CN106497660A - A kind of polyureas slaine composite bearing lubricant composition and preparation method - Google Patents
A kind of polyureas slaine composite bearing lubricant composition and preparation method Download PDFInfo
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- CN106497660A CN106497660A CN201610877771.8A CN201610877771A CN106497660A CN 106497660 A CN106497660 A CN 106497660A CN 201610877771 A CN201610877771 A CN 201610877771A CN 106497660 A CN106497660 A CN 106497660A
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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
- C10M169/06—Mixtures of thickeners and additives
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- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M133/00—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing nitrogen
- C10M133/02—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing nitrogen having a carbon chain of less than 30 atoms
- C10M133/16—Amides; Imides
- C10M133/18—Amides; Imides of carbonic or haloformic acids
- C10M133/20—Ureas; Semicarbazides; Allophanates
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- 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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- 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
- C10M2207/026—Hydroxy compounds having hydroxy groups bound to carbon atoms of six-membered aromatic rings with tertiary alkyl groups
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- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
- C10M2215/02—Amines, e.g. polyalkylene polyamines; Quaternary amines
- C10M2215/06—Amines, e.g. polyalkylene polyamines; Quaternary amines having amino groups bound to carbon atoms of six-membered aromatic rings
- C10M2215/064—Di- and triaryl amines
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- 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
- C10M2215/10—Amides of carbonic or haloformic acids
- C10M2215/102—Ureas; Semicarbazides; Allophanates
- C10M2215/1026—Ureas; Semicarbazides; Allophanates used as thickening material
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- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- 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
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- C10M2223/00—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions
- C10M2223/02—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions having no phosphorus-to-carbon bonds
- C10M2223/049—Phosphite
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- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2290/00—Mixtures of base materials or thickeners or additives
- C10M2290/02—Mineral base oils; Mixtures of fractions
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- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2020/00—Specified physical or chemical properties or characteristics, i.e. function, of component of lubricating compositions
- C10N2020/01—Physico-chemical properties
- C10N2020/02—Viscosity; Viscosity index
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- C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
- C10N2030/02—Pour-point; Viscosity index
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- C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
- C10N2030/06—Oiliness; Film-strength; Anti-wear; Resistance to extreme pressure
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- C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
- C10N2030/08—Resistance to extreme temperature
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- C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
- C10N2030/10—Inhibition of oxidation, e.g. anti-oxidants
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- C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
- C10N2030/12—Inhibition of corrosion, e.g. anti-rust agents or anti-corrosives
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- C10N2040/00—Specified use or application for which the lubricating composition is intended
- C10N2040/02—Bearings
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- C10N2050/00—Form in which the lubricant is applied to the material being lubricated
- C10N2050/10—Semi-solids; greasy
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Abstract
The present invention relates to a kind of polyureas slaine composite bearing lubricant composition and preparation method.Component and percentage composition are：Two polyureas slaine thickening agents 10 20%；Base oil content 75% 85%；Additive 1.5 5%, including：(a) arylamine class and/or phenol antioxidant 0.5 4.0%；(b) phosphorus system antiwear additive 0.5 2%.Using polyureas as thickening agent, with preferable antioxygenic property, so as to ensure that longer lubrication interval；High-temperature behavior is projected simultaneously, applicable wider range；Due to the introducing of metallic element, the extreme pressure and antiwear behavior of polyurea grease is greatly improved, be applicable to the occasion higher to extreme pressure and antiwear behavior requirement.Compound with polyurea thickening agent by slaine, there is provided to use under a kind of high load environment, extreme pressure and antiwear behavior is excellent, and there is good high/low temperature mobility, rustless property, the polyurea grease product of antioxygenic property.
Description
Technical field
The invention belongs to technical field of lubricating grease, more particularly to a kind of polyureas slaine composite bearing lubricant composition
And preparation method.
Background technology
The moulding lubricant that grease is made up of thickening agent, base oil and additive, with semi-fluid bulk properties.Thickening agent
It is dispersed among base oil, the effect of additive is the correlated performance for improving grease.The yield and usage amount of grease is much
Be less than lubricating oil, but the species of grease and its industry and life in play a part of at all be no less than lubricating oil.First,
Grease is can apply under sealed environment, it is possible to reduce the consumption of lubricant, reduces maintenance cost；Grease has certain knot
Structure, not easily runs off, and can simplify the purpose of lubrication System Design；Grease is applicable to the operating condition of harshness, such as high temperature, low
Speed, under the operating mode of top load.
In mechanical industry, the typical part of most widely used grease is rolling bearing.At present, more than 80% axis of rolling
Hold and protection is lubricated using grease.With the continuous progress of science and technology, the harsher complexity of the operating mode that modern bearing is used is right
The requirement of grease is also improved constantly.Wherein as bearing grease, considered first is its low noise properties.Bearing grease
Low noise properties be to weigh the important factor of its credit rating, bearing noise increasingly causes people more to close
Note.Can bearing normally and quietly operate, and be largely fixed the stable operation of machine.Bearing grease is bearing
Quiet stable operating provides lubrication protection, and its ultimate principle is that lubricating oil film can separate steel ball and lasso raceway so as to carrying
The wearability of high bearing.
But for some rolling bearings, it is applied under the operating mode of low-speed heave-load, such as the industry such as metallurgy, wind-powered electricity generation, quietness
Can quality be not principal contradiction, and the extreme pressure and antiwear behavior of grease be ensure bearing long time running main because
Element.The extreme pressure and antiwear behavior of grease is excellent, can be under conditions of bearing load so that bearing obtains sufficient lubrication, effectively
The abrasion for preventing metal surface, scratch even sinter, so as to ensure the normal operation of bearing, improve mechanical efficiency, reduce energy
Source consumes.
Polyurea grease has excellent high temperature performance, antioxygenic property, but extreme pressure and antiwear behavior is relatively weak.Mesh
Before, also without the preferable polyureas bearing grease of a extreme pressure and antiwear behavior on domestic market.Therefore, a being applied to again is developed
The homemade goodses of the roll/slide bearing lubrication operated under environment are carried, its core technology is grasped, is necessary.
Content of the invention
It is an object of the invention to provide use under a kind of high load environment, extreme pressure and antiwear behavior is excellent, and has good
Good high/low temperature mobility, rustless property, a polyurea grease product of antioxygenic property.Reduction can be played to vibrate, wear-resistant,
The effect of protection.
The technology of the present invention is as follows：
A kind of polyureas slaine composite bearing lubricant composition, component and percentage composition as follows：
(1) two polyureas slaine thickening agent 10-20%；
(2) base oil content 75%-85%；
(3) additive 1.5-5%, including：(a) arylamine class and/or phenol antioxidant 0.5-4.0%；B () phosphorus system is wear-resistant
Agent 0.5-2%.
The two polyureas slaine thickening agent is generated by organic amine and diisocyanate, and slaine is alkali earth metal,
The species of wherein slaine is magnesium, calcium, the one kind in barium.
For being not less than 120, base oil pour point is not higher than -15 DEG C to the viscosity index (VI) of the base oil.
40 DEG C of viscosity of the base oil are 120-150mm2/ s, base oil is by naphthenic mineral oil and paraffin base mineral oil
Compounding mediation is obtained, and wherein the mass fraction of naphthenic mineral oil is in 40-70%.
The antioxidant is one kind of alkylated diphenylamine or diphenylamine derivatives or 2,6- di-t-butyl-p-cresol
Or two kinds, two kinds simultaneously use, can mixture in any proportion.
The antiwear additive is one or two of tricresyl alkaliine or di-n-butyl phosphite；Two kinds use simultaneously, can
Mixture in any proportion.
The method that the compositionss of the present invention prepare polyureas slaine composite bearing grease, step are as follows：
1) organic amine and diisocyanate base oil are dissolved after 60 DEG C, mixed material after dissolving completely is warming up to
75-80 DEG C carries out saponification, 1～1.5h of response time, and generation does not have two polyurea thickening agents of fibrous crystal structure and basis
The mixture of oil；
2) in step 1) add in the material that obtains Metal Salts carry out two polyureas slaine thickening agents generation anti-
Should, at 90～100 DEG C, the response time controls in 1～2h control temperature；
3) and then be warmed up to 180 DEG C of highest refining temperature, the control heating-up time in 1.5h～2h, period be warming up to 160 DEG C-
Antioxidant is added when 170 DEG C, obtains tubular fiber structure two polyureas slaine thickening agents staggeredly, treat thing after rising to 180 DEG C
Material is naturally cooling to less than 80 DEG C, adds antiwear additive, stirs；
4) by step 3) material that obtains carries out disperseing, deaerates, after detection noise level, finished product.
Grease result of performance test obtained in of the invention shows advantages below：
(1) using polyureas as thickening agent, with preferable antioxygenic property, so as to ensure that longer lubrication interval；
High-temperature behavior is projected simultaneously, applicable wider range；
(2) due to the introducing of metallic element, the extreme pressure and antiwear behavior of polyurea grease greatly improved, it is right to be applicable to
Extreme pressure and antiwear behavior requires higher occasion.
The present invention determines grease most respectively using the extreme pressure property of the method measure grease sample of ASTM D2596
Big sintering load (PD values) and maximum meet (PB values) without seizing.By 0,204 4 ball length of SH/T mill and the side of ASTM 5707
Method, determines the abrasion resistance of grease, and analysis condition is respectively SH/T 0204：75℃、392N、1200rpm、60min；ASTM
5707:200N, frequency of vibration 50Hz, amplitude 0.1mm, 2h.The present invention determines grease using the method for standard SH/T 0790
Antioxygenic property, analysis condition is：210 DEG C, argon is 35bar, oxygen flow 100ml/min.The present invention adopts standard GB/T
5018 methods determine the rustless property of grease, and analysis condition is：52 DEG C, relative humidity be 100% environment under, stand 48h.
Specific embodiment
Below by specific embodiment, the present invention is further elaborated.
40 DEG C of kinematic viscositys of compositionss base oil are preferably 120-150mm2/s；Viscosity Index is to be not less than 120；Thickening
Agent 10-20%；Thickening agent is that thickening agent is two polyureas slaines, slaine alkali earth metal；Base oil 75-85%；Add
Agent 1.5-5%；Including：(a) arylamine class and/or phenol antioxidant 0.5-4.0%；(b) phosphorus system antiwear additive 0.5-2%.
Although it is the example of a point that each embodiment following are listed, to the scope described in each claim being can
To reach same effect, not tightly it is limited to this condition.
Embodiment 1-6 and comparative example preparation method are as follows：
Embodiment 1 is initially charged the diisocyanate 54g in thickening agent in 445g pressure kettle oil, and pressure kettle oil is mineral oil,
During organic amine 40g is added to another part 431g pressure kettle oil, two reactors are respectively warming up to 60 DEG C, by two tanks after constant temperature 10min
Material is put into reactor, is heated with stirring to 75-80 DEG C, generates two polyureas for not having fibrous crystal structure after reacting 1～1.5h
Slaine thickening agent, then carries out the reaction of formation of two polyureas slaine thickening agents, adds dinonyl naphthalene sulfonate barium 10g, control
At 90～100 DEG C, the response time controls in 1～2h temperature, is slowly warmed up to 180 DEG C of highest refining temperature and generates tubular fiber knot
Structure two polyureas slaine thickening agents staggeredly, the control heating-up time between 1.5h～2h, when period is warming up to 160 DEG C -170 DEG C
Add antioxidant arylamine class alkylated diphenylamine 10g；After material is naturally cooling to below 80 DEG C, antiwear additive 10g phosphorous are added
Sour di-n-butyl, carries out post processing after stirring, and detects product noise level after being cooled to room temperature, and finished product is canned.
Embodiment 2 is initially charged the diisocyanate 91g in thickening agent in 411g pressure kettle oil, and pressure kettle oil is mineral oil,
During organic amine 53g is added to another part 410g pressure kettle oil, two reactors are respectively warming up to 60 DEG C, by two tanks after constant temperature 10min
Material is put into reactor, is heated with stirring to 75-80 DEG C, generates two polyureas for not having fibrous crystal structure after reacting 1～1.5h
Slaine thickening agent, then carries out the reaction of formation of two polyureas slaine thickening agents, adds dinonyl naphthalene sulfonate barium 10g, control
At 90～100 DEG C, the response time controls in 1～2h temperature, is slowly warmed up to 180 DEG C of highest refining temperature and generates tubular fiber knot
Structure two polyureas slaine thickening agents staggeredly, the control heating-up time between 1.5h～2h, when period is warming up to 160 DEG C -170 DEG C
Add antioxidant arylamine class alkylated diphenylamine 5g, 2,6- di-t-butyl-p-cresol 10g.Treat that material is naturally cooling to 80 DEG C
After below, antiwear additive 10g di-n-butyl phosphites are added, after stirring, post processing is carried out, after being cooled to room temperature, detect product
Noise level, finished product are canned.
Embodiment 3 is initially charged the diisocyanate 54g in thickening agent in 445g pressure kettle oil, and pressure kettle oil is mineral oil,
During organic amine 40g is added to another part 431g pressure kettle oil, two reactors are respectively warming up to 60 DEG C, by two tanks after constant temperature 10min
Material is put into reactor, is heated with stirring to 75-80 DEG C, generates two polyureas for not having fibrous crystal structure after reacting 1～1.5h
Slaine thickening agent, then carries out the reaction of formation of two polyureas slaine thickening agents, adds dinonylnaphthalene sulfonic acid sodium 10g, control
At 90～100 DEG C, the response time controls in 1～2h temperature, is slowly warmed up to 180 DEG C of highest refining temperature and generates tubular fiber knot
Structure two polyureas slaine thickening agents staggeredly, the control heating-up time between 1.5h～2h, when period is warming up to 160 DEG C -170 DEG C
Add antioxidant arylamine class alkylated diphenylamine 10g.After material is naturally cooling to below 80 DEG C, antiwear additive 10g front threes are added
Phenol phosphate ester, carries out post processing after stirring, and detects product noise level after being cooled to room temperature, and finished product is canned.
Embodiment 4 is initially charged the diisocyanate 92g in thickening agent in 416g pressure kettle oil, and pressure kettle oil is mineral oil,
During organic amine 54g is added to another part 410g pressure kettle oil, two reactors are respectively warming up to 60 DEG C, by two tanks after constant temperature 10min
Material is put into reactor, is heated with stirring to 75-80 DEG C, generates two polyureas for not having fibrous crystal structure after reacting 1～1.5h
Slaine thickening agent, then carries out the reaction of formation of two polyureas slaine thickening agents, adds dinonylnaphthalene sulfonic acid sodium 10g, control
At 90～100 DEG C, the response time controls in 1～2h temperature, is slowly warmed up to 180 DEG C of highest refining temperature and generates tubular fiber knot
Structure two polyureas slaine thickening agents staggeredly, the control heating-up time between 1.5h～2h, when period is warming up to 160 DEG C -170 DEG C
Add antioxidant arylamine class alkylated diphenylamine 5g, 2,6- di-t-butyl-p-cresol 5g.Treat that material is naturally cooling to 80 DEG C
After below, antiwear additive 8g tricresyl alkaliines are added, after stirring, post processing is carried out, after being cooled to room temperature, detect product noise
Level, finished product are canned.
Embodiment 5 is initially charged the diisocyanate 56g in thickening agent in 448g pressure kettle oil, and pressure kettle oil is mineral oil,
During organic amine 40g is added to another part 431g pressure kettle oil, two reactors are respectively warming up to 60 DEG C, by two tanks after constant temperature 10min
Material is put into reactor, is heated with stirring to 75-80 DEG C, generates two polyureas for not having fibrous crystal structure after reacting 1～1.5h
Slaine thickening agent, then carries out the reaction of formation of two polyureas slaine thickening agents, adds dinonylnaphthalene sulfonic acid calcium 10g, control
At 90～100 DEG C, the response time controls in 1～2h temperature, is slowly warmed up to 180 DEG C of highest refining temperature and generates tubular fiber knot
Structure two polyureas slaine thickening agents staggeredly, the control heating-up time between 1.5h～2h, when period is warming up to 160 DEG C -170 DEG C
Add antioxidant 2,6- di-t-butyl-p-cresol 10g.After material is naturally cooling to below 80 DEG C, antiwear additive 5g tri- is added
Cresol phosphate ester, carries out post processing after stirring, and detects product noise level after being cooled to room temperature, and finished product is canned.
Embodiment 6 is initially charged the diisocyanate 92g in thickening agent in 407g pressure kettle oil, and pressure kettle oil is mineral oil,
During organic amine 54g is added to another part 407g pressure kettle oil, two reactors are respectively warming up to 60 DEG C, by two tanks after constant temperature 10min
Material is put into reactor, is heated with stirring to 75-80 DEG C, generates two polyureas for not having fibrous crystal structure after reacting 1～1.5h
Slaine thickening agent, then carries out the reaction of formation of two polyureas slaine thickening agents, adds dinonylnaphthalene sulfonic acid calcium 10g, control
At 90～100 DEG C, the response time controls in 1～2h temperature, is slowly warmed up to 180 DEG C of highest refining temperature and generates tubular fiber knot
Structure two polyureas slaine thickening agents staggeredly, the control heating-up time between 1.5h～2h, when period is warming up to 160 DEG C -170 DEG C
Add antioxidant arylamine class alkylated diphenylamine 5g, 2,6- di-t-butyl-p-cresol 10g.Treat that material is naturally cooling to 80 DEG C
After below, antiwear additive 15g tricresyl alkaliines are added, after stirring, post processing is carried out, detection product is made an uproar after being cooled to room temperature
Sound level, finished product are canned.
Comparative example is initially charged the diisocyanate 54g in thickening agent in 460g pressure kettle oil, and pressure kettle oil is mineral oil, will
During organic amine 45g is added to another part 431g pressure kettle oil, two reactors are respectively warming up to 60 DEG C, by two tank things after constant temperature 10min
Material input is heated with stirring to 75-80 DEG C to reactor, and generating after reacting 1～1.5h does not have the two polyureas gold of fibrous crystal structure
Category salt thickening agent, is heated with stirring to 180 DEG C of highest refining temperature and generates the two polyureas slaines thickening staggeredly of tubular fiber structure
Agent, the control heating-up time, period added antioxidant arylamine class diphenylamines when being warming up to 160 DEG C -170 DEG C between 1.5h～2h
10g.Post processing is carried out after material is naturally cooling to below 80 DEG C, after being cooled to room temperature, product noise level, finished pot is detected
Dress.
Embodiment 1-6 constituent content is shown in Table 1.
1 embodiment 1-6 of table and comparative example constituent content (percentage ratio)
Embodiment 1-6 is shown in Table 2 with comparative example performance data.
2 embodiment 1-6 of table and comparative example performance data
The two polyureas slaine complex greases that the present invention be can be seen that by the Performance comparision of embodiment and comparative example have
Good non-oxidizability and extreme pressure anti-wear, ensure that and use, extreme pressure and antiwear behavior is excellent under grease high load environment
Good, and there is good high/low temperature mobility, rustless property, antioxygenic property.
Can draw the following conclusions from above case：(1) using polyureas as thickening agent, with preferable antioxygenic property,
So as to ensure that longer lubrication interval；High-temperature behavior is projected simultaneously, applicable wider range；(2) due to metallic element
Introducing, greatly improved the extreme pressure and antiwear behavior of polyurea grease, be applicable to higher to extreme pressure and antiwear behavior requirement
Occasion.(3) due to adding preferred amine or phenolic antioxidant so that the grease has longer oxidation induction period, energy
Enough ensure the long life of grease and bearing.
Claims (7)
1. a kind of polyureas slaine composite bearing lubricant composition, is characterized in that component and percentage composition are as follows：
(1) two polyureas slaine thickening agent 10-20%；
(2) base oil content 75%-85%；
(3) additive 1.5-5%, including：(a) arylamine class and/or phenol antioxidant 0.5-4.0%；(b) phosphorus system antiwear additive
0.5-2%.
2. compositionss as claimed in claim 1, is characterized in that two polyureas slaine thickening agents by organic amine and diisocyanate
Generate, slaine is alkali earth metal, wherein the species of slaine be magnesium, calcium, the one kind in barium.
3. compositionss as claimed in claim 1, is characterized in that the viscosity index (VI) of the base oil for being not less than 120, base oil
Not higher than -15 DEG C of pour point.
4. compositionss as claimed in claim 1, is characterized in that 40 DEG C of viscosity of base oil are 120-150mm2/ s, base oil by
Naphthenic mineral oil and paraffin base mineral oil compounding mediation are obtained, and wherein the mass fraction of naphthenic mineral oil is in 40-70%.
5. compositionss as claimed in claim 1, is characterized in that antioxidant is alkylated diphenylamine or diphenylamine derivatives or 2,
6- di-t-butyl-p-cresols one or two, two kinds simultaneously use, can mixture in any proportion.
6. compositionss as claimed in claim 1, is characterized in that antiwear additive is tricresyl alkaliine or di-n-butyl phosphite
One or two；Two kinds simultaneously use, can mixture in any proportion.
7. the method that the compositionss of claim 1 or 2 prepare polyureas slaine composite bearing grease, it is characterised in that step is such as
Under：
1) organic amine and diisocyanate base oil are dissolved after 60 DEG C, mixed material after dissolving completely is warming up to 75-80
DEG C carry out saponification, 1～1.5h of response time, generating does not have the mixed of two polyurea thickening agents of fibrous crystal structure and base oil
Compound；
2) in step 1) add Metal Salts in the material that obtains and carry out the reaction of formation of two polyureas slaine thickening agents, control
At 90～100 DEG C, the response time controls in 1～2h temperature processed；
3) 180 DEG C of highest refining temperature is warmed up to and then by material, and the control heating-up time, period was warming up to 160 in 1.5h～2h
Antioxidant is added when DEG C -170 DEG C, obtains tubular fiber structure two polyureas slaine thickening agents staggeredly, treat after rising to 180 DEG C
Material is naturally cooling to less than 80 DEG C, adds antiwear additive, stirs；
4) by step 3) material that obtains carries out disperseing, deaerates, after detection noise level, finished product.
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| CN201610877771.8A CN106497660A (en) | 2016-10-05 | 2016-10-05 | A kind of polyureas slaine composite bearing lubricant composition and preparation method |
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| CN201610877771.8A CN106497660A (en) | 2016-10-05 | 2016-10-05 | A kind of polyureas slaine composite bearing lubricant composition and preparation method |
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Cited By (1)
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|---|---|---|---|---|
| CN109913295A (en) * | 2019-03-26 | 2019-06-21 | 常熟理工学院 | A kind of compound four polyurea grease of potassium base and preparation method thereof |
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