CN110106013B - Boron-nitrogen lubricant composition, preparation method thereof and trace lubricant prepared by composition - Google Patents
Boron-nitrogen lubricant composition, preparation method thereof and trace lubricant prepared by composition Download PDFInfo
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- CN110106013B CN110106013B CN201910490428.1A CN201910490428A CN110106013B CN 110106013 B CN110106013 B CN 110106013B CN 201910490428 A CN201910490428 A CN 201910490428A CN 110106013 B CN110106013 B CN 110106013B
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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
- C10M159/00—Lubricating compositions characterised by the additive being of unknown or incompletely defined constitution
- C10M159/12—Reaction products
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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
- C10M167/00—Lubricating compositions characterised by the additive being a mixture of a macromolecular compound, a non-macromolecular compound and a compound of unknown or incompletely defined constitution, each of these compounds being essential
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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
- C10M173/00—Lubricating compositions containing more than 10% water
- C10M173/02—Lubricating compositions containing more than 10% water not containing mineral or fatty oils
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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
- C10M2207/287—Partial esters
- C10M2207/288—Partial esters containing free carboxyl groups
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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
- C10M2207/287—Partial esters
- C10M2207/289—Partial esters containing free hydroxy groups
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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
- 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
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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
- C10M2215/04—Amines, e.g. polyalkylene polyamines; Quaternary amines having amino groups bound to acyclic or cycloaliphatic carbon atoms
- C10M2215/042—Amines, e.g. polyalkylene polyamines; Quaternary amines having amino groups bound to acyclic or cycloaliphatic carbon atoms containing hydroxy groups; Alkoxylated derivatives thereof
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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
- C10M2219/042—Sulfate esters
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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
- 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
- C10M2227/061—Esters derived from boron
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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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- 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
- C10N2030/64—Environmental friendly compositions
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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
- 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
Abstract
The invention provides a boron-nitrogen lubricant composition which is characterized by comprising dimer acid, triethanolamine, boric acid and polyethylene glycol, wherein the molar ratio of the dimer acid to the triethanolamine is 0.5-1.5:1, and the molar ratio of the triethanolamine to the boric acid is 2-3: 1; the weight fraction ratio of the dimer acid to the polyethylene glycol is 100: 50-100. The lubricant composition prepared by the invention is a B-N type extreme pressure antiwear agent and an antirust agent, and has good lubricating property and water solubility. The invention also provides a trace lubricant prepared by the boron-nitrogen lubricant composition, which is characterized by also comprising components such as ethylhexyl palmitate, triethanolamine lauryl sulfate, castor oil maleate, lanolin alcohol and the like, and the trace lubricant prepared by the invention can meet the requirements of lubrication cooling, extreme pressure wear resistance and rust prevention of metal processing; the lubricating agent is matched with a trace lubricating device for use, so that the using amount of the lubricating agent can be saved by more than 90%, and the effects of energy conservation, emission reduction and environmental protection are remarkable.
Description
Technical Field
The invention belongs to the technical field of lubrication, and particularly relates to a boron-nitrogen lubricant composition, a preparation method thereof and a trace lubricant prepared by the composition.
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 these problems, a research on a minimal quantity lubrication technology has been advanced recently, the minimal quantity lubrication technology solves the problems of large usage amount, serious pollution and the like of the lubricant, and a problem is that a minimal quantity lubricant additive which does not contain sulfur and chlorine and has excellent extreme pressure anti-wear performance is researched by using a sulfur-containing additive and a chlorine-containing additive which are not friendly to the environment.
Since the specific heat capacity of water is relatively high, particularly in metal working, a large amount of friction and deformation heat can be taken away by vaporization of water, and therefore, the problem of application of the water-based lubricant to the minimal quantity lubrication technology is a significant proportion.
Disclosure of Invention
In view of the above, the present invention provides a boron-nitrogen lubricant composition, a method for producing the same, and a trace lubricant produced by the combination.
In order to achieve the purpose, the invention provides a boron-nitrogen lubricant composition which is characterized by being prepared from dimer acid, triethanolamine, boric acid and polyethylene glycol,
wherein the molar ratio of the dimer acid to the triethanolamine is 0.5-1.5: 1; the optimal molar ratio is 1: 1;
the molar ratio of the triethanolamine to the boric acid is 2-3: 1; the optimal molar ratio is 2.5: 1;
the weight percentage ratio of the dimer acid to the polyethylene glycol is 100: 50-100.
The polyethylene glycol is one or a mixture of polyethylene glycol with the molecular weight of 200-1000; the preferred commodity model is as follows: one or more of PEG200, PEG300, PEG400, PEG500, PEG600, PEG800 and PEG 1000.
The invention also provides a preparation method of the boron-nitrogen lubricant composition, which comprises the following steps:
the method comprises the following steps: weighing dimer acid and triethanolamine, adding into a stirrer, stirring and heating to 120 deg.C, and reacting for 1-2 hr.
Step two: weighing boric acid, adding the boric acid into the stirrer in the first step, keeping the temperature of 100-120 ℃ for reaction for 3-4 hours, adding the hydroxyethyl ethanolamine, and continuing stirring for about 1 hour.
The hydroxyethyl ethanolamine mainly plays a role of chelation, and the use amount of the hydroxyethyl ethanolamine is 30-40% of the weight of the boric acid.
Step three: and weighing polyethylene glycol, adding the polyethylene glycol into the second step, and keeping the temperature of 100-120 ℃ for reaction for 2-3 hours to obtain the boron-nitrogen lubricant composition.
The boron-nitrogen lubricant composition prepared by the method can be directly used as a trace lubricant by adding 1-5 times of water in a trace lubricating device.
In addition, the invention also provides a trace lubricant containing the boron-nitrogen lubricant composition, which is characterized by being prepared from the following components in percentage by weight:
the maleic acid castor oil ester is prepared by the esterification reaction of castor oil and maleic acid, wherein the molar ratio of the castor oil to the maleic acid is 1: 1-2; preferably in a molar ratio of 1: 1.5;
the preparation method of the maleic acid castor oil ester comprises the following steps: weighing castor oil and maleic acid, adding into a reaction kettle, stirring and heating to 220 ℃ for fully reacting for 6-8 hours, and reducing pressure to discharge water for 2-3 times during and after the reaction, namely the maleic acid castor oil ester.
In order to accelerate the reaction process, a catalyst can be added to promote the reaction, and the catalyst can be one or a mixture of several of cation exchange resin, protonic acid and phase transfer catalyst.
The catalyst is preferably phosphoric acid with the concentration of 50-85%, when the phosphoric acid is selected as the catalyst, the phosphoric acid ester compound generated by the catalytic reaction does not need to be separated, and the environmental pollution and the consumption of water, electricity, chemical reagents and the like caused by the separation of the catalyst can be reduced; meanwhile, the phosphate compound can also reduce the friction coefficient and reduce the cutter loss when trace lubricating oil is applied.
When the catalyst is phosphoric acid, the usage amount of the effective components of the phosphoric acid accounts for 0.5-1% of the total weight of the castor oil and the maleic acid.
The invention also provides a preparation method of the trace lubricant, which is characterized by comprising the following steps: weighing the boron-nitrogen lubricant composition, ethylhexyl palmitate, triethanolamine lauryl sulfate, ricinoleic maleate and lanolin alcohol, mixing and stirring at 40-60 ℃ 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 Effect of the invention
The lubricant composition prepared by the invention is a B-N type extreme pressure antiwear agent and an antirust agent, and has good lubricating property and water solubility.
In the invention, ethylhexyl palmitate provides good lubricity and good biodegradability.
In the present invention, triethanolamine lauryl sulfate is a good cationic surfactant, while having good lubricating properties.
In the invention, the maleic acid castor oil ester is a good oily anti-friction liniment and has good degradability. Castor oil reacts with maleic acid to produce castor oil maleate with high molecular weight due to the existence of 3-OH vacancies in the molecular structure.
In the present invention lanolin alcohol is a good non-ionic surface preparation, good lubricity and is biodegradable.
The trace lubricant prepared by the invention can meet the requirements of lubrication cooling, extreme pressure wear resistance 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 percent, the energy conservation and emission reduction are realized, and the environment protection effect is obvious
In the formula of the invention, after the components are mixed, weak bond acting force among molecules can occur based on respective structural characteristics, and the properties of lubricity, dissolubility, extreme pressure abrasion resistance and the like of each other are improved and excited after being dissolved mutually.
Detailed Description
Example one
The method comprises the following steps: 564.92g (1mol) of dimer acid and 149.19g (1mol) of triethanolamine are weighed and added into a stirrer together, stirred and heated to 120 ℃, and fully reacted for 1 hour.
Step two: and (3) weighing 30.92g (0.5mol) of boric acid, adding into the stirrer in the first step, keeping the temperature at 120 ℃ for reaction for 3 hours, adding 10g of hydroxyethyl ethanolamine, continuously stirring for about 1 hour, and filtering to obtain the boron-nitrogen lubricating oil composition.
Step three: 290g of polyethylene glycol (PEG200) is weighed and added into the second step, and the reaction is carried out for 2 hours at 120 ℃, thus obtaining the boron-nitrogen lubricant composition.
The boron-nitrogen lubricant composition prepared in the first embodiment can be directly used as a trace lubricant, and is added with 3 times of water to be stirred and transparent and then directly used in a trace lubricating device.
The boron-nitrogen lubricant composition is subjected to four-ball extreme pressure test by a GB/T12583 experimental method, and the test result is as follows: pD>6080N。
Example two
The method comprises the following steps: 282.46g (0.5mol) of dimer acid and 149.19g (1mol) of triethanolamine are weighed and added into a stirrer together, stirred and heated to 100 ℃, and fully reacted for 2 hours.
Step two: and (3) weighing 20.61g (1/3mol) of boric acid, adding into the stirrer in the first step, keeping the temperature at 100 ℃ for reaction for 4 hours, adding 8g of hydroxyethyl ethanolamine, continuously stirring for about 1 hour, and filtering to obtain the boron-nitrogen lubricating oil composition.
Step three: and (3) weighing 280g of polyethylene glycol (PEG300) and adding into the second step, and reacting for 3 hours at 100 ℃ to obtain the boron-nitrogen lubricant composition.
Weighing 500g of boron-nitrogen lubricant composition, 200g of ethylhexyl palmitate, 100g of triethanolamine lauryl sulfate, 100g of ricinoleate maleate and 100g of lanolin alcohol, mixing and stirring at the temperature of 40 ℃ until the mixture is transparent or semitransparent, thus obtaining the trace lubricant.
The preparation method of the ricinoleic maleate comprises the following steps: weighing 929.26g (1mol) of castor oil and 232.14g (2mol) of maleic acid, adding into a reaction kettle, stirring and heating to 200 ℃, fully reacting for 8 hours, draining water for 2 times during the reaction, and discharging water after the reaction, namely the maleic acid castor oil ester.
EXAMPLE III
The method comprises the following steps: 847.38g (1.5mol) of dimer acid and 149.19g (1mol) of triethanolamine are weighed and added into a stirrer together, stirred and heated to 110 ℃, and fully reacted for 1.5 hours.
Step two: and weighing 24.73g (0.4mol) of boric acid, adding into the stirrer in the first step, keeping the temperature at 110 ℃ for reacting for 3.5 hours, adding 8g of hydroxyethyl ethanolamine, continuously stirring for about 1 hour, and filtering to obtain the boron-nitrogen lubricating oil composition.
Step three: and (3) weighing 500g of polyethylene glycol (PEG1000) and adding into the second step, and reacting for 2.5 hours at 110 ℃ to obtain the boron-nitrogen lubricant composition.
Weighing 400g of boron-nitrogen lubricant composition, 300g of ethylhexyl palmitate, 200g of triethanolamine lauryl sulfate, 50g of ricinoleic maleate and 50g of lanolin alcohol, mixing and stirring at the temperature of 60 ℃ until the mixture is transparent or semitransparent, thus obtaining the trace lubricant.
The preparation method of the ricinoleic maleate comprises the following steps: weighing 929.26g (1mol) of castor oil and 116.07g (1mol) of maleic acid, adding into a reaction kettle, stirring and heating to 220 ℃, fully reacting for 6 hours, draining water for 1 time in the middle of the reaction, and draining water after the reaction, namely the maleic acid castor oil ester.
Example four
The method comprises the following steps: 564.92g (1mol) of dimer acid and 149.19g (1mol) of triethanolamine are weighed and added into a stirrer together, stirred and heated to 112 ℃, and fully reacted for 1.5 hours.
Step two: and weighing 24.73g (0.4mol) of boric acid, adding into the stirrer in the first step, keeping the temperature at 113 ℃ for reacting for 3.5 hours, adding 9g of hydroxyethyl ethanolamine, continuously stirring for about 1 hour, and filtering to obtain the boron-nitrogen lubricating oil composition.
Step three: and (3) weighing 300g of polyethylene glycol (PEG800), adding into the second step, and reacting for 2.5 hours at 113 ℃ to obtain the boron-nitrogen lubricant composition.
450g of boron-nitrogen lubricant composition, 250g of ethylhexyl palmitate, 150g of triethanolamine lauryl sulfate, 80g of ricinoleic maleate and 70g of lanolin alcohol are weighed, mixed and stirred at the temperature of about 50 ℃ until the mixture is transparent or semitransparent, and then the trace lubricant is obtained.
The preparation method of the ricinoleic maleate comprises the following steps: 929.26g (1mol) of castor oil, 174.11g (1.5mol) of maleic acid and 8g of phosphoric acid (85% concentration) are weighed and added into a reaction kettle together, the mixture is stirred and heated to 212 ℃, the mixture fully reacts for 7 hours, water is drained for 2 times during the reaction, and the water is drained after the reaction, so that the ricinoleic maleate is obtained.
EXAMPLE five
The method comprises the following steps: 564.92g (1mol) of dimer acid and 149.19g (1mol) of triethanolamine are weighed and added into a stirrer together, stirred and heated to 110 ℃, and fully reacted for 1.5 hours.
Step two: and weighing 24.73g (0.4mol) of boric acid, adding into the stirrer in the first step, keeping the temperature at 110 ℃ for reacting for 3.5 hours, adding 8g of hydroxyethyl ethanolamine, continuously stirring for about 1 hour, and filtering to obtain the boron-nitrogen lubricating oil composition.
Step three: and (3) weighing 400g of polyethylene glycol (PEG600) and adding into the second step, and reacting for 2.5 hours at 110 ℃ to obtain the boron-nitrogen lubricant composition.
420g of boron-nitrogen lubricant composition, 270g of ethylhexyl palmitate, 140g of triethanolamine lauryl sulfate, 90g of ricinoleate maleate and 80g of lanolin alcohol are weighed, mixed and stirred at the temperature of about 50 ℃ until the mixture is transparent or semitransparent, and then the trace lubricant is obtained.
The preparation method of the ricinoleic maleate comprises the following steps: 929.26g (1mol) of castor oil, 174.11g (1.5mol) of maleic acid and 17g of phosphoric acid (the concentration is 50%) are weighed and added into a reaction kettle together, the mixture is stirred and heated to 210 ℃, the mixture fully reacts for 7 hours, water is drained for 1 time in the middle of the reaction, and the water is drained after the reaction, so that the ricinoleic maleate is obtained.
EXAMPLE six
The method comprises the following steps: 564.92g (1mol) of dimer acid and 149.19g (1mol) of triethanolamine are weighed and added into a stirrer together, stirred and heated to about 110 ℃, and fully reacted for 1.5 hours.
Step two: and (3) weighing 24.73g (0.4mol) of boric acid, adding into the stirrer in the first step, keeping the temperature at about 110 ℃, reacting for 3.5 hours, adding 9g of hydroxyethyl ethanolamine, continuously stirring for about 1 hour, and filtering to obtain the boron-nitrogen lubricating oil composition.
Step three: and (3) weighing 500g of polyethylene glycol (PEG500) and adding into the second step, and reacting for 2.5 hours at 110 ℃ to obtain the boron-nitrogen lubricant composition.
460g of boron-nitrogen lubricant composition, 230g of ethylhexyl palmitate, 180g of triethanolamine lauryl sulfate, 60g of ricinoleate maleate and 70g of lanolin alcohol are weighed, mixed and stirred at the temperature of 40-50 ℃ until the mixture is transparent or semitransparent, and then the trace lubricant is obtained.
The preparation method of the ricinoleic maleate comprises the following steps: weighing 929.26g (1mol) of castor oil, 174.11g (1.5mol) of maleic acid and 15g of phosphoric acid (concentration is 50%) and adding the materials into a reaction kettle, stirring and heating to about 210 ℃, fully reacting for 7 hours, draining water in the middle of the reaction for 2 times, and discharging water after the reaction to obtain the ricinoleic maleate.
Mixing and stirring the trace lubricant and the water prepared in the sixth embodiment according to a ratio of 1:1, and applying the mixture to turning of aluminum alloy parts, wherein the type of a numerical control lathe is as follows: CZ-30. The original circulation lubrication cooling by using the emulsified cutting fluid (the concentration is about 5 percent) is changed into a KS-2106 minimal quantity lubrication device (a 2-nozzle, the used nozzle is an energy-saving nozzle provided by Shanghai Jinmega energy-saving technology limited company) and the minimal quantity lubricant, the working time is 8 hours/day, and the results are as follows:
| item | Conventional lubrication method | Micro-lubrication mode |
| Consumption of Lubricant (liter/day) | 10 liters of water | 0.28 liter |
| Average service life of turning tool | 7 days | 11 days |
Claims (8)
1. A minimal amount of lubricant characterized by: the paint is prepared from the following components in percentage by weight:
the boron-nitrogen lubricant composition is characterized in that: is prepared from dimer acid, triethanolamine, boric acid and polyethylene glycol,
the molar ratio of the dimer acid to the triethanolamine is 0.5-1.5: 1;
the molar ratio of the triethanolamine to the boric acid is 2-3: 1;
the weight percentage ratio of the dimer acid to the polyethylene glycol is 100: 50-100;
the preparation method of the boron-nitrogen lubricant composition comprises the following steps:
the method comprises the following steps: weighing dimer acid and triethanolamine, adding into a stirrer together, stirring and heating to 120 ℃, and fully reacting for 1-2 hours;
step two: weighing boric acid, adding the boric acid into the stirrer in the step one, keeping the temperature of 100-120 ℃ for reaction for 3-4 hours, adding the hydroxyethyl ethanolamine, and continuously stirring for about 1 hour;
the dosage of the hydroxyethyl ethanolamine is 30-40% of the weight of the boric acid;
step three: weighing polyethylene glycol, adding the polyethylene glycol into the second step, and keeping the temperature of 100-120 ℃ for reaction for 2-3 hours to obtain the boron-nitrogen lubricant composition;
the preparation method of the ricinoleic maleate comprises the following steps: weighing castor oil and maleic acid, adding into a reaction kettle, stirring and heating to 220 ℃ for 200 plus materials, fully reacting for 6-8 hours, and reducing pressure to discharge water for 2-3 times during and after the reaction, namely the maleic acid castor oil ester; wherein the molar ratio of the castor oil to the maleic acid is 1: 1-2.
2. The minimal lubricant as set forth in claim 1, wherein:
the molar ratio of the dimer acid to the triethanolamine is 1: 1;
the molar ratio of the triethanolamine to the boric acid is 2.5: 1.
3. The minimal lubricant as set forth in claim 1, wherein:
the polyethylene glycol is one or a mixture of polyethylene glycol with the molecular weight of 200-1000.
4. The minimal lubricant as set forth in claim 1, wherein:
the polyethylene glycol is selected from the following commodity models: one or more of PEG200, PEG300, PEG400, PEG500, PEG600, PEG800 and PEG 1000.
5. The minimal lubricant as set forth in claim 1, wherein:
the molar ratio of castor oil to maleic acid is 1: 1.5.
6. The minimal lubricant as set forth in claim 1, wherein:
the preparation method of the ricinoleic maleate also adds a catalyst to promote the reaction, and the catalyst is one or a mixture of several of cation exchange resin, protonic acid and phase transfer catalyst.
7. The minimal amount of lubricant as set forth in claim 6, wherein:
the catalyst is phosphoric acid with the concentration of 50-85%;
the usage amount of the phosphoric acid effective component accounts for 0.5-1% of the total weight of the castor oil and the maleic acid.
8. A method of producing a minimal quantity of lubricant as claimed in any one of claims 1 to 7, wherein:
weighing the boron-nitrogen lubricant composition, ethylhexyl palmitate, triethanolamine lauryl sulfate, ricinoleic maleate and lanolin alcohol, mixing and stirring at 40-60 ℃ until the mixture is transparent or semitransparent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910490428.1A CN110106013B (en) | 2019-06-10 | 2019-06-10 | Boron-nitrogen lubricant composition, preparation method thereof and trace lubricant prepared by composition |
Applications Claiming Priority (1)
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