CN108715768A - A kind of long-life high temperature bearing Perfluoropolyether lubricating grease and its preparation method and application - Google Patents
A kind of long-life high temperature bearing Perfluoropolyether lubricating grease and its preparation method and application Download PDFInfo
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- CN108715768A CN108715768A CN201810679130.0A CN201810679130A CN108715768A CN 108715768 A CN108715768 A CN 108715768A CN 201810679130 A CN201810679130 A CN 201810679130A CN 108715768 A CN108715768 A CN 108715768A
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- Prior art keywords
- perfluoropolyether
- lubricating grease
- long
- high temperature
- bearing
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- 239000010702 perfluoropolyether Substances 0.000 title claims abstract description 43
- 239000004519 grease Substances 0.000 title claims abstract description 40
- 230000001050 lubricating effect Effects 0.000 title claims abstract description 37
- 238000002360 preparation method Methods 0.000 title claims abstract description 20
- 239000002562 thickening agent Substances 0.000 claims abstract description 16
- 239000000654 additive Substances 0.000 claims abstract description 11
- 230000000996 additive effect Effects 0.000 claims abstract description 11
- 238000005461 lubrication Methods 0.000 claims abstract description 10
- IOJUPLGTWVMSFF-UHFFFAOYSA-N benzothiazole Chemical compound C1=CC=C2SC=NC2=C1 IOJUPLGTWVMSFF-UHFFFAOYSA-N 0.000 claims abstract description 9
- LPXPTNMVRIOKMN-UHFFFAOYSA-M sodium nitrite Chemical compound [Na+].[O-]N=O LPXPTNMVRIOKMN-UHFFFAOYSA-M 0.000 claims abstract description 8
- 239000000126 substance Substances 0.000 claims abstract description 7
- 241000158728 Meliaceae Species 0.000 claims abstract description 6
- 229910052788 barium Inorganic materials 0.000 claims abstract description 6
- DSAJWYNOEDNPEQ-UHFFFAOYSA-N barium atom Chemical compound [Ba] DSAJWYNOEDNPEQ-UHFFFAOYSA-N 0.000 claims abstract description 6
- CWQXQMHSOZUFJS-UHFFFAOYSA-N molybdenum disulfide Chemical group S=[Mo]=S CWQXQMHSOZUFJS-UHFFFAOYSA-N 0.000 claims abstract description 6
- 229910052982 molybdenum disulfide Inorganic materials 0.000 claims abstract description 6
- 235000010288 sodium nitrite Nutrition 0.000 claims abstract description 4
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 claims abstract description 4
- 238000002604 ultrasonography Methods 0.000 claims description 8
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 6
- 238000000227 grinding Methods 0.000 claims description 6
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 6
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 3
- 239000000440 bentonite Substances 0.000 claims description 3
- 229910000278 bentonite Inorganic materials 0.000 claims description 3
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 claims description 3
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 3
- -1 polytetrafluoroethylene Polymers 0.000 claims description 3
- 229910002012 Aerosil® Inorganic materials 0.000 claims description 2
- 238000003801 milling Methods 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims description 2
- 229910052799 carbon Inorganic materials 0.000 abstract description 7
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract description 6
- 238000009826 distribution Methods 0.000 abstract description 6
- 230000007774 longterm Effects 0.000 abstract description 6
- 238000004939 coking Methods 0.000 abstract description 5
- 238000001704 evaporation Methods 0.000 abstract description 2
- 230000008020 evaporation Effects 0.000 abstract description 2
- 239000003921 oil Substances 0.000 description 10
- 238000012360 testing method Methods 0.000 description 5
- 230000003647 oxidation Effects 0.000 description 4
- 238000007254 oxidation reaction Methods 0.000 description 4
- 238000012805 post-processing Methods 0.000 description 4
- 238000003756 stirring Methods 0.000 description 4
- 238000007872 degassing Methods 0.000 description 3
- 238000010792 warming Methods 0.000 description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000010696 ester oil Substances 0.000 description 2
- 238000011068 loading method Methods 0.000 description 2
- 239000000314 lubricant Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 150000003871 sulfonates Chemical class 0.000 description 2
- 230000002194 synthesizing effect Effects 0.000 description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 239000002199 base oil Substances 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000004043 dyeing Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- XUCNUKMRBVNAPB-UHFFFAOYSA-N fluoroethene Chemical compound FC=C XUCNUKMRBVNAPB-UHFFFAOYSA-N 0.000 description 1
- 238000009998 heat setting Methods 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002480 mineral oil Substances 0.000 description 1
- 235000010446 mineral oil Nutrition 0.000 description 1
- 238000007645 offset printing Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 229920002545 silicone oil Polymers 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000003442 weekly effect Effects 0.000 description 1
Classifications
-
- 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
- C10M161/00—Lubricating compositions characterised by the additive being a mixture of a macromolecular compound and a non-macromolecular compound, each of these compounds being essential
-
- 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
- C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
- C10M2201/06—Metal compounds
- C10M2201/062—Oxides; Hydroxides; Carbonates or bicarbonates
-
- 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
- C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
- C10M2201/06—Metal compounds
- C10M2201/065—Sulfides; Selenides; Tellurides
- C10M2201/066—Molybdenum sulfide
-
- 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
- C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
- C10M2201/10—Compounds containing silicon
- C10M2201/102—Silicates
- C10M2201/103—Clays; Mica; Zeolites
- C10M2201/1036—Clays; Mica; Zeolites used as thickening agents
-
- 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
- C10M2213/00—Organic macromolecular compounds containing halogen as ingredients in lubricant compositions
- C10M2213/06—Perfluoro polymers
-
- 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
- C10M2213/00—Organic macromolecular compounds containing halogen as ingredients in lubricant compositions
- C10M2213/06—Perfluoro polymers
- C10M2213/062—Polytetrafluoroethylene [PTFE]
- C10M2213/0626—Polytetrafluoroethylene [PTFE] used as thickening agents
-
- 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
- C10M2219/044—Sulfonic acids, Derivatives thereof, e.g. neutral 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
- C10M2219/00—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions
- C10M2219/10—Heterocyclic compounds containing sulfur, selenium or tellurium compounds in the ring
- C10M2219/104—Heterocyclic compounds containing sulfur, selenium or tellurium compounds in the ring containing sulfur and carbon with nitrogen or oxygen in the ring
-
- 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
- C10N2010/00—Metal present as such or in compounds
- C10N2010/04—Groups 2 or 12
-
- 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
- C10N2030/10—Inhibition of oxidation, e.g. anti-oxidants
-
- 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
- C10N2040/02—Bearings
-
- 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
- C10N2050/00—Form in which the lubricant is applied to the material being lubricated
- C10N2050/10—Form in which the lubricant is applied to the material being lubricated semi-solid; greasy
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Lubricants (AREA)
Abstract
A kind of long-life high temperature bearing Perfluoropolyether lubricating grease of present invention offer and its preparation method and application, long-life high temperature bearing Perfluoropolyether lubricating grease provided by the invention includes the component of following mass percent：Perfluoropolyether 60-80%, thickening agent 20-40%, additive 0.01-0.5%；The chemical formula of the perfluoropolyether is CF3‑O‑(CF2‑CF2‑O)m‑(CF2‑O)n‑CF3, wherein m and n are independently selected from the integer between 1-500；The additive is molybdenum disulfide, sodium nitrite, barium mahogany sulfonate and the one or more combination of benzothiazole.The Perfluoropolyether lubricating grease of the present invention solves that coking carbon distribution of the existing product for occurring under the worst hot case of bearing, evaporation is too fast and can not be provided for a long term the technical problems such as lubrication protection；In addition, the Perfluoropolyether lubricating grease preparation process of the present invention is simple, and can be made under relatively low temperature condition.
Description
Technical field
The present invention relates to lubriation material technical fields, more particularly to high-temperature bearing lubrication technical field.
Background technology
With the raising of industrial level, more and more lubricant housings operating temperature requirements improve, the requirement to lubricating grease
It steps up.High temperature bearing grease is mainly used for dyeing heat setting machine bearing, offset printing machine bearing, garbage power are burnt
Burn stove bearing, bearing of blower etc..Nowadays the base oil used in high temperature bearing grease on the market is largely mineral
Oil, silicone oil, PAO and synthesizing ester oil.This kind of lubricating grease has following defect：Easily point oil softens, is volatile, being also easy to produce at high temperature
Coking carbon distribution, extreme pressure anti-wear are low, bearing capacity is poor.The wear extent of bearing often has in the state of unlubricated or few lubrication
Lubricate several times to tens times of bearing.Abrasion increases, and temperature will also improve very big, high-temperature bearing more fragile in this way.Monthly very
It is more serious bearing to be caused to be welded to just needing replacing bearing weekly, working efficiency is influenced, security risk is increased.Therefore, one
As high temperature bearing grease cannot fully meet the requirement of the long-acting lubrication of equipment bearing.
CN101921653B discloses a kind of synthetic high-temperature lubricating grease and preparation method thereof.The lubricating grease is compound with high base number
Sulfoacid calcium is thickening agent, and oil is prepared based on high viscosity synthetic oil.The standby lubricating grease of the patent system is in steel mill, cement
There are the uses of the production site of high temperature, heavy load, a large amount of cooling waters for factory, power plant etc..Although some effects can be obtained, make
Process is relatively complicated, and influence factor is complicated, be easy to cause unstable product quality, is also easy to produce carbon distribution and service life does not have pole
It is big to be promoted.
CN101445759B discloses a kind of ultra high temperature lubricating grease and production method.The lubricating grease is using synthesizing ester oil as base
Plinth oil, silicon dioxide powder are that thickening agent and high temperature additive are prepared.Although achieving good breakthrough, chemical stabilization
Property and service life etc. need to be improved.
Invention content
In view of this, the present invention provides a kind of long-life high temperature bearing Perfluoropolyether lubricating grease and preparation method thereof and answers
With, Perfluoropolyether lubricating grease of the invention solve coking carbon distribution of the existing product for occurring under the worst hot case of bearing,
It evaporates too fast and the technical problems such as lubrication protection can not be provided for a long term；In addition, the Perfluoropolyether lubricating grease preparation process of the present invention
Simply, it and can be made under relatively low temperature condition.
The present invention is to reach its purpose, and the technical solution of use is as follows：
First aspect present invention provides a kind of long-life high temperature bearing Perfluoropolyether lubricating grease, including following mass percent
Component (the sum of each component be 100%)：
Perfluoropolyether 60-80%, thickening agent 20-40%, additive 0.01-0.5%；
The chemical formula of the perfluoropolyether is CF3-O-(CF2-CF2-O)m-(CF2-O)n-CF3, wherein m and n are independently
The integer between the 1-500；
The additive is one or more groups in molybdenum disulfide, sodium nitrite, barium mahogany sulfonate and benzothiazole
It closes.
In the Perfluoropolyether lubricating grease of the present invention, use chemical formula for CF3-O-(CF2-CF2-O)m-(CF2-O)n-CF3's
Perfluoropolyether, and with one or more for additive in molybdenum disulfide, sodium nitrite, barium mahogany sulfonate and benzothiazole, together
When combine according to specific proportioning with thickening agent, the product of acquisition also has with excellent viscosity-temperature characteristics and high-temperature stability
There are excellent extreme pressure anti-wear and an oxidation stability, product has excellent resistance impact load and vibrational loading performance and excellent
Rustless property (extreme pressure anti-wear includes resisting impact load and vibrational loading performance), high-temperature bearing can be met in high load capacity height
Application requirement under temperature, makes it provide the effective protection of long-life for bearing under complex environment.
Preferably, the molecular weight of the perfluoropolyether is between 15000-30000g/mol, further preferably 20000-
25000g/mol。
Preferably, the thickening agent is a kind of or several in polytetrafluoroethylene (PTFE), aerosil, bentonite, calcium carbonate
Kind, preferably use these types of substance as thickening agent in the formula system of the present invention, with other specific components institutes of formula system
Obtained Perfluoropolyether lubricating grease is allocated, there is superior greasy property under the worst hot case for a long time more than 200 DEG C.
Second aspect of the present invention provides the preparation method of long-life high temperature bearing Perfluoropolyether lubricating grease described above, packet
Include following steps：
The additive is added in perfluoropolyether, is stirred for 40-80 DEG C in temperature, it is super in 60-70 DEG C of temperature later
Sound disperses；Then the thickening agent is added, is stirred for 50-70 DEG C in temperature；Finally mixture is ground.
The Perfluoropolyether lubricating grease of the present invention, not only ingredient is simple, and preparation process is simple, prepares required temperature condition
It is low.It is stirred by 40-80 DEG C in temperature, later in 60-70 DEG C of ultrasonic disperse of temperature；Thickening agent is added, then in temperature 50-
70 DEG C are stirred, and can fully merge each component, can especially additive be made to be dispersed in other components, make each group
Get to be combined with each other well, ensures properties of product.
The ultrasound carries out in water bath sonicator as a preferred implementation manner,.
As a preferred implementation manner, in preparation process, it is stirred 1-2h at 40-80 DEG C, in 60-70 DEG C of ultrasound
Disperse 1-2h, 1-2h is stirred at 50-70 DEG C.
The grinding carries out in three-roll grinder as a preferred implementation manner, and milling time is preferably 1-3h.
Long-life high temperature bearing Perfluoropolyether lubricating grease provided by the invention in bearing lubrication especially suitable for applying, especially
It is used in the bearing under worst hot case.
Technical solution provided by the invention has the advantages that：
Perfluoropolyether lubricating grease element provided by the invention is simple, and preparation process is simple, and preparation condition is mild；It should
Product has the characteristics such as good viscosity-temperature characteristics, extreme pressure anti-wear, oxidation stability and high-temperature stability, disclosure satisfy that high temperature axis
The application requirement under high load capacity high temperature is held, being effectively protected for long-life can be provided for bearing under complex environment, had
Effect solves existing product and occurs coking carbon distribution in use under worst hot case for bearing, evaporates too fast and can not be provided for a long term
The technical problems such as lubrication protection.
Lubricating grease prepared by the present invention has long-life and excellent high temperature resistance, can be under worst hot case to bearing
Long-term efficiently protection is provided, long-term lubrication protection can be played the role of to bearing under -40~350 DEG C of working environment.
Specific implementation mode
For a better understanding of the technical solution of the present invention, with reference to the embodiment content that the present invention is further explained,
But present disclosure is not limited only to following embodiment.Following embodiment is raw materials used to be commercially available.
Embodiment 1
5g molybdenum disulfide (commercially available to be purchased from pioneer Mu Ye Co., Ltds high pure alcohol) is taken to be added to 600g at 50 DEG C
Perfluoropolyether (can be purchased from Su Wei Solvay perfluoro polyether oilsM, molecular formula CF3-O-(CF2-CF2-O)m-
(CF2-O)n-CF3, m=150, n=52) in, 1h is stirred, ultrasound 1h in 60 DEG C of water bath sonicators is warming up to.70 DEG C add
400g polytetrafluoroethylene (PTFE) thickening agents stir 1h, and grind 1h on three-roll grinder, are then carried out to the lubricating grease after grinding true
Sky degassing post-processing, is packed.
Embodiment 2
Take 5g barium mahogany sulfonates are (commercially available to be purchased from Jinzhou Sheng great Chemical Companies T701 barium mahogany sulfonates) to add at 60 DEG C
Entering to 1.4kg perfluoropolyether (can be purchased from Su Wei Solvay perfluoro polyether oilsM, molecular formula CF3-O-(CF2-
CF2-O)m-(CF2-O)n-CF3, m=180, n=76) in, 1.5h is stirred, ultrasound 1.5h in 60 DEG C of water bath sonicators, 60 DEG C add again
Enter calcium carbonate thickening agent 600g, stir 1h, and grind 1.5h on three-roll grinder, then the lubricating grease after grinding is carried out true
Sky degassing post-processing, is packed.
Embodiment 3
15g molybdenum disulfide (commercially available to be purchased from pioneer Mu Ye Co., Ltds high pure alcohol) is taken to be added at 40 DEG C
2.1kg perfluoro polyether oils (can be purchased from Su Wei Solvay perfluoro polyether oilsM, molecular formula CF3-O-(CF2-
CF2-O)m-(CF2-O)n-CF3, m=200, n=55) in, 2h is stirred, is warming up to 60 DEG C and the ultrasound 1.5h in water bath sonicator,
70 DEG C add bentonite thickening agent 900g, 1.5h are stirred, and 2.5h is ground on three-roll grinder, then to the profit after grinding
Consistent lubricant carries out vacuum outgas post-processing, is packed.
Embodiment 4
16g benzothiazoles (commercially available to be purchased from the auspicious Chemical Co., Ltd.s of Shanghai Qi) are taken to be added to 3.2kg perfluoropolyether at 40 DEG C
(Su Wei Solvay perfluoro polyether oils can be purchased fromM, molecular formula CF3-O-(CF2-CF2-O)m-(CF2-O)n-
CF3, m=160, n=25) in, stir 1h, at 60 DEG C in water bath sonicator ultrasound 0.5h, be warming up to 70 DEG C and add poly- four
Vinyl fluoride thickening agent 800g stirs 1.5h, and grinds 2h on three-roll grinder, then carries out vacuum to the lubricating grease after grinding
Degassing post-processing, is packed.
The Perfluoropolyether lubricating grease that embodiment is prepared is tested for the property, test result is as follows shown in table：
The performance test of lubricating grease standard with the following method：
The cone penetration test reference standard GB/T 269 of lubricating grease；
Grease dropping point test reference standard GB/T 3498；
Burn section Road test reference standard SH/T 0202；
Pressure point oil test reference standard SH/T 392；
Evaporativity reference standard SH/T 0337；
Corrode reference standard GB/T 7326；
Oxidation stability reference standard SH/T 0325.
The experimental results showed that, Perfluoropolyether lubricating grease element provided by the invention is simple, and preparation process by above
Simply, preparation condition is mild；And product obtained has good viscosity-temperature characteristics, extreme pressure anti-wear, oxidation stability and high temperature
The characteristics such as stability disclosure satisfy that application requirement of the high-temperature bearing under high load capacity high temperature, can be axis under complex environment
It holds and being effectively protected for long-life is provided, can effectively solve existing product and coking occur in use under worst hot case for bearing
Carbon distribution, evaporation is too fast and can not be provided for a long term the technical problems such as lubrication protection.
It will be understood by those skilled in the art that under the introduction of this specification, the present invention can be made some modifications or
Adjustment.These modifications or adjustment should also be as within the scope of the claims in the present invention.
Claims (8)
1. a kind of long-life high temperature bearing Perfluoropolyether lubricating grease, which is characterized in that include the component of following mass percent：
Perfluoropolyether 60-80%, thickening agent 20-40%, additive 0.01-0.5%；
The chemical formula of the perfluoropolyether is CF3-O-(CF2-CF2-O)m-(CF2-O)n-CF3, wherein m and n are independently selected from
Integer between 1-500；
The additive is one or more combinations in molybdenum disulfide, sodium nitrite, barium mahogany sulfonate and benzothiazole.
2. long-life high temperature bearing Perfluoropolyether lubricating grease according to claim 1, which is characterized in that the perfluoropolyether
Molecular weight between 15000-30000g/mol, preferably 20000-25000g/mol.
3. long-life high temperature bearing Perfluoropolyether lubricating grease according to claim 1 or 2, which is characterized in that the thickening
Agent is one or more of in polytetrafluoroethylene (PTFE), aerosil, bentonite, calcium carbonate.
4. the preparation method of claim 1-3 any one of them long-life high temperature bearing Perfluoropolyether lubricating greases, feature exist
In including the following steps：
The additive is added in perfluoropolyether, is stirred for 40-80 DEG C in temperature, later in 60-70 DEG C of ultrasound of temperature point
It dissipates；Then the thickening agent is added, is stirred for 50-70 DEG C in temperature；Finally mixture is ground.
5. preparation method according to claim 4, which is characterized in that the ultrasound carries out in water bath sonicator.
6. preparation method according to claim 4 or 5, which is characterized in that in preparation process, stirred at 40-80 DEG C mixed
It closes 1-2h and is stirred 1-2h at 50-70 DEG C in 60-70 DEG C of ultrasonic disperse 1-2h.
7. according to claim 4-6 any one of them preparation methods, which is characterized in that it is described grinding in three-roll grinder into
Row, milling time is preferably 1-3h.
8. any one of claim 1-3 any one of them long-life high temperature bearing Perfluoropolyether lubricating grease or claim 4-7
Long-life high temperature bearing Perfluoropolyether lubricating grease made from the preparation method is applied in bearing lubrication.
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| CN201810679130.0A CN108715768A (en) | 2018-06-27 | 2018-06-27 | A kind of long-life high temperature bearing Perfluoropolyether lubricating grease and its preparation method and application |
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Cited By (5)
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| CN110791357A (en) * | 2019-08-16 | 2020-02-14 | 中国石油化工股份有限公司 | Anti-radiation lubricating grease and preparation method thereof |
| CN111635803A (en) * | 2020-06-29 | 2020-09-08 | 中国石油化工股份有限公司 | Long-life fluorine-containing lubricating grease for bearings and preparation method thereof |
| CN114507140A (en) * | 2021-12-31 | 2022-05-17 | 山东华夏神舟新材料有限公司 | Fluorinated friction modifier for fluorinated grease and preparation method and application thereof |
| CN114921279A (en) * | 2021-02-12 | 2022-08-19 | Nok克鲁勃株式会社 | Grease composition |
| CN115710524A (en) * | 2021-08-23 | 2023-02-24 | 中国石油化工股份有限公司 | Preparation method of extreme pressure anti-wear perfluoropolyether lubricating grease and extreme pressure anti-wear perfluoropolyether lubricating grease |
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| CN115710524B (en) * | 2021-08-23 | 2023-09-19 | 中国石油化工股份有限公司 | Method for preparing extreme pressure antiwear perfluoropolyether grease and extreme pressure antiwear perfluoropolyether grease |
| CN114507140A (en) * | 2021-12-31 | 2022-05-17 | 山东华夏神舟新材料有限公司 | Fluorinated friction modifier for fluorinated grease and preparation method and application thereof |
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Application publication date: 20181030 |