CN115404116B - Trace lubricant and preparation method thereof - Google Patents

Trace lubricant and preparation method thereof Download PDF

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Publication number
CN115404116B
CN115404116B CN202211251414.2A CN202211251414A CN115404116B CN 115404116 B CN115404116 B CN 115404116B CN 202211251414 A CN202211251414 A CN 202211251414A CN 115404116 B CN115404116 B CN 115404116B
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lubricant
trace
tetrabutyl titanate
aeo
lubricant composition
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CN115404116A (en
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吴启东
张乃庆
邱秋敏
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Shanghai Jinzhao Energy Saving Technology Co Ltd
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Shanghai Jinzhao Energy Saving Technology Co Ltd
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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
    • C10M163/00—Lubricating compositions characterised by the additive being a mixture of a compound of unknown or incompletely defined constitution and a non-macromolecular compound, each of these compounds being essential
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C67/00—Preparation of carboxylic acid esters
    • C07C67/08—Preparation of carboxylic acid esters by reacting carboxylic acids or symmetrical anhydrides with the hydroxy or O-metal group of organic compounds
    • 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
    • C10M129/00—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing oxygen
    • C10M129/02—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing oxygen having a carbon chain of less than 30 atoms
    • C10M129/68—Esters
    • C10M129/72—Esters of polycarboxylic acids
    • 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
    • C10M173/00—Lubricating compositions containing more than 10% water
    • C10M173/02—Lubricating compositions containing more than 10% water not containing mineral or fatty oils
    • 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
    • C10M2207/021—Hydroxy compounds having hydroxy groups bound to acyclic or cycloaliphatic carbon atoms
    • 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
    • C10M2207/12—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms
    • C10M2207/125—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of eight up to twenty-nine carbon atoms, i.e. fatty acids
    • C10M2207/126—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of eight up to twenty-nine carbon atoms, i.e. fatty acids monocarboxylic
    • 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
    • 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
    • C10M2209/00—Organic macromolecular compounds containing oxygen as ingredients in lubricant compositions
    • C10M2209/10—Macromolecular compoundss obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • C10M2209/103—Polyethers, i.e. containing di- or higher polyoxyalkylene groups
    • C10M2209/104—Polyethers, i.e. containing di- or higher polyoxyalkylene groups of alkylene oxides containing two carbon atoms only
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2209/00—Organic macromolecular compounds containing oxygen as ingredients in lubricant compositions
    • C10M2209/10—Macromolecular compoundss obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • C10M2209/103—Polyethers, i.e. containing di- or higher polyoxyalkylene groups
    • C10M2209/108—Polyethers, i.e. containing di- or higher polyoxyalkylene groups etherified
    • 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
    • C10M2215/04—Amines, e.g. polyalkylene polyamines; Quaternary amines having amino groups bound to acyclic or cycloaliphatic carbon atoms
    • 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
    • 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
    • C10M2223/00—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions
    • C10M2223/10—Phosphatides, e.g. lecithin, cephalin
    • 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
    • C10M2227/00—Organic non-macromolecular compounds containing atoms of elements not provided for in groups C10M2203/00, C10M2207/00, C10M2211/00, C10M2215/00, C10M2219/00 or C10M2223/00 as ingredients in lubricant compositions
    • C10M2227/06—Organic compounds derived from inorganic acids or metal salts
    • C10M2227/065—Organic compounds derived from inorganic acids or metal salts derived from Ti or Zr
    • 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
    • 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
    • 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
    • C10N2030/40—Low content or no content compositions
    • C10N2030/41—Chlorine free or low chlorine content compositions
    • 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
    • C10N2030/40—Low content or no content compositions
    • C10N2030/43—Sulfur free or low sulfur content compositions
    • 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
    • C10N2040/00—Specified use or application for which the lubricating composition is intended
    • C10N2040/20—Metal working
    • C10N2040/22—Metal working with essential removal of material, e.g. cutting, grinding or drilling
    • 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
    • C10N2060/00—Chemical after-treatment of the constituents of the lubricating composition
    • C10N2060/02—Reduction, e.g. hydrogenation
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working

Abstract

The invention provides a trace lubricant composition which is characterized by being prepared from tetrabutyl titanate, isostearic acid, isooctyl alcohol, diisooctylamine and hydrogenated lecithin, wherein the molar ratio of the tetrabutyl titanate to the isostearic acid is 1:2-3; the molar ratio of tetrabutyl titanate to isooctyl alcohol is 1:1-2; the molar ratio of tetrabutyl titanate to diisooctylamine is 1:1-1.5; the hydrogenated lecithin is present in an amount of 3 to 5 weight percent based on the total weight of the lubricant composition. The trace lubricant composition prepared by the invention is an extreme pressure antiwear antirust agent containing Ti-N-P and having good lubricating property, and the biological surfactant hydrogenated lecithin is added to enhance the hydrophilic property of the system, so that the water-soluble trace lubricant is easy to prepare, and the extreme pressure antiwear agent with excellent antifriction property can completely or partially replace S and Cl which have adverse effects on the environment.

Description

Trace lubricant and preparation method thereof
Technical Field
The invention belongs to the technical field of lubrication, and particularly relates to a trace lubricant and a preparation method thereof.
Background
The traditional metal cutting processing adopts mineral oil or vegetable oil or cutting fluid to carry out a large amount of flushing lubrication, the using amount of the lubricant is large, resources are wasted, great pollution to processing places and environment is caused, and meanwhile, the health of operators is seriously influenced.
In order to solve the problems, a research on a trace lubrication technology is advanced to a certain extent recently, the trace lubrication technology solves the problems of large using amount, serious pollution and the like of the lubricant, but excessive use of the lubricant contains sulfur-containing and chlorine-containing additives which are not friendly to the environment, and certain influence is caused on the environment. Meanwhile, when metal which is difficult to machine is machined, the ideal effect is often difficult to achieve through trace lubrication. The trace amount of lubricant developed by using synthetic ester as base oil can basically achieve relatively ideal lubricating effect, but in the using process, because the instant friction and deformation in processing are too large in heat generation amount, partial ester molecules are decomposed and evaporated, unpleasant odor is generated, and the actual use is influenced.
When metals which are difficult to machine (such as titanium alloy and other alloys with wide application in aerospace) are machined, the problems of high machining difficulty and low machining efficiency are faced regardless of the traditional lubricating oil agent spraying machining or the micro-lubricating mode machining.
The use of part of water in the lubricant formula can lead the friction and deformation heat to be dissipated more quickly, and the research on a lubricant additive and the application thereof in the minimal quantity lubrication technology is a topic with practical value.
Disclosure of Invention
In view of the above problems, the present invention aims to overcome the disadvantages of the prior art and to provide a minimal amount of lubricant composition.
In order to achieve the purpose, the invention provides a trace lubricant composition which is characterized by being prepared from tetrabutyl titanate, isostearic acid, isooctyl alcohol, diisooctylamine and hydrogenated lecithin, wherein the molar ratio of the tetrabutyl titanate to the isostearic acid is 1:2-3; the molar ratio of tetrabutyl titanate to isooctyl alcohol is 1:1-2; the molar ratio of tetrabutyl titanate to diisooctylamine is 1:1-1.5; the hydrogenated lecithin is present in an amount of 3 to 5 weight percent based on the total weight of the lubricant composition.
The tetrabutyl titanate can react with isostearic acid and isooctyl alcohol for transesterification to generate titanate with strong lubricating property and extreme pressure property, reacts with diisooctylamine to generate organic salt with good Ti-N type extreme pressure wear resistance, and can be combined with hydrogenated lecithin to generate Ti-P type extreme pressure wear-resistant agent.
The isostearic acid can react with tetrabutyl titanate to generate corresponding titanate, and the isostearic acid and diisooctylamine can perform neutralization reaction to generate corresponding organic salt with good antirust performance.
The isooctanol can generate ester exchange reaction with tetrabutyl titanate to generate corresponding titanate.
The diisooctylamine can be used for generating organic salt with good Ti-N extreme pressure anti-wear performance with tetrabutyl titanate, reacting with isostearic acid to generate corresponding organic salt with good anti-rust performance, and combining with hydrogenated lecithin to generate the N-P extreme pressure anti-wear agent.
The hydrogenated lecithin is a natural surfactant and enhances the hydrophilic performance of the system; after being compounded with titanate and diisooctylamine, the composite lubricant also has good lubricity and extreme pressure wear resistance (Ti-N-P extreme pressure wear-resistant agent).
The invention also provides a preparation method of the lubricant composition, which comprises the following steps:
the method comprises the following steps: weighing tetrabutyl titanate, isostearic acid and isooctanol, adding into a reaction kettle, mixing and stirring uniformly, stirring and heating to 118-120 ℃, fully reacting for 60-90 minutes, and vacuumizing to remove n-butanol after the reaction is finished (the removed n-butanol is recovered after being condensed by a condenser);
step two: and (3) when the temperature in the first step is reduced to below 110 ℃, adding the weighed diisooctylamine and the hydrogenated lecithin, and fully reacting at the temperature of 100-110 ℃ for 60-90 minutes to obtain the trace lubricant composition.
In addition, the invention also provides a trace lubricant containing the trace lubricant composition, which is characterized by being prepared from the following components in percentage by weight:
20-30% of trace lubricant composition;
20-30% of diisotridecyl sebacate;
10-20% of lauramidopropyl betaine;
5-10% of fatty alcohol-polyoxyethylene ether;
the balance of deionized water.
The diisotridecyl sebacate is prepared by esterification of sebacic acid and isotridecyl alcohol.
The mole ratio of the sebacic acid to the isotridecanol is 1:2-2.2.
The specific preparation method of the diisotridecyl sebacate comprises the following steps:
weighing sebacic acid, isotridecanol and a catalyst, adding into a reaction kettle, and reacting at the reaction temperature of 180-200 ℃ for 5-6 hours; the water is drained for 1-2 times in a decompression way in the reaction process, and the water is drained in a decompression way after the reaction is finished; i.e. diisotridecyl sebacate.
The catalyst can be one or a mixture of more of Lewis acid, molecular sieve, cation exchange resin and rare earth oxide.
The catalyst is preferably phosphorus pentoxide in an amount of 0.2 to 0.5% by weight based on the total weight of the reactants. The phosphorus pentoxide has the advantages that phosphate ester generated in the catalytic process of the phosphorus pentoxide has good extreme pressure antiwear effect, the catalyst does not need to be separated after the reaction is completed, the environmental pollution and the consumption of water, electricity, chemical reagents and the like caused by separating the catalyst can be reduced, the energy is saved, the emission is reduced, and the environmental protection effect is obvious.
The lauramidopropyl betaine amphoteric surfactant has excellent degradability and can be compatible with cationic, anionic and nonionic surfactants.
The fatty alcohol-polyoxyethylene ether is preferably one or a mixture of more of AEO-6, AEO-7, AEO-8, AEO-9, AEO-10 and AEO-12.
The invention also provides a preparation method of the trace lubricant, which is characterized by comprising the following steps: weighing a trace amount of lubricant composition, diisotridecyl sebacate, lauramidopropyl betaine, fatty alcohol-polyoxyethylene ether and deionized water, mixing and stirring at room temperature until the mixture is transparent or semitransparent.
In the using process, 1-5 times of water is added into the trace lubricant, and the mixture is stirred until the mixture is transparent or semitransparent and then is added into a trace lubricating device for use.
Action and effects of the invention
The trace lubricant composition prepared by the invention is an extreme pressure antiwear antirust agent containing Ti-N-P and having good lubricating property, and the biological surfactant hydrogenated lecithin is added to enhance the hydrophilic property of the system, so that the water-soluble trace lubricant is easy to prepare, and the extreme pressure antiwear agent with excellent antifriction property can completely or partially replace S and Cl which have adverse effects on the environment.
The diisotridecyl sebacate in the invention has good lubricity and excellent biodegradability, has appropriate kinematic viscosity, and can disperse and dissolve other trace lubricating oil components.
The lauramidopropyl betaine in the invention has excellent degradability and can be compatible with cationic, anionic and nonionic surfactants.
The fatty alcohol-polyoxyethylene ether is an environment-friendly nonionic surfactant and has good biodegradability.
The trace lubricant prepared by the invention can meet the requirements of lubrication cooling, extreme pressure refreshing environment and rust prevention in metal processing; the cutting fluid is matched with a trace lubricating device for use, the use amount of the cutting fluid can be saved by more than 90%, and the effects of energy conservation, emission reduction and environmental protection are remarkable.
In the formula of the invention, after the components are mixed, weak bond acting force between molecules can occur based on respective structural characteristics, and the lubricating property and the solubility of the components are improved and excited after being dissolved mutually.
Detailed Description
Example one
The method comprises the following steps: weighing 340.32g (1 mol) of tetrabutyl titanate, 588.96 (2 mol) of isostearic acid and 260.46g (2 mol) of isooctanol, adding into a reaction kettle, mixing and stirring uniformly, stirring and heating to 118 ℃, fully reacting for 90 minutes, and vacuumizing to remove n-butanol after the reaction is finished;
step two: when the temperature in the first step is reduced to below 110 ℃, 173.03g (1.1 mol) of diisooctylamine and 45g of hydrogenated lecithin which are weighed are added to fully react for 80 minutes at the temperature of 103 ℃, and then the trace lubricating oil composition is obtained.
Weighing 300g of the prepared trace lubricant composition, 200g of diisotridecyl sebacate, 100g of lauramidopropyl betaine, 100g of fatty alcohol-polyoxyethylene ether (AEO-6) and 300g of deionized water, mixing and stirring at room temperature until the mixture is transparent to obtain the trace lubricant.
The specific preparation method of the diisotridecyl sebacate comprises the following steps:
weighing 202.25g (1 mol) of sebacic acid, 440.79g (2.2 mol) of isotridecanol and 1.5g of phosphorus pentoxide, adding into a reaction kettle, and reacting at the reaction temperature of 180 ℃ for 6 hours; the water is discharged for 2 times in the process of reaction under reduced pressure, and the water is discharged under reduced pressure after the reaction is finished; namely diisotridecyl sebacate.
Example two
The method comprises the following steps: weighing 340.32g (1 mol) of tetrabutyl titanate, 853.44 (3 mol) of isostearic acid and 130.23g (1 mol) of isooctanol, adding into a reaction kettle, mixing and stirring uniformly, stirring and heating to 118 ℃, fully reacting for 90 minutes, and vacuumizing to remove n-butanol after the reaction is finished;
step two: when the temperature in the first step is reduced to below 110 ℃, 157.3g (1 mol) of the weighted diisooctylamine and 50g of the hydrogenated lecithin are added to fully react for 60 minutes at the temperature of 110 ℃, and then the trace lubricating oil composition is obtained.
200g of the prepared trace lubricant composition, 300g of diisotridecyl sebacate, 200g of lauramidopropyl betaine, 50g of fatty alcohol polyoxyethylene ether (AEO-8) and 250g of deionized water are weighed, mixed and stirred at room temperature until the mixture is transparent, and then the trace lubricant is obtained.
EXAMPLE III
The method comprises the following steps: weighing 340.32g (1 mol) of tetrabutyl titanate, 711.2 (2.5 mol) of isostearic acid and 195.35g (1.5 mol) of isooctanol, adding into a reaction kettle, mixing and stirring uniformly, stirring and heating to 119 ℃, fully reacting for 70 minutes, and vacuumizing to remove n-butanol after the reaction is finished;
step two: when the temperature in the first step is reduced to below 110 ℃, 157.3g (1 mol) of the weighted diisooctylamine and 70g of the hydrogenated lecithin are added to fully react for 90 minutes at the temperature of 100 ℃, and then the trace lubricating oil composition is obtained.
250g of the prepared trace lubricant composition, 250g of diisotridecyl sebacate, 120g of lauramidopropyl betaine, 60g of fatty alcohol polyoxyethylene ether (AEO-9) and 320g of deionized water are weighed, mixed and stirred at room temperature until the mixture is transparent, and then the trace lubricant is obtained.
The specific preparation method of the diisotridecyl sebacate comprises the following steps:
weighing 202.25g (1 mol) of sebacic acid, 420.76g (2.1 mol) of isotridecanol and 3g of phosphorus pentoxide, adding into a reaction kettle, and reacting at the reaction temperature of 190 ℃ for 6 hours; the water is discharged for 1 time in the process of reaction, and the water is discharged in a reduced pressure after the reaction is finished; namely diisotridecyl sebacate.
Example four
The method comprises the following steps: weighing 340.32g (1 mol) of tetrabutyl titanate, 588.96 (2 mol) of isostearic acid and 130.23g (1 mol) of isooctanol, adding into a reaction kettle, mixing and stirring uniformly, stirring and heating to 120 ℃, reacting for 80 minutes fully, and vacuumizing to remove n-butanol after the reaction is finished;
step two: when the temperature in the first step is reduced to below 110 ℃, 157.3g (1 mol) of the weighed diisooctylamine and 51g of the hydrogenated lecithin are added to fully react for 90 minutes at the temperature of 100 ℃, and then the trace lubricating oil composition is obtained.
220g of the prepared trace lubricant composition, 240g of diisotridecyl sebacate, 160g of lauramidopropyl betaine, 80g of fatty alcohol-polyoxyethylene ether (AEO-7) and 300g of deionized water are weighed, mixed and stirred at room temperature until the mixture is transparent, and the trace lubricant is obtained.
EXAMPLE five
The method comprises the following steps: weighing 340.32g (1 mol) of tetrabutyl titanate, 588.96 (2 mol) of isostearic acid and 195.35g (1.5 mol) of isooctyl alcohol, adding into a reaction kettle, uniformly mixing and stirring, stirring and heating to 120 ℃, fully reacting for 75 minutes, and vacuumizing to remove n-butanol after the reaction is finished;
step two: when the temperature in the first step is reduced to below 110 ℃, 157.3g (1 mol) of the weighed diisooctylamine and 48g of hydrogenated lecithin are added to fully react for 80 minutes at 105 ℃, and then the trace lubricating oil composition is obtained.
280g of the prepared trace lubricant composition, 210g of diisotridecyl sebacate, 160g of lauramidopropyl betaine, 70g of fatty alcohol-polyoxyethylene ether (AEO-9) and 280g of deionized water are weighed, mixed and stirred at room temperature until the mixture is transparent, and then the trace lubricant is obtained.
Example six
The method comprises the following steps: weighing 340.32g (1 mol) of tetrabutyl titanate, 588.96 (2 mol) of isostearic acid and 195.35g (1.5 mol) of isooctyl alcohol, adding into a reaction kettle, uniformly mixing and stirring, stirring and heating to 120 ℃, fully reacting for 75 minutes, and vacuumizing to remove n-butanol after the reaction is finished;
step two: when the temperature in the first step is reduced to below 110 ℃, 157.3g (1 mol) of the weighted diisooctylamine and 55g of the hydrogenated lecithin are added, and the mixture fully reacts for 80 minutes at the temperature of 105 ℃, so that the trace lubricating oil composition is obtained.
280g of the prepared trace lubricant composition, 270g of diisotridecyl sebacate, 90g of lauramidopropyl betaine, 60g of fatty alcohol-polyoxyethylene ether (AEO-10) and 300g of deionized water are weighed, mixed and stirred at room temperature until the mixture is transparent, and the trace lubricant is obtained.
The prepared trace lubricant and water are uniformly mixed and stirred according to the weight ratio of 1:
item KS-1154 minimal quantity lubricant This example minimal quantity of Lubricant
Daily lubricant consumption (8 hour meter) 0.6kg (according to 1 0.55kg (water according to 1
Processing efficiency (person/day) 1 1.2 (efficiency is improved by about 20%)

Claims (8)

1. The trace lubricant is characterized by being prepared from the following components in percentage by weight:
20-30% of trace lubricant composition;
20-30% of diisotridecyl sebacate;
10-20% of lauramidopropyl betaine;
5-10% of fatty alcohol-polyoxyethylene ether;
the balance of deionized water;
the trace lubricant composition is prepared from tetrabutyl titanate, isostearic acid, isooctyl alcohol, diisooctylamine and hydrogenated lecithin, wherein the molar ratio of the tetrabutyl titanate to the isostearic acid is 1:2-3; the molar ratio of tetrabutyl titanate to isooctanol is 1:1-2; the molar ratio of tetrabutyl titanate to diisooctylamine is 1:1-1.5; the hydrogenated lecithin accounts for 3-5% of the total weight of the lubricant composition;
the preparation method of the trace lubricant composition comprises the following steps:
the method comprises the following steps: weighing tetrabutyl titanate, isostearic acid and isooctyl alcohol, adding into a reaction kettle, uniformly mixing and stirring, stirring and heating to 118-120 ℃, fully reacting for 60-90 minutes, and vacuumizing to remove n-butanol after the reaction is finished;
step two: when the temperature in the first step is reduced to below 110 ℃, adding the weighed diisooctylamine and hydrogenated lecithin, and fully reacting at the temperature of 100-110 ℃ for 60-90 minutes to obtain the trace lubricant composition.
2. The minimal lubricant as set forth in claim 1, wherein:
the diisotridecyl sebacate is prepared by esterification of sebacic acid and isotridecyl alcohol;
the mole ratio of the sebacic acid to the isotridecanol is 1:2-2.2.
3. The minimal quantity lubricant as set forth in claim 1, wherein:
the specific preparation method of the diisotridecyl sebacate comprises the following steps:
weighing sebacic acid, isotridecanol and a catalyst, adding the mixture into a reaction kettle, and reacting at the reaction temperature of 180-200 ℃ for 5-6 hours; the water is drained for 1-2 times in a decompression way in the reaction process, and the water is drained in a decompression way after the reaction is finished; i.e. diisotridecyl sebacate.
4. The minimal quantity lubricant as set forth in claim 3, wherein:
the catalyst is one or a mixture of Lewis acid, molecular sieve, cation exchange resin and rare earth oxide.
5. The minimal amount of lubricant as set forth in claim 3, wherein:
the catalyst is phosphorus pentoxide, and the dosage of the catalyst is 0.2-0.5% of the total weight of reactants.
6. The minimal quantity lubricant as set forth in claim 1, wherein:
the fatty alcohol-polyoxyethylene ether is one or a mixture of more of AEO-6, AEO-7, AEO-8, AEO-9, AEO-10 and AEO-12.
7. The method for producing a minimal quantity of lubricant as claimed in any one of claims 1 to 6, wherein:
weighing a trace amount of lubricant composition, diisotridecyl sebacate, lauramidopropyl betaine, fatty alcohol-polyoxyethylene ether and deionized water, mixing and stirring at room temperature until the mixture is transparent or semitransparent.
8. Use of a minimal quantity of lubricant according to any of claims 1 to 6, characterized in that:
adding 1-5 times of water into the trace lubricant, stirring until the trace lubricant is transparent or semitransparent, and adding the trace lubricant into a trace lubricating device for use.
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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105038907A (en) * 2015-08-05 2015-11-11 苏州赛斯德工程设备有限公司 Preparation method of lubricant oil additive
CN105229125A (en) * 2013-05-14 2016-01-06 巴斯夫欧洲公司 There is the lubricating oil composition strengthening energy efficiency
US20160376518A1 (en) * 2013-11-28 2016-12-29 Basf Se Composition for low temperature
CN108949331A (en) * 2018-07-10 2018-12-07 钱敏伟 A kind of water base lathe rust preventive cutting fluid and preparation method thereof
CN109439386A (en) * 2018-12-02 2019-03-08 上海金兆节能科技有限公司 Environment-friendly degradable micro lubricating oil and preparation method thereof
CN112226267A (en) * 2020-11-12 2021-01-15 中国石油化工股份有限公司 Extreme pressure trace lubricating cutting oil composition, preparation method and application thereof

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105229125A (en) * 2013-05-14 2016-01-06 巴斯夫欧洲公司 There is the lubricating oil composition strengthening energy efficiency
US20160376518A1 (en) * 2013-11-28 2016-12-29 Basf Se Composition for low temperature
CN105038907A (en) * 2015-08-05 2015-11-11 苏州赛斯德工程设备有限公司 Preparation method of lubricant oil additive
CN108949331A (en) * 2018-07-10 2018-12-07 钱敏伟 A kind of water base lathe rust preventive cutting fluid and preparation method thereof
CN109439386A (en) * 2018-12-02 2019-03-08 上海金兆节能科技有限公司 Environment-friendly degradable micro lubricating oil and preparation method thereof
CN112226267A (en) * 2020-11-12 2021-01-15 中国石油化工股份有限公司 Extreme pressure trace lubricating cutting oil composition, preparation method and application thereof

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