CN109370720A - Low-noise lubricating grease and preparation method thereof - Google Patents

Low-noise lubricating grease and preparation method thereof Download PDF

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Publication number
CN109370720A
CN109370720A CN201811273974.1A CN201811273974A CN109370720A CN 109370720 A CN109370720 A CN 109370720A CN 201811273974 A CN201811273974 A CN 201811273974A CN 109370720 A CN109370720 A CN 109370720A
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China
Prior art keywords
oil
organic amine
diisocyanate
low
lubricating grease
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CN201811273974.1A
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Inventor
吕方敏
张菊
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Suzhou Nine City Lubricating Oil Co Ltd
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Suzhou Nine City Lubricating Oil Co Ltd
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Priority to CN201811273974.1A priority Critical patent/CN109370720A/en
Publication of CN109370720A publication Critical patent/CN109370720A/en
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    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M169/00—Lubricating compositions characterised by containing as components a mixture of at least two types of ingredient selected from base-materials, thickeners or additives, covered by the preceding groups, each of these compounds being essential
    • C10M169/04—Mixtures of base-materials and additives
    • C10M169/048—Mixtures of base-materials and additives the additives being a mixture of compounds of unknown or incompletely defined constitution, non-macromolecular and macromolecular compounds
    • 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
    • C10M2205/00—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions
    • C10M2205/02—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing acyclic monomers
    • C10M2205/022—Ethene
    • 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
    • C10M2205/00—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions
    • C10M2205/02—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing acyclic monomers
    • C10M2205/024—Propene
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
    • C10M2207/02—Hydroxy compounds
    • C10M2207/023—Hydroxy compounds having hydroxy groups bound to carbon atoms of six-membered aromatic rings
    • 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
    • C10M2207/283—Esters of polyhydroxy 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
    • 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
    • C10M2209/102—Polyesters
    • C10M2209/1023—Polyesters used as base material
    • 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
    • C10M2215/02—Amines, e.g. polyalkylene polyamines; Quaternary amines
    • C10M2215/06—Amines, e.g. polyalkylene polyamines; Quaternary amines having amino groups bound to carbon atoms of six-membered aromatic rings
    • 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
    • C10M2215/14—Containing carbon-to-nitrogen double bounds, e.g. guanidines, hydrazones, semicarbazones
    • 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
    • C10M2219/02—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
    • 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
    • C10M2219/06—Thio-acids; Thiocyanates; Derivatives thereof
    • C10M2219/062—Thio-acids; Thiocyanates; Derivatives thereof having carbon-to-sulfur double bonds
    • C10M2219/066—Thiocarbamic type compounds
    • C10M2219/068—Thiocarbamate metal salts
    • 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
    • C10M2223/02—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions having no phosphorus-to-carbon bonds
    • C10M2223/04—Phosphate esters
    • C10M2223/041—Triaryl phosphates
    • 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
    • C10M2223/02—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions having no phosphorus-to-carbon bonds
    • C10M2223/04—Phosphate esters
    • C10M2223/043—Ammonium or amine salts thereof
    • 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
    • C10M2229/00—Organic macromolecular compounds containing atoms of elements not provided for in groups C10M2205/00, C10M2209/00, C10M2213/00, C10M2217/00, C10M2221/00 or C10M2225/00 as ingredients in lubricant compositions
    • C10M2229/04—Siloxanes with specific structure
    • C10M2229/041—Siloxanes with specific structure containing aliphatic substituents
    • 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
    • C10N2030/08—Resistance to extreme temperature
    • 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
    • C10N2030/76—Reduction of noise, shudder, or vibrations

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Chemistry (AREA)
  • Lubricants (AREA)

Abstract

The invention discloses a kind of low-noise lubricating grease and preparation method thereof, the low-noise lubricating grease includes following weight percentage components: base oil 40-50%；Thickening agent 30-35%；Vibration damping agent 20-25%；Antiwear additive 1-5%；Extreme-pressure antiwear compound additive for lubricating oil 1-2%；The base oil is polyester；The preparation method of the low-noise lubricating grease: it comprises the steps of: A, be added to organic amine in 1/2 base oil, be heated to organic amine and dissolve completely；B, diisocyanate is added in remaining base oil again, is heated to dissolving；C, then being added in organic amine oil to be sufficiently stirred by diisocyanate ester oil reacts organic amine completely with diisocyanate, temperature of charge is increased to 100-120 DEG C at this time, stirring simultaneously constant temperature 30 minutes at this temperature, are added vibration damping agent, antiwear additive and extreme-pressure antiwear compound additive for lubricating oil after being cooled to 30 DEG C；The present invention can be biodegradable, good environmental protection；The preparation method of low-noise lubricating grease of the present invention is simple, practical.

Description

Low-noise lubricating grease and preparation method thereof
Technical field
The present invention relates to a kind of improvement of low-noise lubricating grease, and in particular to it is a kind of with excellent bass performance, it is excellent Bearing sound quality cover performance, excellent high temperature and cryogenic property, good mechanical stability, colloid stability and anti-oxidant peace Qualitative, excellent greasy property, Corrosion Protection and long service life, while can be biodegradable, the low noise of good environmental protection Sound lubricating grease and preparation method thereof.
Background technique
Current existing low noise bearing is moistened in lubricating grease kind with lithium base grease, complex lithium grease and polyureas Based on consistent lubricant.In terms of the vibration performance of sealing bearing, the initiation value of lithium base grease is lower, can reach in a very short period of time Stationary value the starting quietness of lithium base grease and operates mute better performances after special processing, but high temperature resistance, cuts Cut stability, water-resistance can not meet the development of bearing technology.Complex lithium grease improves anti-softening ability when high temperature, But fiber is caused to enhance the constraint ability of base oil simultaneously, static colloid point oil is lower, corresponding oily smaller, the molecule of dynamic point Internal friction increases when mutually moving, and the apparent viscosity under identical rate of shear increases, and causes in the lubricated of Sealed Rolling Bearing with Low Noise Starved Lubrication aggravates in journey, and bearing noise performance is not good enough.Polyurea grease has using temperature height, and the service life is long, good fluidity The advantages that, but production technology is complicated, acoustic property is unstable, and product quality is difficult to control, and higher cost, meanwhile, it is existing low Noise lubricating grease cannot be biodegradable, and environmental-protecting performance is poor.
For this purpose, we have developed a kind of bearing sound quality cover performance, excellent height with excellent bass performance, excellent Temperature and cryogenic property, good mechanical stability, colloid stability and anti-oxidative stability, excellent greasy property, anticorrosion Performance and long service life, while can be biodegradable, low-noise lubricating grease of good environmental protection and preparation method thereof.
Summary of the invention
It is covered in order to solve the above technical problems, the present invention provides a kind of bearing sound quality with excellent bass performance, excellent It is lid performance, excellent high temperature and cryogenic property, good mechanical stability, colloid stability and anti-oxidative stability, excellent Greasy property, Corrosion Protection and long service life, at the same can biodegrade, the low-noise lubricating grease of good environmental protection and its Preparation method.
Low-noise lubricating grease of the present invention, including following weight percentage components:
The base oil is polyester；
The thickening agent is organic amine and diisocyanate；
The vibration damping agent is pentaerythritol fatty acid ester (PE1, 40 DEG C of viscosity 14.67mm2/ s) or trihydroxymethylpropanyl ester (TMP1,40℃ Viscosity 16.8mm2/s)；
The antiwear additive is sulfide isobutene extreme pressure anti-wear additives, tricresyl phosphate extreme pressure anti-wear additives or phosphorous di-n-butyl extreme pressure One of antiwear additive is a variety of.
Preferably, the organic amine is the mixture of C12-C18 alkylamine Yu C6-C8 arylamine, and the mass ratio of the two is 10: 1 to 1:16；It is preferred that 6.5:1 is to the preferred lauryl amine of 1:1.08. alkylamine and octadecylamine, the preferred aniline of arylamine and para-totuidine.
Preferably, the diisocyanate is toluene di-isocyanate(TDI) or 4,4 '-diisocyanate diphenyl-methanes.
Preferably, the extreme-pressure antiwear compound additive for lubricating oil is by HVI350 base oil, chloralkane, dialkyl disulfides In mass ratio for carbaminate, dialkyl group phenol, ethylene-propylene copolymer, Acidic phosphates ammonium, 2% dimethicone kerosin Are as follows: (25-30): (25-30): (20-25): (0.1-0.3): (2.5-3.0): (0.2-0.3): made after (0.25-0.30) mixing At.
Preferably, it the preparation method of the low-noise lubricating grease: comprises the steps of:
A, organic amine is added in 1/2 base oil, is heated to organic amine and dissolves completely；
B, diisocyanate is added in remaining base oil again, is heated to dissolving；
C, then being added in organic amine oil to be sufficiently stirred by diisocyanate ester oil reacts organic amine completely with diisocyanate, this When temperature of charge be increased to 100-120 DEG C, at this temperature stirring and constant temperature 30 minutes, after being cooled to 30 DEG C be added vibration damping agent, Antiwear additive and extreme-pressure antiwear compound additive for lubricating oil are ground uniform on triple-roller mill.
Due to the application of the above technical scheme, compared with the prior art, the invention has the following advantages:
Low-noise lubricating grease of the present invention use polyester based on oil, the dual property with synthetic ester and PAO with compared with High lubricity has significant load-carrying ability and extreme pressure property with wear-resistant and extruding agent compatibility.Ester group's molecule has certain pole Property, therefore it has good affinity to metal.With PAO or mineral oil compatibility, there are a kind of unique property, i.e., low thickening effect It answers, there is good high shear performance resistant to high temperatures, thus be widely used in I. C. engine oil and gear oil；Applicable temperature range :- It is 35-+250 DEG C, short-term up to 300 DEG C；Low-noise lubricating grease of the present invention has excellent bass performance, excellent bearing Sound quality cover performance, excellent high temperature and cryogenic property, good mechanical stability, colloid stability and anti-oxidative stability, Excellent greasy property, Corrosion Protection and long service life, while can be biodegradable, good environmental protection；It is of the present invention Low-noise lubricating grease preparation method it is simple, it is practical.
Specific embodiment
Embodiment 1
Low-noise lubricating grease, including following weight percentage components:
The base oil is polyester；The thickening agent is organic amine and diisocyanate；The vibration damping agent is pentaerythritol fatty acid ester (PE1, 40 DEG C of viscosity 14.67mm2/s)；The antiwear additive is sulfide isobutene extreme pressure anti-wear additives；The organic amine is C12-C18 The mixture of alkylamine and C6-C8 arylamine, the mass ratio of the two are 10:1 to 1:16；It is preferred that 6.5:1 is excellent to 1:1.08. alkylamine Select lauryl amine and octadecylamine, the preferred aniline of arylamine and para-totuidine；The diisocyanate is toluene di-isocyanate(TDI)；The profit Lubricating oil extreme-pressure antiwear compound additive is by HVI350 base oil, chloralkane, dialkyl dithiocarbamate, dialkyl benzene Phenol, ethylene-propylene copolymer, Acidic phosphates ammonium, 2% dimethicone kerosin are in mass ratio are as follows: 26:28:24:0.15:2.8: It is made after 0.25:0.26 mixing.
The preparation method of the low-noise lubricating grease: it comprises the steps of:
A, organic amine is added in 1/2 base oil, is heated to organic amine and dissolves completely；
B, diisocyanate is added in remaining base oil again, is heated to dissolving；
C, then being added in organic amine oil to be sufficiently stirred by diisocyanate ester oil reacts organic amine completely with diisocyanate, this When temperature of charge be increased to 100-120 DEG C, at this temperature stirring and constant temperature 30 minutes, after being cooled to 30 DEG C be added vibration damping agent, Antiwear additive and extreme-pressure antiwear compound additive for lubricating oil are ground uniform on triple-roller mill.
Embodiment 2
Low-noise lubricating grease, including following weight percentage components:
The base oil is polyester；The thickening agent is organic amine and diisocyanate；The vibration damping agent is trimethylolpropane Ester (TMP1, 40 DEG C of viscosity 16.8mm2/s)；The antiwear additive is tricresyl phosphate extreme pressure anti-wear additives；The organic amine is C12- The mixture of C18 alkylamine and C6-C8 arylamine, the mass ratio of the two are 10:1 to 1:16；It is preferred that 6.5:1 is to 1:1.08. alkyl The preferred lauryl amine of amine and octadecylamine, the preferred aniline of arylamine and para-totuidine；The diisocyanate is 4,4 '-diisocyanate two Phenylmethane；The extreme-pressure antiwear compound additive for lubricating oil is by HVI350 base oil, chloralkane, dialkyl dithio amino first Hydrochlorate, dialkyl group phenol, ethylene-propylene copolymer, Acidic phosphates ammonium, 2% dimethicone kerosin are in mass ratio are as follows: 25: 25:20:0.3:3.0:0.3:0.30 being made after mixing.
The preparation method of the low-noise lubricating grease: it comprises the steps of:
A, organic amine is added in 1/2 base oil, is heated to organic amine and dissolves completely；
B, diisocyanate is added in remaining base oil again, is heated to dissolving；
C, then being added in organic amine oil to be sufficiently stirred by diisocyanate ester oil reacts organic amine completely with diisocyanate, this When temperature of charge be increased to 100-120 DEG C, at this temperature stirring and constant temperature 30 minutes, after being cooled to 30 DEG C be added vibration damping agent, Antiwear additive and extreme-pressure antiwear compound additive for lubricating oil are ground uniform on triple-roller mill.
Embodiment 3
Low-noise lubricating grease, including following weight percentage components:
The base oil is polyester；The thickening agent is organic amine and diisocyanate；
The vibration damping agent is pentaerythritol fatty acid ester (PE1, 40 DEG C of viscosity 14.67mm2/ s) and trihydroxymethylpropanyl ester (TMP1,40℃ Viscosity 16.8mm2/ s), 50% is respectively accounted for by weight percentage；
The antiwear additive is phosphorous di-n-butyl extreme pressure anti-wear additives；
The organic amine is the mixture of C12-C18 alkylamine Yu C6-C8 arylamine, and the mass ratio of the two is 10:1 to 1:16；It is excellent Select 6.5:1 to the preferred lauryl amine of 1:1.08. alkylamine and octadecylamine, the preferred aniline of arylamine and para-totuidine；
The diisocyanate is toluene di-isocyanate(TDI) and 4, and 4 '-diisocyanate diphenyl-methanes respectively account for by weight percentage 50%；
The extreme-pressure antiwear compound additive for lubricating oil is by HVI350 base oil, chloralkane, dialkyldithiocarbamacompositions Salt, dialkyl group phenol, ethylene-propylene copolymer, Acidic phosphates ammonium, 2% dimethicone kerosin are in mass ratio are as follows: 28:25: It is made after 20:0.1:3.0:0.3:0.25 mixing.
The preparation method of the low-noise lubricating grease: it comprises the steps of:
A, organic amine is added in 1/2 base oil, is heated to organic amine and dissolves completely；
B, diisocyanate is added in remaining base oil again, is heated to dissolving；
C, then being added in organic amine oil to be sufficiently stirred by diisocyanate ester oil reacts organic amine completely with diisocyanate, this When temperature of charge be increased to 100-120 DEG C, at this temperature stirring and constant temperature 30 minutes, after being cooled to 30 DEG C be added vibration damping agent, Antiwear additive and extreme-pressure antiwear compound additive for lubricating oil are ground uniform on triple-roller mill.
Embodiment 4
Low-noise lubricating grease, including following weight percentage components:
The base oil is polyester；The thickening agent is organic amine and diisocyanate；The vibration damping agent is pentaerythritol fatty acid ester (PE1, 40 DEG C of viscosity 14.67mm2/ s) and trihydroxymethylpropanyl ester (TMP1, 40 DEG C of viscosity 16.8mm2/ s), by weight percentage Respectively account for 50%；
The antiwear additive is sulfide isobutene extreme pressure anti-wear additives and tricresyl phosphate extreme pressure anti-wear additives and phosphorous di-n-butyl pole Antiwear additive is pressed, respectively accounts for one third by weight percentage；
The organic amine is the mixture of C12-C18 alkylamine Yu C6-C8 arylamine, and the mass ratio of the two is 10:1 to 1:16；It is excellent Select 6.5:1 to the preferred lauryl amine of 1:1.08. alkylamine and octadecylamine, the preferred aniline of arylamine and para-totuidine；
The diisocyanate is toluene di-isocyanate(TDI) and 4, and 4 '-diisocyanate diphenyl-methanes respectively account for by weight percentage 50%；
The extreme-pressure antiwear compound additive for lubricating oil is by HVI350 base oil, chloralkane, dialkyldithiocarbamacompositions Salt, dialkyl group phenol, ethylene-propylene copolymer, Acidic phosphates ammonium, 2% dimethicone kerosin are in mass ratio are as follows: 30:30: It is made after 25:0.2:2.5:0.3:0.25 mixing.
The preparation method of the low-noise lubricating grease: it comprises the steps of:
A, organic amine is added in 1/2 base oil, is heated to organic amine and dissolves completely；
B, diisocyanate is added in remaining base oil again, is heated to dissolving；
C, then being added in organic amine oil to be sufficiently stirred by diisocyanate ester oil reacts organic amine completely with diisocyanate, this When temperature of charge be increased to 100-120 DEG C, at this temperature stirring and constant temperature 30 minutes, after being cooled to 30 DEG C be added vibration damping agent, Antiwear additive and extreme-pressure antiwear compound additive for lubricating oil are ground uniform on triple-roller mill.
Testing result:
Due to the application of the above technical scheme, compared with the prior art, the invention has the following advantages:
Low-noise lubricating grease of the present invention use polyester based on oil, the dual property with synthetic ester and PAO with compared with High lubricity has significant load-carrying ability and extreme pressure property with wear-resistant and extruding agent compatibility.Ester group's molecule has certain pole Property, therefore it has good affinity to metal.With PAO or mineral oil compatibility, there are a kind of unique property, i.e., low thickening effect It answers, there is good high shear performance resistant to high temperatures, thus be widely used in I. C. engine oil and gear oil；Applicable temperature range :- It is 35-+250 DEG C, short-term up to 300 DEG C；Low-noise lubricating grease of the present invention has excellent bass performance, excellent bearing Sound quality cover performance, excellent high temperature and cryogenic property, good mechanical stability, colloid stability and anti-oxidative stability, Excellent greasy property, Corrosion Protection and long service life, while can be biodegradable, good environmental protection；It is of the present invention Low-noise lubricating grease preparation method it is simple, it is practical.
The above embodiments merely illustrate the technical concept and features of the present invention, and its object is to allow person skilled in the art Scholar can understand the contents of the present invention and be implemented, and it is not intended to limit the scope of the present invention, it is all according to the present invention Equivalent change or modification made by Spirit Essence, should be covered by the scope of protection of the present invention.

Claims (5)

1. low-noise lubricating grease, which is characterized in that including following weight percentage components:
Base oil 40-50%；
Thickening agent 30-35%；
Vibration damping agent 20-25%；
Antiwear additive 1-5%；
Extreme-pressure antiwear compound additive for lubricating oil 1-2%；
The base oil is polyester；
The thickening agent is organic amine and diisocyanate；
The vibration damping agent is pentaerythritol fatty acid ester (PE1, 40 DEG C of viscosity 14.67mm2/ s) or trihydroxymethylpropanyl ester (TMP1, 40 DEG C viscosity 16.8mm2/ s)；
The antiwear additive is sulfide isobutene extreme pressure anti-wear additives, tricresyl phosphate extreme pressure anti-wear additives or phosphorous di-n-butyl extreme pressure One of antiwear additive is a variety of.
2. low-noise lubricating grease according to claim 1, which is characterized in that the organic amine be C12-C18 alkylamine with The mixture of C6-C8 arylamine, the mass ratio of the two are 10:1 to 1:16；It is preferred that 6.5:1 is to the preferred lauryl amine of 1:1.08. alkylamine And octadecylamine, the preferred aniline of arylamine and para-totuidine.
3. low-noise lubricating grease according to claim 1, which is characterized in that the diisocyanate is toluene diisocynate Ester or 4,4 '-diisocyanate diphenyl-methanes.
4. low-noise lubricating grease according to claim 1, which is characterized in that the extreme-pressure antiwear compound additive for lubricating oil By HVI350 base oil, chloralkane, dialkyl dithiocarbamate, dialkyl group phenol, ethylene-propylene copolymer, dialkyl group phosphorus Sour ammonium, 2% dimethicone kerosin are in mass ratio are as follows: (25-30): (25-30): (20-25): (0.1-0.3): (2.5- 3.0): (0.2-0.3): being made after (0.25-0.30) mixing.
5. the preparation method of low-noise lubricating grease according to claim 1 or 2 or 3 or 4: comprising the steps of:
A, organic amine is added in 1/2 base oil, is heated to organic amine and dissolves completely；
B, diisocyanate is added in remaining base oil again, is heated to dissolving；
C, then being added in organic amine oil to be sufficiently stirred by diisocyanate ester oil reacts organic amine completely with diisocyanate, this When temperature of charge be increased to 100-120 DEG C, at this temperature stirring and constant temperature 30 minutes, after being cooled to 30 DEG C be added vibration damping agent, Antiwear additive and extreme-pressure antiwear compound additive for lubricating oil are ground uniform on triple-roller mill.
CN201811273974.1A 2018-10-30 2018-10-30 Low-noise lubricating grease and preparation method thereof Pending CN109370720A (en)

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CN112877114A (en) * 2020-12-31 2021-06-01 江苏全顺轨道交通装备科技有限公司 Preparation method of low-noise degradable composite solid rail edge lubricating rod

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Application publication date: 20190222