxane was removed by vacuum rotary evaporation to obtain a modified matrix; Step A3: Premix the modified substrate, ammonium molybdate, and dimethylacetamide solution, then add manganese chloride and thiourea and mix thoroughly. Heat to 60-70°C and stir for 1-1.5 hours. Then, pressurize with nitrogen to 4.5-5.5 bar, heat to 190-210°C, and continue the reaction for 6-8 hours. After the reaction is completed, take the precipitate, wash it with ethanol, and vacuum dry it to obtain a wear-resistant additive.

2. A highly wear-resistant lubricating oil composition according to claim 1, characterized in that: The usage ratio of triallylamine, 1-thioglycerol, dimethyl azobisisobutyrate and acetone is 10 mmol: 32-34 mmol: 12-18 mg: 15-20 mL.

3. A high wear-resistant lubricating oil composition according to claim 2, characterized in that: The usage ratio of the intermediate, ethylene chlorophosphite, triethylamine and dioxane is 10 mmol: 35-40 mmol: 5-8 mL: 40-55 mL.

4. A highly wear-resistant lubricating oil composition according to claim 3, characterized in that: The usage ratio of ammonium molybdate, thiourea, manganese chloride, modified matrix and dimethylacetamide solution is 10 mmol: 32-36 mmol: 0.16-0.22 g: 0.6-0.75 g: 60-75 mL, and the volume fraction of the dimethylacetamide solution is 60%.

5. The high wear-resistant lubricating oil composition according to claim 1, characterized in that: The base oil is paraffin-based.

6. A highly wear-resistant lubricating oil composition according to claim 1, characterized in that: The dispersant is a boronated succinimide dispersant.

7. The high wear-resistant lubricating oil composition according to claim 1, characterized in that: The viscosity index improver is an ethylene-propylene copolymer viscosity index improver.

8. The method for preparing a high-wear-resistant lubricating oil composition according to any one of claims 1 to 7, characterized in that: The specific method is: heating the base oil to 60°C, adding wear-resistant additives, detergents, dispersants, antioxidants and rust inhibitors, mixing, cooling to room temperature, adding viscosity index improver and mixing evenly to obtain a high wear-resistant lubricating oil composition.

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