CN114672361B - Oil composition for multifunctional transmission system, oil for multifunctional transmission system, and preparation method and application thereof - Google Patents
Oil composition for multifunctional transmission system, oil for multifunctional transmission system, and preparation method and application thereof Download PDFInfo
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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
- 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
- C10M169/048—Mixtures of base-materials and additives the additives being a mixture of compounds of unknown or incompletely defined constitution, non-macromolecular and macromolecular compounds
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- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2203/00—Organic non-macromolecular hydrocarbon compounds and hydrocarbon fractions as ingredients in lubricant compositions
- C10M2203/10—Petroleum or coal fractions, e.g. tars, solvents, bitumen
- C10M2203/1006—Petroleum or coal fractions, e.g. tars, solvents, bitumen used as base material
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- C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
- C10M2207/28—Esters
- C10M2207/283—Esters of polyhydroxy compounds
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- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2209/00—Organic macromolecular compounds containing oxygen as ingredients in lubricant compositions
- C10M2209/02—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- C10M2209/08—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds containing monomers having an unsaturated radical bound to a carboxyl radical, e.g. acrylate type
- C10M2209/084—Acrylate; Methacrylate
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- C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
- C10M2215/086—Imides
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- 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
- C10M2219/02—Sulfur-containing compounds obtained by sulfurisation with sulfur or sulfur-containing compounds
- C10M2219/022—Sulfur-containing compounds obtained by sulfurisation with sulfur or sulfur-containing compounds of hydrocarbons, e.g. olefines
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- 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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- C10M2223/00—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions
- C10M2223/02—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions having no phosphorus-to-carbon bonds
- C10M2223/04—Phosphate esters
- C10M2223/045—Metal containing thio derivatives
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- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2223/00—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions
- C10M2223/02—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions having no phosphorus-to-carbon bonds
- C10M2223/049—Phosphite
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- 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
- C10N2030/02—Pour-point; Viscosity index
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- 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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- C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
- C10N2030/10—Inhibition of oxidation, e.g. anti-oxidants
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- 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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- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
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- C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
- C10N2030/18—Anti-foaming property
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- 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
- C10N2030/26—Waterproofing or water resistance
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- 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
- C10N2030/76—Reduction of noise, shudder, or vibrations
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- C10N2040/00—Specified use or application for which the lubricating composition is intended
- C10N2040/04—Oil-bath; Gear-boxes; Automatic transmissions; Traction drives
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- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
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- C10N2040/00—Specified use or application for which the lubricating composition is intended
- C10N2040/08—Hydraulic fluids, e.g. brake-fluids
Abstract
The disclosure relates to a multifunctional transmission system oil composition, a multifunctional transmission system oil, a preparation method and an application thereof, wherein the composition comprises base oil, a viscosity index improver, an extreme pressure antiwear agent, an anti-emulsifier and other additives; based on the total weight of the composition, the content of the base oil is 80-95 wt%, the content of the viscosity index improver is 3.0-8.0 wt%, the content of the extreme pressure antiwear agent is 0.1-4.0 wt%, the content of the anti-emulsifier is 0.001-0.1 wt%, and the content of the other additives is 0.1-8.5 wt%. The multifunctional oil composition for the transmission system has excellent viscosity-temperature performance, low-temperature fluidity, oxidation resistance, rust resistance and emulsification resistance, has good compatibility with water, can effectively avoid wet brake vibration and abnormal sound under the condition of mixing part of water, and improves the running stability of equipment.
Description
Technical Field
The disclosure relates to the technical field of lubricating oil, in particular to an oil composition for a multifunctional transmission system, oil for the multifunctional transmission system, a preparation method and application of the oil composition.
Background
Agriculture is the foundation of national economy, and agricultural mechanization is an important mark of agricultural modernization. In recent years, the level of agricultural mechanization in China is continuously improved, the level of comprehensive mechanization for cultivating and harvesting the Xinjiang and Heilongjiang in 2020 has reached 70%, and the level of comprehensive mechanization for cultivating and harvesting the Xinjiang and the Heilongjiang has reached more than 98%.
At present, the same oil tank is commonly used for a gearbox, a hydraulic system and a wet braking system of agricultural machinery. Therefore, the oil product is required to have not only gear oil performance and hydraulic oil performance, but also certain friction/braking performance, because the agricultural machinery has severe jolt in the working process, impurities in the oil product are not easy to settle, and the oxidation of the lubricating oil product is promoted. Moreover, agricultural machines vary depending on the type of cultivation and the condition of the land, and the load thereof varies greatly, often accompanied by shock loads. Meanwhile, when the multifunctional transmission system oil is used for agricultural machinery in paddy fields or wet weather, the phenomena of brake noise and large vibration are easy to occur.
Disclosure of Invention
The multifunctional transmission system oil has excellent viscosity-temperature performance, low-temperature fluidity, oxidation resistance, extreme-pressure wear resistance, corrosion resistance, rust resistance and emulsification resistance, can keep good friction performance in the presence of water, effectively avoids wet brake vibration and abnormal sound, and improves the running stability of equipment.
In order to achieve the above object, a first aspect of the present disclosure provides a multifunctional driveline oil composition comprising a base oil, a viscosity index improver, an extreme pressure antiwear agent, an anti-emulsifier, and other additives; based on the total weight of the composition, the content of the base oil is 80-95 wt%, the content of the viscosity index improver is 3.0-8.0 wt%, the content of the extreme pressure antiwear agent is 0.1-4.0 wt%, the content of the anti-emulsifier is 0.001-0.1 wt%, and the content of the other additives is 0.1-8.5 wt%.
Optionally, the base oil comprises a hydrogenated mineral base oil, the hydrogenated mineral base oil being a 150N base oil and/or a 500N base oil, the hydrogenated mineral base oil having a viscosity index of greater than 90 and the hydrogenated mineral base oil having a saturates content of greater than 98 wt%;
preferably, the hydrogenated mineral base oil comprises 150N base oil and 500N base oil, the weight ratio of the 150N base oil to the 500N base oil being (1-3): 1.
optionally, the viscosity index improver is a polymethacrylate viscosity index improver, and the number average molecular weight of the polymethacrylate viscosity index improver is 10000-500000;
the extreme pressure antiwear agent is selected from one or more of phosphite ester, phosphate ester and ammonium salt derivatives thereof, sulfurized olefin, thiophosphate ester and ammonium salt derivatives thereof; preferably, the extreme pressure antiwear agent comprises sulfurized isobutylene T321 and dibutyl phosphite T304, and the weight ratio of the sulfurized isobutylene T321 to the dibutyl phosphite T304 is (1-10): 1;
the demulsifier is a polyether demulsifier and/or a polyoxypropylene demulsifier, the polyether demulsifier is selected from one or more of LZ5957, DL32 and T1002, and the polyoxypropylene demulsifier is selected from PE6100 and/or 17R4; preferably, the demulsifier is LZ5957.
Optionally, the weight ratio of the viscosity index improver to the demulsifier is (800-1200): 1, preferably (800-1150): 1; the weight ratio of the extreme pressure antiwear agent to the anti-emulsifier is (400-600): 1, preferably (400-550): 1.
optionally, the other additives comprise one or more of an antioxidant, a friction modifier, a detergent dispersant, a rust inhibitor and an anti-foaming agent;
preferably, the other additives include antioxidants, friction modifiers, detergent dispersants, rust inhibitors, and anti-foaming agents;
the antioxidant is selected from one or more of bisphenol type antioxidant, dialkyl dithiophosphate, zinc dialkyl thiocarbamate, N-phenyl-alpha-naphthylamine and dialkyl diphenylamine; the content of the antioxidant is 0.1-1.0 wt% based on the total weight of the composition;
the friction modifier is selected from one or more of benzene triazole octadecylamine salt, fatty acid, fatty alcohol, ethylene glycol oleate, butyl oleate and dimerized linoleic acid, and the content of the friction modifier is 0.1-5.0 wt% based on the total weight of the composition;
the detergent dispersant is selected from one or more of succinimide, succinate, sulfonate, ashless phosphate and expanded fatty acid ester, and the content of the detergent dispersant is 0.05-1.0 wt% based on the total weight of the composition;
the antirust agent is selected from one or more of sulfonate, carboxylate, phosphate and organic amine; the content of the antirust agent is 0.1-1.0 wt% based on the total weight of the composition;
the anti-foaming agent is one or more of dimethyl silicone oil type anti-foaming agent, non-silicon type anti-foaming agent and composite anti-foaming agent; the anti-foaming agent is present in an amount of 0.001 to 0.1% by weight, based on the total weight of the composition.
Optionally, the weight ratio of the antifoaming agent to the demulsifier is (3-6): 1.
optionally, the composition comprises the following components in parts by mass:
a second aspect of the present disclosure provides a method for producing a multifunctional power train oil using the multifunctional power train oil composition according to the first aspect of the present disclosure, the method comprising: mixing and stirring the composition; preferably, the mixing is carried out at 50-60 ℃ and the stirring time is 2-4 hours.
A third aspect of the present disclosure provides a multifunctional driveline oil prepared using the method of the second aspect of the present disclosure.
A fourth aspect of the present disclosure provides use of the multi-function power train oil of the third aspect of the present disclosure in agricultural machinery.
By the technical scheme, the multifunctional transmission system oil composition can obtain the multifunctional transmission system oil with good viscosity-temperature performance, low-temperature fluidity, oxidation resistance, extreme pressure abrasion resistance, corrosion resistance, rust resistance and emulsification resistance, has good compatibility with water, can keep good friction performance under the condition of mixing partial water, effectively avoids wet brake vibration and abnormal sound, and improves the running stability of equipment.
Additional features and advantages of the present disclosure will be set forth in the detailed description which follows.
Detailed Description
The following describes in detail specific embodiments of the present disclosure. It should be understood that the detailed description and specific examples, while indicating the present disclosure, are given by way of illustration and explanation only, not limitation.
The present disclosure provides in a first aspect an oil composition for a multifunctional driveline, the composition comprising a base oil, a viscosity index improver, an extreme pressure antiwear agent, an demulsifier, and other additives; based on the total weight of the composition, the content of the base oil is 80-95 wt%, the content of the viscosity index improver is 3.0-8.0 wt%, the content of the extreme pressure antiwear agent is 0.1-4.0 wt%, the content of the anti-emulsifier is 0.001-0.1 wt%, and the content of the other additives is 0.1-8.5 wt%.
The multifunctional transmission system oil composition disclosed by the invention has the advantages that the components are carefully selected, so that the multifunctional transmission system oil with good viscosity-temperature performance, low-temperature fluidity, oxidation resistance, extreme-pressure wear resistance, corrosion resistance, rust resistance and emulsification resistance is synthesized, the multifunctional transmission system oil has good compatibility with water, good friction performance can be kept under the condition of mixing with part of water, wet brake vibration and abnormal sound are effectively avoided, and the operation stability of equipment is improved.
In one embodiment of the present disclosure, the base oil comprises a hydrogenated mineral base oil, the hydrogenated mineral base oil being a 150N base oil and/or a 500N base oil, the hydrogenated mineral base oil having a viscosity index of greater than 90 and the hydrogenated mineral base oil having a saturated hydrocarbon content of greater than 98 wt%;
preferably, the hydrogenated mineral base oil comprises 150N base oil and 500N base oil, the weight ratio of the 150N base oil to the 500N base oil being (1-3): 1. in the above embodiment, by selecting the preferred ratio of 150N base oil to 500N base oil, the viscosity-temperature performance and oxidation resistance of the oil can be improved.
In one embodiment of the present disclosure, the viscosity index improver is a polymethacrylate-type viscosity index improver having a number average molecular weight of 10000 to 500000;
the extreme pressure antiwear agent is selected from one or more of phosphite ester, phosphate ester and ammonium salt derivatives thereof, sulfurized olefin, thiophosphate ester and ammonium salt derivatives thereof; preferably, the extreme pressure antiwear agent comprises sulfurized isobutylene T321 and dibutyl phosphite T304, and the weight ratio of the sulfurized isobutylene T321 to the dibutyl phosphite T304 is (1-10): 1;
the demulsifier is a polyether demulsifier and/or a polyoxypropane demulsifier, the polyether demulsifier is selected from one or more of LZ5957, DL32 and T1002, and the polyoxypropane demulsifier is selected from PE6100 and/or 17R4; preferably, the demulsifier is LZ5957.
In one embodiment of the present disclosure, the weight ratio of the viscosity index improver to the demulsifier is (800-1200): 1, preferably (800-1150): 1; the weight ratio of the extreme pressure antiwear agent to the demulsifier is (400-600): 1, preferably (400-550): 1.
in the embodiment, the low-temperature fluidity of the oil product is improved by further selecting the polymethacrylate substance as the viscosity index improver; the mixture of sulfurized isobutylene and dibutyl phosphite is selected as the extreme pressure antiwear agent, so that the extreme pressure bearing performance of the oil product can be obviously improved, and the odor of the oil product is low; the polyether-type anti-emulsifier is selected to enable water to be dispersed in lubricating oil in the form of emulsion droplets, and meanwhile, the emulsion droplets are gathered and settled, so that the relative surface area of the water is reduced, and the influence of the water on a friction surface is reduced.
In one embodiment of the present disclosure, the other additives include one or more of an antioxidant, a friction modifier, a detergent dispersant, a rust inhibitor, and an anti-foaming agent;
in a preferred embodiment, the other additives include antioxidants, friction modifiers, detergent dispersants, rust inhibitors, and anti-foaming agents;
the antioxidant is selected from one or more of bisphenol type antioxidant, dialkyl dithiophosphate, zinc dialkyl thiocarbamate, N-phenyl-alpha-naphthylamine and dialkyl diphenylamine; the content of the antioxidant is 0.1 to 1.0 weight percent based on the total weight of the composition;
the friction modifier is selected from one or more of benzene triazole octadecylamine salt, fatty acid, fatty alcohol, ethylene glycol oleate, butyl oleate and dimerized linoleic acid, and the content of the friction modifier is 0.1-5.0 wt% based on the total weight of the composition;
the detergent dispersant is selected from one or more of succinimide, succinate, sulfonate, ashless phosphate ester and expanded fatty acid ester, and the content of the detergent dispersant is 0.05-1.0 wt% based on the total weight of the composition;
the antirust agent is selected from one or more of sulfonate, carboxylate, phosphate and organic amine; the content of the antirust agent is 0.1-1.0 wt% based on the total weight of the composition;
the anti-foaming agent is one or more of dimethyl silicone oil type anti-foaming agent, non-silicon type anti-foaming agent and composite anti-foaming agent; the anti-foaming agent is present in an amount of 0.001 to 0.1% by weight, based on the total weight of the composition.
In one embodiment of the present disclosure, the weight ratio of the anti-foaming agent to the anti-emulsifier is (3-6): 1.
in the embodiment, other additives are selected, so that the oxidation resistance, the abrasion resistance, the dispersibility and the rust resistance of the oil product can be improved; by selecting the antifoaming agent and the anti-emulsifying agent in the optimal proportion, the antifoaming property and the anti-emulsifying property of the oil product are effectively improved, so that the oil product can keep good friction performance under the condition of mixing 0.3% of water, wet brake vibration and abnormal sound are effectively avoided, and the compatibility of the oil product and the water is improved.
In one embodiment of the present disclosure, the composition comprises the following components in parts by mass:
in the above embodiment, by using the composition in a preferred ratio, the low-temperature fluidity, the load-bearing property, the oxidation resistance, and the anti-emulsification property of the oil can be improved in an integrated manner.
A second aspect of the present disclosure provides a method of preparing a multi-function power train oil using the multi-function power train oil composition according to the first aspect of the present disclosure, the method comprising: mixing and stirring the composition; preferably, the mixing is carried out at 50-60 ℃ and the stirring time is 2-4 hours.
The method disclosed by the invention is simple in steps and convenient to manufacture, and the multifunctional oil for the transmission system, which has good low-temperature fluidity, bearing performance, oxidation resistance and emulsification resistance, can be prepared.
A third aspect of the present disclosure provides a multifunctional driveline oil prepared using the method of the second aspect of the present disclosure.
The fourth aspect of the disclosure provides the use of the multifunctional oil for the power train of the third aspect of the disclosure in agricultural machinery, which can be used for comprehensive lubrication protection of a gearbox and a hydraulic system of large and medium agricultural machinery.
The method disclosed by the invention is simple in process, low in cost and easy to industrialize, can be used for preparing the multifunctional transmission system oil with good viscosity-temperature performance, low-temperature fluidity, bearing performance, oxidation resistance and emulsification resistance, can keep good friction performance under the condition of water, avoids wet brake vibration and abnormal sound, and improves the operation stability of equipment.
The present disclosure is further illustrated by the following examples, but is not to be construed as being limited thereby.
The experimental procedures used in the following examples and comparative examples were all conventional ones unless otherwise specified.
Materials, reagents and the like used in the following examples and comparative examples were commercially available unless otherwise specified. For example:
the 150N base oil is 150N base oil which is prepared from Yongyou Petroleum science and technology Limited in Guangzhou;
the 500N base oil is 500N base oil which is prepared from Shanghai Fine chemical industry Co., ltd;
the viscosity index improver is Vx 8-310 and is purchased from Hebei Wen Changcheng energy-saving technology Co., ltd;
isobutylene sulfide T321, available from shandong deno new materials science and technology ltd;
dibutyl phosphite T304 available from Hebei Tuotuo lubricating oil marketing Co., ltd;
the antioxidant is dialkyl zinc dithiophosphate T202 which is purchased from southern petroleum additive Co., ltd without tin;
the friction modifier is ethylene glycol oleate T403B which is purchased from Hebei Tuichong lubricating oil marketing Co., ltd;
the cleaning dispersant is succinimide T151A which is purchased from Haian petrochemical plant of Jiangsu province;
the antirust agent is synthetic calcium sulfonate T104B which is purchased from Tianjin Sontian lubricating oil science and technology limited company;
the anti-emulsifier is LZ5957, which is purchased from Gallery Jianeng chemical materials, inc.;
the anti-foaming agent was FOAM BAN155, available from Federal Fine chemical Co., ltd, guangdong.
In the present disclosure, the preparation methods of the multifunctional power train oils provided in the following examples and comparative examples are as follows: mixing the components according to the proportion, and stirring for 2-4 hours at the temperature of 50-60 ℃.
Example 1
This example provides a multifunctional transmission oil composition having the formulation shown in table 1.
Example 2
This example provides a multifunctional transmission oil composition having the formulation shown in table 1.
Example 3
The present embodiment provides a multifunctional driveline oil composition, differing only in that: 0.002 wt% of LZ5957, 0.01 wt% of FOAM BAN155, and 61.988 wt% of a Taiwan 150N base oil were used, and the other compositions and compounding ratios were the same as in example 1.
Example 4
The present embodiment provides a multifunctional driveline oil composition, differing only in that: 0.004 wt% of LZ5957, 0.01 wt% of FOAM BAN155, and 61.986 wt% of a base oil 150N, and the other components and compounding ratios are the same as in example 1.
Comparative example 1
This comparative example provides a multifunctional transmission oil composition, differing only in that: the demulsifier was replaced with the same amount of 150N base oil and the other compositions and ratios were the same as in example 1.
Comparative example 2
This comparative example provides a commercial multifunctional driveline oil that meets the JB/T7282-2016 standard.
TABLE 1
Test example
The multifunctional transmission system oils obtained in examples 1 to 4 and comparative examples 1 to 2 were tested, focusing on low temperature fluidity, load bearing performance, oxidation resistance, and friction performance in the presence of water of the oil. The results are shown in tables 2 and 3.
TABLE 2
TABLE 3
As can be seen from the data in tables 2 and 3, the multifunctional transmission system oil obtained in the embodiments 1 to 4 has good viscosity-temperature performance, low-temperature fluidity, bearing performance and oxidation resistance, and simultaneously has good compatibility with water, and can maintain good friction performance under the condition of mixing 0.2% of water, thereby effectively avoiding wet brake vibration and abnormal sound and improving the running stability of equipment. The multi-functional power train oils provided in comparative examples 1 to 2 were inferior in viscosity-temperature performance and low-temperature fluidity, and abnormal braking sounds occurred under the condition of mixing water. Therefore, the multifunctional power train oil provided in examples 1 to 4 of the present disclosure is superior in performance to comparative examples 1 to 2.
Comparison of the data from example 1 and example 3 shows that the preferred viscosity index improver to demulsifier weight ratio in the present disclosure is (800-1200): 1, the weight ratio of the extreme pressure antiwear agent to the anti-emulsifier is (400-600): 1, the prepared multifunctional oil for the transmission system has more excellent anti-emulsifying property and friction property; comparing the data of example 1 and example 4, it can be seen that the weight ratio of the anti-foaming agent to the anti-emulsifier in the present disclosure is preferably (3-6): 1, the prepared multifunctional transmission system oil has more excellent anti-foaming performance and anti-emulsifying performance.
Although the present disclosure has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the scope of the present disclosure.
Claims (11)
1. A multifunctional oil composition for a power train, characterized in that the composition comprises a base oil, a viscosity index improver, an extreme pressure antiwear agent, an anti-emulsifier and other additives; based on the total weight of the composition, the content of the base oil is 80-95 wt%, the content of the viscosity index improver is 3.0-8.0 wt%, the content of the extreme pressure antiwear agent is 0.1-4.0 wt%, the content of the anti-emulsifier is 0.001-0.1 wt%, and the content of the other additives is 0.1-8.5 wt%;
the emulsifier is a polyether type emulsifier, the other additives comprise an antifoaming agent, and the weight ratio of the viscosity index improver to the emulsifier is (800-1200): 1, the weight ratio of the extreme pressure antiwear agent to the demulsifier is (400-600): 1, the weight ratio of the antifoaming agent to the demulsifier is (3-6): 1;
wherein the viscosity index improver is a polymethacrylate viscosity index improver, and the number average molecular weight of the polymethacrylate viscosity index improver is 10000-500000; the extreme pressure antiwear agent comprises sulfurized isobutylene T321 and dibutyl phosphite T304; the antifoaming agent is dimethyl silicone oil type antifoaming agent.
2. The multifunctional driveline oil composition according to claim 1, wherein the base oil comprises a hydrogenated mineral base oil, the hydrogenated mineral base oil is a 150N base oil and/or a 500N base oil, the hydrogenated mineral base oil has a viscosity index of more than 90, and the hydrogenated mineral base oil has a saturates content of more than 98 wt%.
3. The multifunctional power train oil composition as claimed in claim 2, wherein the hydrogenated mineral base oil comprises 150N base oil and 500N base oil, and the weight ratio of the 150N base oil to the 500N base oil is (1-3): 1.
4. the multifunctional driveline oil composition according to claim 1, wherein the polyether type demulsifier is one or more selected from the group consisting of LZ5957, DL32, and T1002.
5. The multifunctional transmission oil composition according to claim 4, wherein the weight ratio of the sulfurized isobutylene T321 to the dibutyl phosphite T304 is (1-10): 1; the anti-emulsifier is LZ5957.
6. The multifunctional driveline oil composition of claim 1, wherein the weight ratio of the viscosity index improver to the demulsifier is (800-1150): 1;
the weight ratio of the extreme pressure antiwear agent to the anti-emulsifier is (400-550): 1.
7. the multifunctional transmission system oil composition according to claim 1, wherein the other additives include one or more of an antioxidant, a friction modifier, a detergent dispersant and a rust inhibitor;
the antioxidant is selected from one or more of bisphenol antioxidant, dialkyl dithiophosphate, dialkyl thiocarbamate zinc, N-phenyl-alpha-naphthylamine and dialkyl diphenylamine; the content of the antioxidant is 0.1-1.0 wt% based on the total weight of the composition;
the friction modifier is selected from one or more of benzene triazole octadecylamine salt, fatty acid, fatty alcohol, ethylene glycol oleate, butyl oleate and dimerized linoleic acid, and the content of the friction modifier is 0.1-5.0 wt% based on the total weight of the composition;
the detergent dispersant is selected from one or more of succinimide, succinate, sulfonate, ashless phosphate ester and expanded fatty acid ester, and the content of the detergent dispersant is 0.05-1.0 wt% based on the total weight of the composition;
the antirust agent is selected from one or more of sulfonate, carboxylate, phosphate and organic amine; the content of the antirust agent is 0.1-1.0 wt% based on the total weight of the composition;
the anti-foaming agent is present in an amount of 0.001 to 0.1% by weight, based on the total weight of the composition.
8. The multi-functional driveline oil composition of claim 7, wherein the other additives comprise an antioxidant, a friction modifier, a detergent dispersant and a rust inhibitor.
9. A method of preparing a multifunctional driveline oil using the composition of any one of claims 1 to 8, the method comprising: the composition is mixed and stirred.
10. The method of claim 9, wherein the mixing is performed at 50-60 ℃ and the stirring time is 2-4 hours.
11. A multifunctional driveline oil prepared by the method of claim 9 or 10.
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