CN113563952A - Wear-resistant lubricating oil composition and preparation method thereof - Google Patents
Wear-resistant lubricating oil composition and preparation method thereof Download PDFInfo
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- 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
- C10M169/04—Mixtures of base-materials and additives
- C10M169/045—Mixtures of base-materials and additives the additives being a mixture of compounds of unknown or incompletely defined constitution and non-macromolecular compounds
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- 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
- C10M2201/06—Metal compounds
- C10M2201/062—Oxides; Hydroxides; Carbonates or bicarbonates
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- 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
- C10M2201/10—Compounds containing silicon
- C10M2201/102—Silicates
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- 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
- C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
- C10M2207/02—Hydroxy compounds
- C10M2207/023—Hydroxy compounds having hydroxy groups bound to carbon atoms of six-membered aromatic rings
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- 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
- C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
- C10M2207/10—Carboxylix acids; Neutral salts thereof
- C10M2207/14—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to carbon atoms of six-membered aromatic rings
- C10M2207/146—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to carbon atoms of six-membered aromatic rings having carboxyl groups bound to carbon atoms of six-membeered aromatic rings having a hydrocarbon substituent of thirty or more carbon atoms
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- 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
- C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
- C10M2207/28—Esters
- C10M2207/281—Esters of (cyclo)aliphatic monocarboxylic acids
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- 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
- C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
- C10M2207/28—Esters
- C10M2207/282—Esters of (cyclo)aliphatic oolycarboxylic acids
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- 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
- C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
- C10M2207/40—Fatty vegetable or animal oils
- C10M2207/401—Fatty vegetable or animal oils used as base material
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- 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
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- 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
- C10M2215/08—Amides
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- 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
- C10M2215/086—Imides
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- 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
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- 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
- C10M2219/04—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions containing sulfur-to-oxygen bonds, i.e. sulfones, sulfoxides
- C10M2219/044—Sulfonic acids, Derivatives thereof, e.g. neutral salts
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- 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
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- 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
- C10M2219/106—Thiadiazoles
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
- C10N2030/06—Oiliness; Film-strength; Anti-wear; Resistance to extreme pressure
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
- C10N2030/12—Inhibition of corrosion, e.g. anti-rust agents or anti-corrosives
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- Organic Chemistry (AREA)
- Lubricants (AREA)
Abstract
The invention relates to the technical field of lubricating oil, in particular to a wear-resistant lubricating oil composition and a preparation method thereof. The feed comprises the following raw materials: antioxidant, nano wear-resistant additive, dispersant, metal deactivator and neutralizer, and the balance of base oil; according to the wear-resistant lubricating oil composition and the preparation method thereof, the nano-hydroxyl magnesium silicate powder is added, so that the lubricating oil forms a self-repairing protective film on the metal surface, the worn surface is smooth, the direct contact of the metal surface is prevented, the wear of a metal friction pair is effectively reduced, the added sodium hydroxide can improve the corrosivity of the composition, and can react with magnesium chloride prepared by the reaction of a dispersing agent and the nano-hydroxyl magnesium silicate powder to prepare magnesium hydroxide, the heat resistance of the composition is improved, and the corrosion prevention and desulfurization effects are achieved.
Description
Technical Field
The invention relates to the technical field of lubricating oil, in particular to a wear-resistant lubricating oil composition and a preparation method thereof.
Background
The lubricating oil is a liquid lubricant which is used on various automobile transmissions, mechanical equipment and precision instruments to reduce friction and protect machines and workpieces, is mainly used for reducing friction between surfaces of moving parts, and has the functions of cooling, sealing, corrosion prevention, rust prevention, insulation, power transmission, impurity cleaning and the like on the mechanical equipment. The lubricating oil generally consists of two parts, namely base oil and an additive, wherein the base oil is the main component of the lubricating oil, the basic property of the lubricating oil is determined, the additive can make up and improve the deficiency of the performance of the base oil, and endows certain new performances, such as oxidation resistance, wear resistance, pour point depression and the like, which are important components of the lubricating oil;
lubricating oil compositions prepared by the prior art have certain anti-wear property, but can cause grinding marks on the surface of metal after long-term use, and do not have a repairing function, so that a novel lubricating oil composition is needed to overcome the defects in the prior art.
Disclosure of Invention
The present invention is directed to a wear-resistant lubricating oil composition and a method for preparing the same, which solve the problems set forth in the background art.
In order to achieve the above object, in one aspect, the present invention provides a wear-resistant lubricating oil composition, comprising 0.5 to 3% of an antioxidant, 1 to 5% of a nano wear-resistant additive, 0.1 to 0.5% of a dispersant, 0.01 to 0.05% of a metal deactivator, 0.1 to 1% of a neutralizer, and the balance base oil.
As a further improvement of the technical scheme, the antioxidant is one or a mixture of more of 3, 5-diethyltoluenediamine, N-diphenyl-p-phenylenediamine, 2-mercaptobenzothiazole and 2, 5-dimercapto-1, 3, 4-thiadiazole.
As a further improvement of the technical scheme, the nano wear-resistant additive is selected from nano hydroxyl magnesium silicate powder, the granularity of the nano hydroxyl magnesium silicate powder is 1-5um, and the added nano hydroxyl magnesium silicate powder enables lubricating oil to form a self-repairing protective film on the metal surface, so that the worn surface is relatively flat and smooth, the direct contact of the metal surface is hindered, and the wear of a metal friction pair is effectively reduced.
As a further improvement of the technical scheme, the dispersant is selected from one or more of stearamide, glyceryl stearate, sulfonate, alkyl phenate, salicylate, succinimide and succinate.
As a further improvement of the technical scheme, the metal deactivator is selected from one or more of benzotriazole derivatives, thiadiazole derivatives, sulfur-containing nitrogen heterocyclic compounds and organic amine compounds.
As a further improvement of the technical scheme, the base oil is one or more of glycerol, corn oil, castor oil, grape seed oil and peanut oil.
As a further improvement of the technical scheme, the neutralizing agent is selected from sodium hydroxide, and the sodium hydroxide has stronger alkalinity and can be neutralized with acid in the composition, so that the corrosivity of the composition is reduced.
In another aspect, the present invention provides a method of making a wear-resistant lubricating oil composition, comprising the steps of:
s1, adding the base oil into a stirring kettle, and heating and stirring;
s2, sequentially adding an antioxidant, a nano wear-resistant additive, a dispersant and a metal deactivator, heating and uniformly stirring, then adding a neutralizer, and uniformly mixing to obtain the lubricating oil composition.
Preferably, in the S1, the stirring temperature is 50-60 ℃, the stirring speed is 15-20r/min, and the stirring is carried out for 1-2 h.
Preferably, in the S2, the stirring temperature is increased to 80-90 ℃, and the stirring speed is 50-60 r/min.
In the invention, the added sodium hydroxide can improve the corrosivity of the composition, and when the magnesium element in the nano-hydroxyl magnesium silicate powder reacts with the chlorine element and the hydrogen element contained in the dispersing agent, the magnesium chloride is prepared; the magnesium chloride reacts with the sodium hydroxide to prepare the magnesium hydroxide, thereby further improving the heat resistance of the composition.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the wear-resistant lubricating oil composition and the preparation method thereof, the nano-hydroxyl magnesium silicate powder is added, so that the lubricating oil forms a self-repairing protective film on the metal surface, the worn surface is smooth, the direct contact of the metal surface is hindered, and the wear of a metal friction pair is effectively reduced.
2. In the wear-resistant lubricating oil composition and the preparation method thereof, the added sodium hydroxide can improve the corrosivity of the composition, and can react with magnesium chloride prepared by reacting a dispersing agent and nano-hydroxyl magnesium silicate powder to prepare magnesium hydroxide, so that the heat resistance of the composition is improved, and the corrosion prevention and desulfurization effects are achieved.
Drawings
FIG. 1 is an overall flow diagram of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious 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.
Example 1a wear resistant lubricating oil composition and method of making the same, comprising:
1. adding the base oil into a stirring kettle, heating to 50-60 ℃, and stirring for 1-2h under the condition that the stirring speed is 15-20 r/min.
2. Sequentially adding 0% of antioxidant, 1% of nano wear-resistant additive, 0.1% of dispersant and 0.01% of metal deactivator, heating and uniformly stirring, then adding 0.1% of neutralizer and uniformly mixing to obtain the lubricating oil composition, wherein the stirring temperature is increased to 80-90 ℃, and the stirring speed is 50-60 r/min.
Example 2 a wear resistant lubricating oil composition and method of making the same, comprising:
1. adding the base oil into a stirring kettle, heating to 50-60 ℃, and stirring for 1-2h under the condition that the stirring speed is 15-20 r/min.
2. Sequentially adding 1% of antioxidant, 2% of nano wear-resistant additive, 0.2% of dispersant and 0.02% of metal deactivator, heating and uniformly stirring, then adding 0.3% of neutralizer and uniformly mixing to obtain the lubricating oil composition, wherein the stirring temperature is raised to 80-90 ℃, and the stirring speed is 50-60 r/min.
Example 3 a wear resistant lubricating oil composition and method of making the same, comprising:
1. adding the base oil into a stirring kettle, heating to 50-60 ℃, and stirring for 1-2h under the condition that the stirring speed is 15-20 r/min.
2. Sequentially adding 1.5% of antioxidant, 3% of nano wear-resistant additive, 0.3% of dispersant and 0.03% of metal deactivator, heating and uniformly stirring, then adding 0.5% of neutralizer and uniformly mixing to obtain the lubricating oil composition, wherein the stirring temperature is raised to 80-90 ℃, and the stirring speed is 50-60 r/min.
Example 4 a wear resistant lubricating oil composition and method of making the same, comprising:
1. adding the base oil into a stirring kettle, heating to 50-60 ℃, and stirring for 1-2h under the condition that the stirring speed is 15-20 r/min.
2. Sequentially adding 2.5% of antioxidant, 4% of nano wear-resistant additive, 0.4% of dispersant and 0.04% of metal deactivator, heating and uniformly stirring, then adding 0.8% of neutralizer and uniformly mixing to obtain the lubricating oil composition, wherein the stirring temperature is raised to 80-90 ℃, and the stirring speed is 50-60 r/min.
Example 5 a wear resistant lubricating oil composition and method of making the same, comprising:
1. adding the base oil into a stirring kettle, heating to 50-60 ℃, and stirring for 1-2h under the condition that the stirring speed is 15-20 r/min.
2. Adding 3% of antioxidant, 5% of nano wear-resistant additive, 0.5% of dispersant and 0.05% of metal deactivator in sequence, heating and stirring uniformly, then adding 1% of neutralizer and mixing uniformly to prepare the lubricating oil composition, wherein the stirring temperature is raised to 80-90 ℃, and the stirring speed is 50-60 r/min.
In the above examples 1 to 5, the antioxidant is one or more selected from the group consisting of 3, 5-diethyltoluenediamine, N-diphenyl-p-phenylenediamine, 2-mercaptobenzothiazole, and 2, 5-dimercapto-1, 3, 4-thiadiazole;
the nano wear-resistant additive is selected from nano hydroxyl magnesium silicate powder, the granularity of the nano hydroxyl magnesium silicate powder is 1-5 mu m, and the added nano hydroxyl magnesium silicate powder enables lubricating oil to form a self-repairing protective film on the metal surface, so that the worn surface is relatively flat and smooth, the direct contact of the metal surface is hindered, and the wear of a metal friction pair is effectively reduced;
the dispersant is one or more selected from stearamide, glyceryl stearate, sulfonate, alkyl phenolate, salicylate, succinimide and succinate;
the metal deactivator is one or more selected from benzotriazole derivatives, thiadiazole derivatives, sulfur-containing nitrogen heterocyclic compounds and organic amine compounds;
the base oil is selected from one or more of glycerol, corn oil, castor oil, grape seed oil and peanut oil;
the neutralizing agent is selected from sodium hydroxide, and the sodium hydroxide has stronger alkalinity and can be neutralized with acid in the composition, so that the corrosivity of the composition is reduced;
the sodium hydroxide added in the invention can improve the corrosivity of the composition, and when the magnesium element in the nano hydroxyl magnesium silicate powder reacts with the chlorine element and the hydrogen element contained in the dispersing agent, the magnesium chloride is prepared; the magnesium chloride reacts with the sodium hydroxide to prepare the magnesium hydroxide, so that the heat resistance of the composition is further improved, and the effects of corrosion prevention and desulfurization are achieved.
The relevant indexes of the wear-resistant lubricating oil composition prepared by the invention are shown in the table 1:
TABLE 1
As shown in Table 1, the lubricating oil compositions prepared in examples 1 to 5 of the present invention all had PB values of 90kg or more, wear scar diameters of 0.4mm or less, and low friction coefficients under 500N load, indicating that they have good wear resistance, and at the same time, the lubricating oil compositions have high flash points and corrosion levels in corrosion tests all meet the 1a standard, so it can be seen that the lubricating oil compositions prepared in the present invention have good wear resistance and heat resistance.
Comparative example 1a lubricating oil composition and a method of making the same comprising:
1. adding the base oil into a stirring kettle, heating to 50-60 ℃, and stirring for 1-2h under the condition that the stirring speed is 15-20 r/min.
2. Sequentially adding 1.5% of antioxidant, 0.3% of dispersant and 0.03% of metal deactivator, heating and uniformly stirring, then adding 0.5% of neutralizer and uniformly mixing to obtain the lubricating oil composition, wherein the stirring temperature is increased to 80-90 ℃, and the stirring speed is 50-60 r/min.
Comparative example 2 a lubricating oil composition and a method of making the same comprising:
1. adding the base oil into a stirring kettle, heating to 50-60 ℃, and stirring for 1-2h under the condition that the stirring speed is 15-20 r/min.
2. Adding 1.5% of antioxidant, 3% of nano wear-resistant additive, 0.3% of dispersant and 0.03% of metal deactivator in sequence, heating and uniformly stirring to obtain the lubricating oil composition, wherein the stirring temperature is raised to 80-90 ℃, and the stirring speed is 50-60 r/min.
Comparative example 3 a lubricating oil composition and a method of making the same comprising:
1. adding the base oil into a stirring kettle, heating to 50-60 ℃, and stirring for 1-2h under the condition that the stirring speed is 15-20 r/min.
2. Adding 1.5% of antioxidant, 0.3% of dispersant and 0.03% of metal deactivator in sequence, heating and uniformly stirring to obtain the lubricating oil composition, wherein the stirring temperature is raised to 80-90 ℃, and the stirring speed is 50-60 r/min.
The lubricating oil composition prepared by the invention has better wear resistance and heat resistance, has a great relationship with the added nano wear-resistant additive and the neutralizing agent, and in order to verify the related technical scheme, the applicant performs the following tests:
comparative examples 1 to 3: using the method of example 3, the prepared lubricating oil compositions were tested for relevant specifications with the nano antiwear additives and neutralizing agents removed, as detailed in Table 2:
TABLE 2
As shown in Table 2, compared with comparative examples 1-3, the lubricating oil composition prepared by the invention has the advantages of obviously lower friction coefficient and friction coefficient under the load of 500N, stronger PB value, higher flash point temperature and corrosion grade, and reduced comprehensive performance especially when the nano anti-wear additive and the neutralizer are removed simultaneously, so that the lubricating oil composition prepared by the material disclosed by the invention has better wear resistance and heat resistance.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the preferred embodiments of the present invention are described in the above embodiments and the description, and are not intended to limit the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. The wear-resistant lubricating oil composition is characterized by comprising the following raw materials: 0.5 to 3 percent of antioxidant, 1 to 5 percent of nano wear-resistant additive, 0.1 to 0.5 percent of dispersant, 0.01 to 0.05 percent of metal deactivator, 0.1 to 1 percent of neutralizer and the balance of base oil.
2. The wear-resistant lubricating oil composition of claim 1, characterized in that: the antioxidant is selected from one or more of 3, 5-diethyltoluenediamine, N-diphenyl-p-phenylenediamine, 2-mercaptobenzothiazole and 2, 5-dimercapto-1, 3, 4-thiadiazole.
3. The wear-resistant lubricating oil composition of claim 1, characterized in that: the nano wear-resistant additive is selected from nano hydroxyl magnesium silicate powder, and the granularity of the nano wear-resistant additive is 1-5 um.
4. The wear-resistant lubricating oil composition of claim 1, characterized in that: the dispersant is one or more selected from stearamide, glyceryl stearate, sulfonate, alkyl phenate, salicylate, succinimide and succinate.
5. The wear-resistant lubricating oil composition of claim 1, characterized in that: the metal deactivator is one or more selected from benzotriazole derivatives, thiadiazole derivatives, sulfur-containing nitrogen heterocyclic compounds and organic amine compounds.
6. The wear-resistant lubricating oil composition of claim 1, characterized in that: the base oil is one or more of glycerol, corn oil, castor oil, grape seed oil and peanut oil.
7. The wear-resistant lubricating oil composition of claim 1, characterized in that: the neutralizing agent is selected from sodium hydroxide.
8. A method of making a wear-resistant lubricating oil composition, comprising the wear-resistant lubricating oil composition of any one of claims 1-7, by the steps of:
s1, adding the base oil into a stirring kettle, and heating and stirring;
s2, sequentially adding an antioxidant, a nano wear-resistant additive, a dispersant and a metal deactivator, heating and uniformly stirring, then adding a neutralizer, and uniformly mixing to obtain the lubricating oil composition.
9. The method of making a wear-resistant lubricating oil composition of claim 8, characterized in that: in the S1, the stirring temperature is 50-60 ℃, the stirring speed is 15-20r/min, and the stirring is carried out for 1-2 h.
10. The method of making a wear-resistant lubricating oil composition of claim 8, characterized in that: in the S2, the stirring temperature is raised to 80-90 ℃, and the stirring speed is 50-60 r/min.
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| CN (1) | CN113563952A (en) |
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| CN112877119A (en) * | 2021-01-26 | 2021-06-01 | 江苏海纳石油制品有限公司 | Extreme pressure-resistant wear-resistant long-acting lubricating oil composition and preparation method thereof |
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| CN103113969A (en) * | 2013-02-21 | 2013-05-22 | 尹继辉 | Modified composite titanium-based grease of micron-nano particles and preparation method thereof |
| CN103740441A (en) * | 2013-12-18 | 2014-04-23 | 张家港市林达外加剂厂 | Self-repairing nanometer additive and preparation method thereof |
| CN105132098A (en) * | 2015-08-09 | 2015-12-09 | 义乌市渼淋汽车用品有限公司 | Internal combustion engine lubricating oil additive composition, preparation method and application thereof |
| CN107603717A (en) * | 2017-08-29 | 2018-01-19 | 杭州新港石油化工有限公司 | A kind of urea-based lubricating grease composition for possessing energy saving wear-resistant self-repair function and preparation method thereof |
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