CN106687570A - Grease compositions - Google Patents

Grease compositions Download PDF

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Publication number
CN106687570A
CN106687570A CN201580049460.6A CN201580049460A CN106687570A CN 106687570 A CN106687570 A CN 106687570A CN 201580049460 A CN201580049460 A CN 201580049460A CN 106687570 A CN106687570 A CN 106687570A
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CN
China
Prior art keywords
acid
lubricant composition
acid amides
oxide particle
metal oxide
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201580049460.6A
Other languages
Chinese (zh)
Inventor
弗兰克·费德拉尔斯
厄斯塔蒂翁斯·约安尼季斯
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SKF AB
Original Assignee
SKF AB
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from GBGB1419442.7A external-priority patent/GB201419442D0/en
Priority claimed from GBGB1419445.0A external-priority patent/GB201419445D0/en
Priority claimed from GBGB1500985.5A external-priority patent/GB201500985D0/en
Application filed by SKF AB filed Critical SKF AB
Publication of CN106687570A publication Critical patent/CN106687570A/en
Pending legal-status Critical Current

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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
    • 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
    • C10M169/02—Mixtures of base-materials and thickeners
    • 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
    • C10M101/00—Lubricating compositions characterised by the base-material being a mineral or fatty oil
    • 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
    • C10M113/00—Lubricating compositions characterised by the thickening agent being an inorganic material
    • C10M113/16—Inorganic material treated with organic compounds, e.g. coated
    • 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
    • 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
    • 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
    • C10M2201/0626—Oxides; Hydroxides; Carbonates or bicarbonates 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
    • C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
    • C10M2201/10—Compounds containing silicon
    • C10M2201/105—Silica
    • C10M2201/1056—Silica 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
    • C10M2203/00—Organic non-macromolecular hydrocarbon compounds and hydrocarbon fractions as ingredients in lubricant compositions
    • C10M2203/003—Organic non-macromolecular hydrocarbon compounds and hydrocarbon fractions as ingredients in lubricant compositions 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
    • C10M2203/00—Organic non-macromolecular hydrocarbon compounds and hydrocarbon fractions as ingredients in lubricant compositions
    • C10M2203/10—Petroleum or coal fractions, e.g. tars, solvents, bitumen
    • C10M2203/102—Aliphatic fractions
    • C10M2203/1025—Aliphatic fractions used as base 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
    • 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
    • C10M2205/028—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing acyclic monomers containing aliphatic monomers having more than four carbon atoms
    • C10M2205/0285—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing acyclic monomers containing aliphatic monomers having more than four carbon atoms 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
    • C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
    • C10M2207/10—Carboxylix acids; Neutral salts thereof
    • C10M2207/12—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms
    • C10M2207/121—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of seven or less carbon atoms
    • C10M2207/123—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of seven or less carbon atoms polycarboxylic
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
    • C10M2207/10—Carboxylix acids; Neutral salts thereof
    • C10M2207/12—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms
    • C10M2207/125—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of eight up to twenty-nine carbon atoms, i.e. fatty acids
    • C10M2207/126—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of eight up to twenty-nine carbon atoms, i.e. fatty acids monocarboxylic
    • C10M2207/1265—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of eight up to twenty-nine carbon atoms, i.e. fatty acids monocarboxylic used as thickening agent
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
    • C10M2207/10—Carboxylix acids; Neutral salts thereof
    • C10M2207/12—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms
    • C10M2207/125—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of eight up to twenty-nine carbon atoms, i.e. fatty acids
    • C10M2207/128—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of eight up to twenty-nine carbon atoms, i.e. fatty acids containing hydroxy groups; Ethers thereof
    • C10M2207/1285—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of eight up to twenty-nine carbon atoms, i.e. fatty acids containing hydroxy groups; Ethers thereof 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
    • C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
    • C10M2215/08—Amides
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
    • C10M2215/08—Amides
    • C10M2215/082—Amides containing hydroxyl groups; Alkoxylated derivatives
    • 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
    • C10M2215/22—Heterocyclic nitrogen compounds
    • C10M2215/223—Five-membered rings containing nitrogen and carbon only
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
    • C10M2215/28—Amides; Imides
    • 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
    • C10M2215/30—Heterocyclic 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
    • C10M2219/00—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions
    • C10M2219/08—Thiols; Sulfides; Polysulfides; Mercaptals
    • C10M2219/082—Thiols; Sulfides; Polysulfides; Mercaptals containing sulfur atoms 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
    • 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
    • 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
    • C10M2223/047—Thioderivatives not containing metallic elements
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2227/00—Organic non-macromolecular compounds containing atoms of elements not provided for in groups C10M2203/00, C10M2207/00, C10M2211/00, C10M2215/00, C10M2219/00 or C10M2223/00 as ingredients in lubricant compositions
    • C10M2227/006—Organic non-macromolecular compounds containing atoms of elements not provided for in groups C10M2203/00, C10M2207/00, C10M2211/00, C10M2215/00, C10M2219/00 or C10M2223/00 as ingredients in lubricant compositions 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
    • C10M2227/00—Organic non-macromolecular compounds containing atoms of elements not provided for in groups C10M2203/00, C10M2207/00, C10M2211/00, C10M2215/00, C10M2219/00 or C10M2223/00 as ingredients in lubricant compositions
    • C10M2227/06—Organic compounds derived from inorganic acids or metal salts
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    • 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
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    • 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
    • C10N2020/00—Specified physical or chemical properties or characteristics, i.e. function, of component of lubricating compositions
    • C10N2020/01—Physico-chemical properties
    • C10N2020/055—Particles related characteristics
    • C10N2020/06—Particles of special shape or size
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
    • C10N2030/06—Oiliness; Film-strength; Anti-wear; Resistance to extreme pressure
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    • 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
    • C10N2040/00—Specified use or application for which the lubricating composition is intended
    • C10N2040/04—Oil-bath; Gear-boxes; Automatic transmissions; Traction drives
    • 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—Semi-solids; greasy

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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)
  • Inorganic Chemistry (AREA)
  • Lubricants (AREA)

Abstract

The invention relates to a grease composition comprising a base oil and a thickener which comprises hydrophilic metal oxide particles and one or more amides which contain one or more unsaturated C-C bonds and/or at least one OH group, wherein the hydrophilic metal oxide particles have a BET specific surface area of at least 10 m2/g and at least 80% of the hydrophilic metal oxide particles have a particle size in the range of from 5 nm to 900 [mu]m, and wherein the amount of the thickener is in the range of from 0.1-40% by weight, based on the total weight of the grease composition. The invention further relates to methods for manufacturing the grease composition, and the use of the grease composition for lubricating bearings, gears and couplings.

Description

Lubricant composition
Invention field
The present invention relates to lubricant composition, the method for production lubricant composition and lubricant composition lubrication axle Hold, the purposes of gear and shaft coupling.
Background of invention
Lubricant composition is widely used for lubricating bearing and other structures part.Lubricating grease be mitigate for example abrasion, The necessary product of friction, running temperature and energy loss.Lubricating grease is the material of the base oil for including being thickened by metallic soap, and it Generally prepared by making metal hydroxides and aliphatic acid react in the presence of base oil.In order to obtain appropriate heat-machine Tool stability, conventional metallic soap lubricating grease needs to carry out the lubricating grease boiling of highly energy-consuming and grinding technics.Conventional metallic soap Lubricating grease can be still sensitive to poor heat-mechanical stability and the additional process of needs.It is known by thickening work Add solid additive in skill further to improve the stability of traditional lubrication fat and thus further improve lubricating ability.This Planting the example of solid additive includes, such as molybdenum bisuphide, graphite, zinc oxide and/or silica gel.Lubricating grease boiling and grinding technics It is relatively expensive with additional process, because they are carried out at high temperature and in relatively long time period.Additionally, the profit being prepared Consistent lubricant is still not suitable in various applications, and not all traditional lubrication fat are adapted to the application of Food ＆ Drink processing.
Accordingly, there exist can easily with the demand of the lubricating grease of low cost production, and they are stable and in low friction Aspect of performance shows highly attractive greasy property.Additionally, there are to biodegradable, eco-friendly and food phase The demand of the lubricating grease of appearance.
The content of the invention
It is an object of the invention to provide lubricant composition, it shows excellent greasy property, and such as lubricating grease is used Life performance, corrosive wear and heat and mechanical stability and can easily with low cost manufacture and/or it is more environmentally friendly.
It is surprising that it has now been found that when using base oil, hydrophilic metal oxide particle and comprising one During one or more acid amides of individual or multiple unsaturated C-C keys and/or at least one OH bases, this purpose can be realized.
Therefore, the present invention relates to a kind of lubricant composition, it includes base oil and thickening agent, and thickening agent includes hydrophily Metal oxide particle and one or more acid amides comprising one or more unsaturated C-C keys and/or at least one OH bases, its Middle hydrophilic metal oxide particle has at least 10m2The BET specific surface area of/g and the oxidation of at least 80% hydrophilic metal The granularity of composition granule is in the range of 5nm to 900 μm, and wherein the amount of thickening agent is being based on by weight lubricant composition Gross weight 0.1%-40% in the range of.
Therefore, the invention further relates to a kind of lubricant composition, it includes base oil and thickening agent, and thickening agent is comprising hydrophilic Property metal oxide particle and one or more acid amides comprising one or more unsaturated C-C keys and at least one OH bases, its Middle hydrophilic metal oxide particle has at least 10m2The BET specific surface area of/g and the oxidation of at least 80% hydrophilic metal The granularity of composition granule is in the range of 5nm to 900 μm, and wherein the amount of thickening agent is being based on by weight lubricant composition Gross weight 0.1%-40% in the range of.
The invention further relates to a kind of lubricant composition, comprising base oil and thickening agent, thickening agent includes hydrophilic metal Oxide particle and one or more acid amides comprising at least one OH bases, wherein hydrophilic metal oxide particle have at least 10m2Scope of the granularity of the BET specific surface area of/g and at least 80% hydrophilic metal oxide particle at 5nm to 900 μm It is interior, and wherein the amount of thickening agent is being based on by weight in the range of the 0.1%-40% of the gross weight of lubricant composition.
The present invention relates to a kind of lubricant composition, comprising base oil and thickening agent, thickening agent includes hydrophilic metal oxygen Compound particle and one or more acid amides comprising one or more unsaturated C-C keys, wherein hydrophilic metal oxide particle With at least 10m2The granularity of the BET specific surface area of/g and at least 80% hydrophilic metal oxide particle is in 5nm to 900 In the range of μm, and the wherein 0.1%-40% of the amount of thickening agent in the gross weight for being based on lubricant composition by weight In the range of.
The present invention relates to a kind of lubricant composition, comprising base oil and thickening agent, thickening agent includes hydrophilic metal oxygen Compound particle and one or more acid amides comprising two or more unsaturated C-C keys, wherein hydrophilic metal oxide Grain has at least 10m2The granularity of the BET specific surface area of/g and at least 80% hydrophilic metal oxide particle is arrived in 5nm In the range of 900 μm, and wherein 0.1%- of the amount of thickening agent in the gross weight for being based on lubricant composition by weight In the range of 40%.
The invention further relates to a kind of lubricant composition, comprising base oil and thickening agent, thickening agent includes hydrophilic metal Oxide particle and one or more acid amides comprising two or more unsaturated C-C keys and at least one OH bases, wherein parent Water-based metal oxide particle has at least 10m2The BET specific surface area of/g and at least 80% hydrophilic metal oxide The granularity of grain is in the range of 5nm to 900 μm, and wherein the amount of thickening agent is being based on by weight the total of lubricant composition In the range of the 0.1%-40% of weight.
Thickening agent can include one or more slaine, such as metal sulfonate, metal sulfate, metal phosphate And/or metal phosphinate hydrochlorate.
Lubricant composition of the invention shows attractive low friction performance, and while they can be easy to With low cost manufacture and/or be more environmentally friendly.
Detailed description of the invention
The lubricant composition of the present invention is included comprising one or more unsaturated C-C keys and/or at least one OH bases One or more acid amides.
The suitable example of acid amides includes the acyclic, aliphatic of single unsaturation, aromatic amides, methylol amide, ester acyl Amine (unsaturated (poly-) esteramides), substituted acid amides (such as N- alkylamides and N, N- alkylamide) and bisamide.
Acid amides used according to the invention is unsaturated amides, the acid amides comprising one or more OH bases and undersaturated And comprising the acid amides of one or more OH bases.
Suitably, one or more acid amides is fatty acid amide.Fatty acid amide is the acid amides derived from aliphatic acid.Will reason Solution, aliphatic acid is the aliphatic monocarboxylic acid derived from animal or plant fat, oil or wax, or is comprised in esterified form dynamic Aliphatic monocarboxylic acid in thing or plant fat, oil or wax.According to the present invention, natural and synthesis aliphatic acid can be used.Suitably Ground, it is possible to use introduce the mixture of the aliphatic acid of amide group.For example, the OH bases of carboxylic acid can be by NH2Base is substituted.
Preferably, amide derivative used according to the invention is from aliphatic acid.
Fatty acid amide generally by reaction row between carboxylic acid and amine into.Acid amides is produced using good several method.Fat Formed in the reaction that fat acid acid amides can be between carboxylic acid derivates and amine or ammonia.Fatty acid amide can be by by NH2Amino The hydroxyl of carboxylic acid is substituted being formed.Acid amides can be with suitably by the reaction of acid chloride, acid anhydrides or ester and amine acquisition.According to this The acid amides that invention is used can also be obtained by alcohol with amine reaction.Other suitable acid amides are that natural acid amides such as can be derived from The oleamide and erucyl amide of vegetable seed and other seeds.
Fatty acid amide used according to the invention can include octanoic acid, n-nonanoic acid, the last of the ten Heavenly stems by its derivative suitable aliphatic acid Acid, laurate, cis-dodecenoic acid, myristic acid (rayristic acid), tsuzuic acid, physetoleic acid, myristoleic acid, ten Five alkanoic acids, palmitic acid, palmitoleic acid, Heptadecanoic acide, stearic acid, 12- hydroxy stearic acids, petroselic acid, oleic acid, elaidic acid, different oil Acid, linoleic acid, leukotrienes, eleostearic acid, tuberlostearic acid, arachidic acid, eicosadienoic acid, eicosatrienoic acid, arachidonic acid, Behenic acid, lignoceric acid, nervonic acid, hexacosoic acid, octocosoic acid and erucic acid.
Suitably, one or more acid amides comprising one or more unsaturated C-C keys includes at least one OH bases, preferably At least two OH bases.Suitably, acid amides used according to the invention include one or more unsaturated C-C keys, preferably two or More unsaturated C-C keys.Acid amides can be branched or unbranched acid amides.
Preferably, acid amides used according to the invention includes unsaturated amides, such as oleamide, ricinoleamide, flax Acid amides and erucyl amide.
The suitable example of substituted unsaturated amides used according to the invention includes N- stearyl oleamides, N, N- bis- Oil base adipamide, N, N- pair-(2- ethoxys) oleamide and 2- [N- (2- ethoxys) oleoyl amino] ethyl oleate, N, N- diethanols oleamide and its any mixture.
The suitable example of fatty acid amide used according to the invention includes octanoic acid, n-nonanoic acid, capric acid, laurate, balcony Linderaic acid, myristic acid, tsuzuic acid, physetoleic acid, myristoleic acid, pentadecanoic acid, palmitic acid, palmitoleic acid, heptadecane Acid, stearic acid, 12- hydroxy stearic acids, petroselic acid, oleic acid, elaidic acid, vaccenic acid [being present in animal tallow and butter], Asia Oleic acid, leukotrienes, eleostearic acid, tuberlostearic acid, arachidic acid, eicosadienoic acid, eicosatrienoic acid acid, arachidonic acid are [each The culture medium of kind of microorganism], behenic acid, lignoceric acid, nervonic acid, hexacosoic acid, octocosoic acid and erucic acid.
Other suitable examples include saturated fatty acid monoamides (preferably lauramide, palmitamide, peanutamide, Behenyl acid amides, stearmide, 12 hydroxystearics)；Unrighted acid monoamides (preferably oleamide, erucyl amide, castor Sesame oil acid amides)；And fatty acid amide (more preferably N- stearyl stearamides, N- behenyl base behenyl acid amides, the N- that N- replaces Stearyl behenyl acid amides, N- behenyl base stearmides, N- oil base oleamides, N- oil base stearmides, N- oleyl palimitamides, N- Stearyl oleamide, N- stearyls)；Erucyl amide, erucic acid base erucyl amide, erucic acid base stearmide, methylol amide is (more excellent Select hydroxymethylstear amide, methylol behenyl acid amides)；Saturated fatty acid bisamide (more preferably methylene bis stearamide, ethylene The double isostearoyl amine of bis-stearamides, ethylene, the double hydroxystearics of ethylene, the double behenyl acid amides of ethylene, hexamethylene bis are stearic Acid amides, hexamethylene bis behenyl acid amides, hexamethylene bis hydroxystearic, N, N' distearyl adipamides, N, N' bis- Stearyl decanediamide)；Unrighted acid bisamide (more preferably ethylene double oleamide, hexamethylene bis oleamide, N, N' bis- Oil base adipamide, N, the oil base decanediamides of N' bis-；Saturation or undersaturated four acid amides, stearyl erucamide, ethylene are double Stearmide and the double oleamides of ethylene.
A large amount of useful fatty acid amides used according to the invention are Humko Chemical Company, Memphis, Tenn. commercially available and including such as Kemamide B (behenyl acid amides/peanutamide), Kemamide with Kemamide trade names W40 (N, N'- ethylene bis stearamide), Kemamide P181 (oleyl palimitamide), Kemamide S (stearmide), Kemamide U (oleamide), Kemamide E (erucyl amide), Kemamide O (oleamide), Kemamide W45 (N, N'- Ethylene bis stearamide), Kenamide W20 (N, N'- ethylene oleamide), Kemamide E180 (stearyl erucamide), Kemamide E221 (erucic acid base erucyl amide), Kemamide S180 (stearyl stearamide), Kemamide S221 (mustard Acidic group stearmide) and the like.Additionally, useful fatty acid amide is Croda Universal Ltd., Hull East Yorkshire, England with Crodamide trade names it is commercially available and including such as Crodamide OR (oleamide), Crodamide ER (erucyl amide), Crodamide SR (stearmide), Crodamide BR (behenyl acid amides), Crodamide 203 (oleyl palimitamide) and Crodamide 212 (stearyl erucamide).
Other suitable exemplary of amides used according to the invention include diamides, such as ethylene bis stearamide, second The double oleamides of support, the double oleamides of ethoxy ethylene, the double 12- hydroxystearics of ethylene and double hydroxyethyl oleyl amine；And containing OH The double oleamides of the acid amides of base, such as ethoxy ethylene, the double 12- hydroxystearics of ethylene.
Suitably, one or more acid amides comprising one or more unsaturated C-C keys and/or at least one OH bases is gold Category salt.Metal in slaine is preferably the alkali metal or alkaline-earth metal and bismuth of the 1st race in the periodic table of elements and the 2nd race.Gold The appropriate example of category includes lithium, potassium, sodium, calcium, aluminium, rubidium, caesium, francium, beryllium, strontium, barium, radium, bismuth and magnesium.Additionally, it should be noted that making Metal in slaine can be the semimetal of such as boron.Preferred embodiment of the invention, metal is alkaline-earth metal, Most preferably calcium.Acid amides can include ester group.
Suitably, lubricant composition also include one or more slaine, such as metal sulfonate, metal sulfate, Metal phosphate and/or metal phosphinate hydrochlorate.
One or more acid amides used according to the invention has by one or more unsaturations along fatty acid chain The OH bases that introduce on C-C keys and/or at least one OH bases and the secondary location in such as fatty acid chain and the antipode that is introduced into Property.In this manner it is achieved that improved low friction performance.
Therefore, present invention is preferably related to a kind of lubricant composition, it includes base oil and thickening agent, and thickening agent includes parent Water-based metal oxide particle, one or more acid amides comprising one or more unsaturated C-C keys and/or at least one OH bases And the slaine of one or more aliphatic acid, wherein hydrophilic metal oxide particle is with least 10m2The BET of/g compares table The particle size range of area and at least 80% hydrophilic metal oxide particle is 5nm to 900 μm, and the amount of wherein thickening agent exists In the range of 0.1%-40% by weight based on the gross weight of lubricant composition.
The slaine of appropriate aliphatic acid includes octanoic acid, n-nonanoic acid, capric acid, laurate, cis-dodecenoic acid, myristic acid, slightly Rent acid, physetoleic acid, myristoleic acid, pentadecanoic acid, palmitic acid, palmitoleic acid, Heptadecanoic acide, stearic acid, 12- hydroxyls are hard Resin acid, petroselic acid, oleic acid, elaidic acid, vaccenic acid, linoleic acid, leukotrienes, eleostearic acid, tuberlostearic acid, arachidic acid, 20 carbon two Olefin(e) acid, eicosatrienoic acid, arachidonic acid, behenic acid, lignoceric acid, nervonic acid, hexacosoic acid, octocosoic acid and The slaine of erucic acid.
The slaine of one or more aliphatic acid can be the slaine of different aliphatic acid.When the metal using two kinds of different acid During salt, the first metal and the second metal can be identical metal, or they can be with different from each other.Two kinds of aliphatic acid are used wherein Slaine another embodiment in, the aliphatic acid of the aliphatic acid of the first slaine and the second slaine can be identical Aliphatic acid, or they can be with different from each other.When the slaine using two kinds of different aliphatic acid, when the fat of the first slaine When the aliphatic acid of acid and the second slaine is identical aliphatic acid, then at least the first metal and the second metal will be the gold for differing Category, vice versa.Suitably, the aliphatic acid of the aliphatic acid of the first slaine and the second slaine includes that different number of carbon is former Son.Preferably, the aliphatic acid of the first metal includes 2 to 16 carbon atoms and the aliphatic acid of the second slaine includes 20 to 24 Carbon atom.Suitably, the aliphatic acid of the first slaine is butyric acid, caproic acid, octanoic acid, capric acid, laurate, myristic acid or palm Acid, preferably caproic acid or octanoic acid.Suitably, the aliphatic acid of the second slaine is arachidic acid, behenic acid or lignoceric acid.So Lubricant composition it is especially noticeable in the low-speed applications of such as mining industry and cement applications.Preferably, thickening agent is removed Including outside one or more amine also including the slaine of stearic acid, 12- hydroxy stearic acids and/or oleic acid.It is highly preferred that metal Salt is the slaine of 12- hydroxy stearic acids, is preferably combined with the slaine of stearic slaine and/or oleic acid.Except one kind Or outside the slaine of various aliphatic acid, thickening agent also includes one or more aliphatic acid.Preferably, thickening agent is except including 12- Also include 12- hydroxy stearic acids, stearic acid or oleic acid outside the slaine of hydroxy stearic acid, stearic acid or oleic acid.The gold of aliphatic acid Category salt can include amide groups, amino, OH bases and/or ester group.
Present invention is preferably related to a kind of lubricant composition, comprising base oil and thickening agent, thickening agent includes hydrophily gold Category oxide particle, one or more acid amides and comprising one or more unsaturated C-C keys and/or at least one OH bases The slaine of kind or various aliphatic acid, the slaine of wherein at least one aliphatic acid includes one or more not comprising at least one Saturation C-C key, wherein hydrophilic metal oxide particle have at least 10m2The BET specific surface area of/g and at least 80% parent In the range of 5nm to 900 μm, wherein the amount of thickening agent is by weight based on lubrication for the granularity of water-based metal oxide particle In the range of the 0.1%-40% of the gross weight of oil/fat composition.
Present invention is preferably related to a kind of lubricant composition, comprising base oil and thickening agent, thickening agent includes hydrophily gold Category oxide particle, one or more acid amides and comprising one or more unsaturated C-C keys and/or at least one OH bases Plant or various aliphatic acid, wherein hydrophilic metal oxide particle has at least 10m2The BET specific surface area of/g and at least The granularity of 80% hydrophilic metal oxide particle is in the range of 5nm to 900 μm, and the wherein amount of thickening agent is by weight In the range of 0.1%-40% of the meter based on the gross weight of lubricant composition.
Present invention is preferably related to a kind of lubricant composition, comprising base oil and thickening agent, thickening agent includes hydrophily gold Category oxide particle, one or more acid amides and comprising one or more unsaturated C-C keys and/or at least one OH bases Plant or various aliphatic acid, wherein at least one aliphatic acid includes one or more unsaturated C-C keys, wherein hydrophilic metal oxidation Composition granule has at least 10m2The granularity of the BET specific surface area of/g and at least 80% hydrophilic metal oxide particle exists In the range of 5nm to 900 μm, and wherein 0.1%- of the amount of thickening agent in the gross weight for being based on lubricant composition by weight In the range of 40%.
Suitably, thickening agent comprises additionally in one or more slaine, such as metal sulfonate, metal sulfate, metal Phosphate and/or metal phosphinate hydrochlorate.
The appropriate aliphatic acid that can be used includes octanoic acid, n-nonanoic acid, capric acid, laurate, cis-dodecenoic acid, myristic acid, slightly Rent acid, physetoleic acid, myristoleic acid, pentadecanoic acid, palmitic acid, palmitoleic acid, Heptadecanoic acide, stearic acid, 12- hydroxyls are hard Resin acid, petroselic acid, oleic acid, elaidic acid, vaccenic acid, linoleic acid, leukotrienes, eleostearic acid, tuberlostearic acid, arachidic acid, 20 carbon two Olefin(e) acid, eicosatrienoic acid, arachidonic acid, behenic acid, lignoceric acid, nervonic acid, hexacosoic acid, octocosoic acid and Erucic acid.
When using two or more different aliphatic acid, aliphatic acid suitably includes different number of carbon atom.It is excellent Selection of land, the first aliphatic acid includes 2 to 16 carbon atoms and the second aliphatic acid includes 20 to 24 carbon atoms.Suitably, first Aliphatic acid is butyric acid, caproic acid, octanoic acid, capric acid, laurate, myristic acid, palmitic acid, preferably caproic acid and octanoic acid.Suitably, Difatty acid is arachidic acid, behenic acid or lignoceric acid.Such lubricant composition low-speed applications (for example mining industry and Cement applications) in it is especially noticeable.In another noticeable embodiment of the present invention, lubricant composition includes two Different aliphatic acid are planted, two of which aliphatic acid includes 18 carbon atoms.Suitably, two kinds of aliphatic acid are selected from stearic acid, oil Acid and 12- hydroxy stearic acids.Preferably, the first aliphatic acid is 12- hydroxy stearic acids and the second stearic acid is stearic acid.12- Hydroxy stearic acid is possible to form covalent bond with the OH bases (silanol) of unbodied hydrophilic fumed silica, so that profit Grease composition has the performance for having a great attraction in terms of thermo mechanical stability.
The present invention also relates to a kind of lubricant composition, comprising base oil and thickening agent, thickening agent includes hydrophilic metal Oxide particle, one or more acid amides, Yi Zhonghuo comprising one or more unsaturated C-C keys and/or at least one OH bases The salt of various aliphatic acid and one or more aliphatic acid, wherein hydrophilic metal oxide particle have at least 10m2/ g's The granularity of BET specific surface area and at least 80% hydrophilic metal oxide particle in the range of 5nm to 900 μm, and its The amount of middle thickening agent is being based on by weight in the range of the 0.1%-40% of the gross weight of lubricant composition.
Suitably, thickening agent comprises additionally in one or more slaine, such as metal sulfonate, metal sulfate, metal Phosphate and/or metal phosphinate hydrochlorate.
When the slaine and/or one or more aliphatic acid that there is one or more aliphatic acid, preferably at least a kind of fat The slaine or aliphatic acid of fat acid is comprising one or more unsaturated C-C keys and at least one OH bases.
Present invention relates particularly to a kind of lubricant composition, comprising base oil and thickening agent, thickening agent includes hydrophily gold Category oxide particle, one or more ester comprising one or more unsaturated C-C keys and at least one OH bases be (preferred esterification Aliphatic acid) and one or more acid amides comprising one or more unsaturated C-C keys and/or at least one OH bases, wherein parent Water-based metal oxide particle has at least 10m2The BET specific surface area of/g and at least 80% hydrophilic metal oxide The granularity of grain is in the range of 5nm to 900 μm, and the wherein amount of thickening agent is in the gross weight for being based on lubricant composition by weight In the range of the 0.1%-40% of amount.
Appropriate ester includes beta-unsaturated esters such as methyl oleate and ethyl linoleate；Saturation diester such as decanedioic acid two is pungent Ester, Plexol 201 and dioctyl adipate；And the ester containing OH bases such as methyl isophthalic acid 2-hydroxystearic acid ester, 9- ten Eight olefin(e) acids, 12 hydroxy methyls and palmitic acid hydroxyl ester.Other suitable fat include non-branching and branched-alkyl carboxylate and three Acid glyceride, specially unsaturated triglyceride.
Suitably, one or more ester includes one or more unsaturated C-C keys.Preferably, one or more ester is included One or more unsaturated C-C keys and at least one OH bases.Suitably, one or more ester is diester.Suitably, ester can be Branched or non-branching ester.Suitably, one or more ester includes one or more unsaturated C-C keys and at least one OH bases.It is suitable Locality, one or more ester includes at least two OH bases.Suitably, one or more ester includes at least two unsaturation C-C keys With at least one OH bases.Suitably, one or more ester includes at least two unsaturation C-C keys and at least two OH bases.Suitably Ground, one or more ester is slaine.Ester may include amido and/or amide groups.
Present invention relates particularly to a kind of lubricant composition, it includes base oil and thickening agent, and thickening agent includes hydrophily Metal oxide particle, one or more acid amides comprising one or more unsaturated C-C keys and/or at least one OH bases and One or more amine, wherein hydrophilic metal oxide particle have at least 10m2The BET specific surface area of/g and at least 80% Hydrophilic metal oxide particle granularity in the range of 5nm to 900 μm, and the wherein amount of thickening agent is in base by weight In the range of the 0.1%-40% of the gross weight of lubricant composition.
Suitable amine includes the amine comprising one or more unsaturated C-C keys.Suitable amine also includes the amine containing OH bases, Such as ethyl hydroxy stearylamine and double hydroxyethyl oleyl amine, and diamines such as double hydroxyethyl oleyl amine.Further, it is possible to use unsaturated Amine.
Suitably, one or more amine is fatty acid amine.One or more amine can suitably additionally comprise at least one OH bases, suitably at least two OH bases.Suitably, one or more amine includes one or more unsaturated C-C keys and at least one Individual OH bases.Suitably, one or more amine is slaine.Amine can be branched or non-branching amine.Amine can include ester group.
Lubricant composition of the invention is preferably non-hydroxide lubricant composition.Non-hydrogen of the invention Not including the impurity of for example excessive hydroxide, excessive hydroxide is typically occurred in by normal oxide lubricant composition In lubricating grease prepared by the calcium soap production technology of rule.Non-hydroxide lubricant composition of the invention is suitably substantially Free hydroxide ion and/or metal hydroxides is not included.Preferably, non-hydroxide lubricant composition of the invention Including by weight less than based on lubricant composition gross weight 0.2%, and more preferably by weight less than 0.1% trip From hydroxide ion and/or metal hydroxides.Preferably, non-hydroxide lubricant composition of the invention is not substantially Including free hydroxide ion and/or metal hydroxides.Preferably, non-hydroxide lubricant composition bag of the invention Include by weight less than 0.2% of the gross weight based on lubricant composition, and the metal more preferably by weight less than 0.1% Hydroxide.Most preferably, non-hydroxide lubricant composition of the invention is entirely free of metal hydroxides.Will manage Solution, is present on hydrophilic metal oxide particle or aliphatic acid (such as 12- hydroxyl stearates) or such aliphatic acid Slaine in OH bases be not considered as free hydroxide ion because they to be bonded to the silicon atom of aliphatic acid or carbon former Son.Thickening agent used according to the invention is suitably the thickening agent of non-saponified.
The present invention also provides a kind of lubricant composition, and comprising base oil and thickening agent, thickening agent is aoxidized comprising hydrophily Silicon grain and one or more acid amides comprising one or more unsaturated C-C keys and/or at least one OH bases, wherein hydrophily Silicon oxide particle has at least 10m2The particle mean size of the BET specific surface area of/g and at least 80% hydrophily silicon oxide particle Scope is 5nm to 900 μm, and wherein 0.1%- of the amount of thickening agent in the gross weight for being based on lubricant composition by weight In the range of 40%.
The present invention further provides a kind of lubricant composition, comprising base oil and thickening agent, thickening agent includes hydrophily Titanium oxide particles and/or hydrophily alumina particle and comprising one or more unsaturated C-C keys and/or at least one OH One or more acid amides of base, wherein hydrophily Titanium oxide particles and/or hydrophily alumina particle have at least 10m2/g BET specific surface area and at least 80% hydrophily Titanium oxide particles and/or hydrophily alumina particle particle mean size In the range of 5nm to 900 μm, and the wherein amount of thickening agent is in the gross weight for being based on lubricant composition by weight In the range of 0.1%-40%.
The present invention also provides a kind of lubricant composition, and it includes base oil and thickening agent, and thickening agent includes hydrophily gold Category oxide particle, one or more acid amides, one kind comprising one or more unsaturated C-C keys and/or at least one OH bases Or slaine, one or more aliphatic acid, one or more ester and/or the amine of various aliphatic acid, wherein hydrophilic metal oxidation Composition granule has at least 10m2The particle mean size of the BET specific surface area of/g and at least 80% hydrophilic metal oxide particle In the range of 5nm to 900 μm, and the wherein amount of thickening agent is in the gross weight for being based on lubricant composition by weight In the range of 0.1%-40%.The slaine of one or more aliphatic acid, one or more aliphatic acid, one or more ester and/ Or amine can be any one compound being described herein above.
Additionally, the present invention relates to a kind of lubricant composition, including base oil and thickening agent, thickening agent includes hydrophily gold Category oxide particle, one or more metal sulfonate, metal sulfate, metal phosphate and/or metal phosphinate hydrochlorate and bag One or more acid amides containing one or more unsaturated C-C keys and/or at least one OH bases, wherein hydrophilic metal oxide Particle has at least 10m2The BET specific surface area of/g and at least 80% hydrophilic metal oxide particle has 5nm to 900 μm In the range of particle mean size, and wherein the amount of thickening agent by weight be based on lubricating grease gross weight 0.1%-40% model In enclosing.
The present invention also provides a kind of lubricant composition, and it includes base oil and thickening agent, and thickening agent includes hydrophily gold Category oxide particle, one or more acid amides comprising one or more unsaturated C-C keys and at least one OH bases, one kind or many Plant slaine, wherein one or more aliphatic acid, one or more ester and/or the amine, hydrophilic metal oxide of aliphatic acid Grain has at least 10m2The particle mean size of the BET specific surface area of/g and at least 80% hydrophilic metal oxide particle exists In the range of 5nm to 900 μm, and wherein 0.1%- of the amount of thickening agent in the gross weight for being based on lubricant composition by weight In the range of 40%.The slaine of one or more aliphatic acid, one or more aliphatic acid, one or more ester and/or amine can Being any one compound being described herein above.
Additionally, the present invention relates to a kind of lubricant composition, including base oil and thickening agent, thickening agent includes hydrophily gold Category oxide particle, one or more metal sulfonate, metal sulfate, metal phosphate and/or metal phosphinate hydrochlorate and bag One or more acid amides containing one or more unsaturated C-C keys and at least one OH bases, wherein hydrophilic metal oxide Grain has at least 10m2The BET specific surface area of/g and at least 80% hydrophilic metal oxide particle has 5nm to 900 μm of model Enclose interior particle mean size, and wherein scope of the amount of thickening agent in the 0.1%-40% of the gross weight for being based on lubricating grease by weight It is interior.
The present invention also provides a kind of lubricant composition, and it includes base oil and thickening agent, and thickening agent includes hydrophily gold Category oxide particle, one or more acid amides comprising one or more unsaturated C-C keys, the metal of one or more aliphatic acid Salt, one or more aliphatic acid, one or more ester and/or amine, wherein hydrophilic metal oxide particle have at least 10m2/ Scope of the particle mean size of the BET specific surface area of g and at least 80% hydrophilic metal oxide particle at 5nm to 900 μm It is interior, and wherein the amount of thickening agent is being based on by weight in the range of the 0.1%-40% of the gross weight of lubricant composition.One The slaine of kind or various aliphatic acid, one or more aliphatic acid, one or more ester and/or amine can be described herein above Any one compound.
Additionally, the present invention relates to a kind of lubricant composition, including base oil and thickening agent, thickening agent includes hydrophily gold Category oxide particle, one or more metal sulfonate, metal sulfate, metal phosphate and/or metal phosphinate hydrochlorate and bag One or more acid amides containing one or more unsaturated C-C keys, wherein hydrophilic metal oxide particle have at least 10m2/ The BET specific surface area of g and at least 80% hydrophilic metal oxide particle have the particle mean size in the μ ms of 5nm to 900, And wherein the amount of thickening agent is being based on by weight in the range of the 0.1%-40% of the gross weight of lubricating grease.
The present invention also provides a kind of lubricant composition, and it includes base oil and thickening agent, and thickening agent includes hydrophily gold Category oxide particle, one or more acid amides comprising at least one OH bases, slaine, the Yi Zhonghuo of one or more aliphatic acid Various aliphatic acid, one or more ester and/or amine, wherein hydrophilic metal oxide particle have at least 10m2The BET ratios of/g The particle mean size of surface area and at least 80% hydrophilic metal oxide particle in the range of 5nm to 900 μm, and wherein The amount of thickening agent is being based on by weight in the range of the 0.1%-40% of the gross weight of lubricant composition.One or more fat The slaine of fat acid, one or more aliphatic acid, one or more ester and/or amine can be any one changes being described herein above Compound.
Additionally, the present invention relates to a kind of lubricant composition, including base oil and thickening agent, thickening agent includes hydrophily gold Category oxide particle, one or more metal sulfonate, metal sulfate, metal phosphate and/or metal phosphinate hydrochlorate and bag One or more acid amides containing at least one OH bases, wherein hydrophilic metal oxide particle have at least 10m2The BET ratios of/g Surface area and at least 80% hydrophilic metal oxide particle have the particle mean size in the μ ms of 5nm to 900, and wherein thick The amount of agent is being based on by weight in the range of the 0.1%-40% of the gross weight of lubricating grease.
The property of base oil used according to the invention is non-essential.Base oil can be selected from mineral base oil and conjunction Into the group of base oil composition.Mineral base oil is derived from crude oil and is formulated based on the base oil of aromatic series, paraffin and/or cyclic hydrocarbon. Further, it is known that various synthetic base oils and they include ester, poly-alpha-olefin, polysiloxanes and the like.
Base oil used according to the invention can include base oil blend.Suitably, can using mineral base oil and The blend of synthetic base oil.The base oil of the present invention is the base oil or grease base plinth oil that can be usually used as lubricating oil Base oil, and without special restriction.The example for referring to can be by mineral oil, artificial oil, animal oil and vegetable oil and its mixed Compound is constituted.Specifically, the I belonged in API (American Petroleum Institute) basis oil classifications can be used individually or with mixture The base oil of group, Group II, Group III, Group IV etc..Group i base oils are included, for example, (are for example just moistened by refinery practice Solvent refined, hydrofinishing and dewaxing for the cut of lubricating oil-obtained by crude oil atmospheric distillation) appropriate combination obtain Paraffinic mineral oil.Group II base oil includes, such as by refinery practice (such as lubrication for just being obtained by crude oil atmospheric distillation Hydrofinishing and dewaxing for oil distillate) appropriate combination obtain paraffinic mineral oil.By being hydrogenated with method for refining (for example The method of Gulf companies) refining Group II base oil have less than 10ppm total sulfur content and not more than 5% aromatic series contain Amount, and thus suitable for the present invention.Group III base oil and group iv base oils are included by height hydrogenation refining (with regard to crude oil Air-distillation obtain lube cut for) and prepare paraffinic mineral oil, by isomerization dewaxing technique (by isomery paraffin Jing The wax of dewaxing technique production is dewaxed and is replaced) base oil of refining and the wax isomerization process that passes through Mobil The base oil of refining.These also are adapted for being used in the present invention.The specific example of artificial oil includes polyolefin, polyoxyalkylene second two Alcohol such as polyethylene glycol or polypropylene glycol, ester such as two -2- ethylhexyls sebacates or two -2- ethyl hexyl adipates, Polyol ester trihydroxymethylpropanyl ester or pentaerythritol ester, perfluoroalkyl ethers, silicone oil, polyphenylene oxide etc..Aforementioned polyolefins bag Include different alkene or the polymer of its hydride.Any alkene, and the example that can be mentioned that can be used by ethene, propylene, butylene Constitute with the alhpa olefin with 5 or more carbon.During production polyolefin, one of foregoing alkenes can be used alone or two kinds or more Various being combined uses.It is particularly suitable to the polyolefin of referred to as poly-alpha-olefin (PAO).These are the bases of Group IV Oil.Compared with the mineral oil base oil refined by crude oil, synthesized by the way that natural gas to be converted into the fischer-tropsch process of liquid fuel GTL (gas is to liquid) base oil sulfur content and aromatic hydrocarbon content it is very low and constitute ratio with very high paraffin, Thus also have excellent oxidation stability, and simultaneously as they also have very little evaporating loss, they also be adapted for make For the base oil of the present invention.The typical case of the animal and plant oil for referring to can be made up of castor oil and rapeseed oil.It is various aforementioned Oil can individually or oil is used based on mixture.Aforementioned exemplary is listed one by one, but the present invention is not limited except as.
Preferably, base oil used according to the invention or base oil blend have according to 51562/1,40 DEG C of temperature of DIN Kinematic viscosity when spending in the range of 1 to 60 000cSt.Appropriate base oil includes ISO VG 68, ISO VG 46, ISO VG 32nd, ISO VG 22, ISO VG 15 and ISO VG 10 are oily.
Hydrophilic metal oxide particle used according to the invention can be derived from titanium oxide, aluminum oxide and silica. Preferably, hydrophilic metal oxide particle is derived from silica.Hydrophilic metal oxide particle can be crystal hydrophily gold Category oxide particle or amorphous hydrophilic metal oxide particle.Suitably, using amorphous hydrophilic metal oxide Grain.The amorphous silicon oxide for being used may include different amounts of water, and this means that it can include silicic acid.In terms of this, should Note the adopted name of a group of chemical compound, oligomer and polymer that silicic acid is made up of silicon, hydrogen and oxygen.According to the present invention The amorphous silicon grain for using is derived from amorphous hydrophilic silica.It is highly preferred that they are derived from unbodied heat Solution silica.Most preferably, silicon oxide particle is derived from unbodied hydrophilic fumed silica.As known in this field , fused silica is the especially pure form of silica (being prepared by the silicon tetrachloride as parent material).
The suitable source of fused silica is commercially available by Evonik Industries (being formerly referred to as Degussa) Aerosil (R) or by Cabbot Corporation commercially available Cap-o-Sil (R).Preferably, the average grain of silicon oxide particle Degree scope is 5 to 100 microns and its BET specific surface area scope is 5 to 100m2/g。
According to the invention it is possible to use the mixture of different hydrophilic metal oxide particle.For example, it is possible to use hydrophilic The mixture of property Titanium oxide particles and hydrophily alumina particle.
Suitably, hydrophilic metal oxide particle has at least 50m2/ g, more preferably at least 75m2It is/g, still even more excellent Choosing at least 100m2/ g, still even more desirably at least 125m2/ g and most preferably at least 150m2The BET specific surface area of/g.Although excellent Select BET specific surface area as far as possible it is high, but generally it is not above 500m2/g.The method for determining BET specific surface area is this area It is known.
In some embodiments of the present invention, the BET specific surface area of hydrophilic metal oxide particle is less than 50m2/g。
According to the present invention, the granularity of at least 80% hydrophilic metal oxide particle is 5nm to 900 μm.In some realities In applying scheme, the granularity of at least 80% hydrophilic metal oxide particle is 5 to 50nm, preferably 5 to 40nm, more preferably 10 to arrive 40nm and most preferably 20 arrives 40nm.The overall particle size powder distribution of amorphous silicon grain is preferably 1 to 50nm.
Lubricant composition of the invention may also include other thickening components, such as comprising one or more OH bases And/or one or more unsaturated bonds and/or one or more ester groups and/or one or more aromatic radicals polymer or other Fatty compound.Such thickening component can suitably with less than the gross weight for being based on lubricant composition by weight 3%th, the amount preferably by weight less than 2% is present.
Lubricant composition of the invention can include other additives so that it is applied to use well known in the art On the way.Such additive includes antiwear agents, corrosion inhibitor, antirust agent, friction modifier, antioxidant, viscosity index (VI) improvement Agent (VI-improvers) and as by analog well known to those skilled in the art.As the suitable examples of these additives Can be mentioned that sulfonate, sulfate, phosphate and/or phosphonate.Appropriate sulfonate includes such as methylmesylate, methyl ester sulfonate And sulfoacid calcium.Appropriate sulfate for example includes calcium sulfate, lauryl sodium sulfate and NaLS.Appropriate phosphate Including such as calcium monohydrogen phosphate and phosphamide.Appropriate phosphonate includes such as phosphonic acids calcium and other phosphonate esters.Other are appropriate to add Plus agent includes silane, (alkylation) siloxanes, metal hydroxides silicate, silanol, hydrosilicate and metal bonding Silicon compound such as Mg3(Si2O5)(OH)2.The example of these additives is such as polydimethyl siloxane oil, hexamethyl two Siloxanes, hydrous magnesium silicate and other phyllosilicate.Also include polymethylsilsesquioxane, aqueous (metal) silicate, nothing The silica and synthesized silicon rubber of setting, they are all the additives for lifting polymer performance.Such other additives Amount suitably by weight be based on lubricant composition gross weight 1%-40%, preferably by weight 2% to 20% In the range of.If this other additives of lubricant composition comprising high-load, for example, lubricating grease group is based on by weight 20% to the 40% of the gross weight of compound, then lubricant composition can show the property of paste-type.Therefore, according to this Bright lubricant composition also includes paste.Other additives may also comprise on a small quantity (less than by weight based on grease composition The 3% of the gross weight of thing, the slaine of other aliphatic acid preferably smaller than 2%), but such slaine will not be substantive Upper promotion forms grease thickener.In this case, lubricant composition includes the metal of more than four kinds of different aliphatic acid Salt.Some lubricant compositions of the invention are hydroxide lubricant compositions.
The lubricant composition of the present invention may also include a small amount of metal hydroxides.Appropriate metal hydroxides includes Potassium hydroxide, aluminium hydroxide, calcium hydroxide, lithium hydroxide, NaOH, magnesium hydroxide, barium hydroxide and bismuth hydroxide.Its His appropriate additive include polypropylene, polyethylene, urea, bentonite and other lubricating grease (such as (compound) lubricating grease with PTFE/PFPE lubricating grease).
The inferior position that conventional production process is generally present is that it needs many times various components, gelling and cooling is blended Lubricant composition.Under about 1 to 5 tonnes of batch sizes, altogether possible consuming about 4 is little for boiling (gelling) and cooling technique When or it is more, and grind lubricating grease may need two hours or more.Generally, about 8 hours of overall manufacturing time cost.But It is that lubricant composition of the invention can be prepared by very short production technology, wherein mixing, gelling and cooling preferably exist Carry out in one hour, carry out more preferably within half an hour.Mechanical treatment of the invention, preferred lubricating grease grinding, to 5 Metric ton volume may need about two or two and one-half- hours.Further, it was observed that traditional lubrication fat production technology is in high temperature (scope Typically 170 DEG C to 220 DEG C) under carry out, and this lubricant composition can suitably with less than 90 DEG C (including room temperature) temperature Lower preparation.
Present invention provides the method for preparing this lubricant composition.According to the present invention, the group of this lubricant composition Dividing can be mixed with any possible order.Preferably, to hydrophilic metal oxide particle and comprising one or more insatiable hungers Mechanical treatment, heat treatment or mechanical treatment and heat treatment are carried out with one or more acid amides of C-C keys and/or at least one OH bases Both.Therefore, (a) to hydrophilic metal oxide particle or comprising one or more unsaturated C-C keys and/or at least one OH One or more acid amides of base carries out mechanical treatment and/or heat treatment；B () is to hydrophilic metal oxide particle and comprising one Or the mixture of one or more acid amides of multiple unsaturated C-C keys and/or at least one OH bases carries out mechanical treatment and/or heat Process；Or (c) is to base oil, hydrophilic metal oxide particle and comprising one or more unsaturated C-C keys and/or at least The mixture of one or more acid amides of one OH base carries out mechanical treatment and/or heat treatment.Preferably, in hydrophilic metal oxygen Compound particle, one or more acid amides and other components comprising one or more unsaturated C-C keys and/or at least one OH bases It is carried out before or after mixing mechanical treatment, heat treatment or mechanical treatment and heat treatment both.
According to the present invention, the whole amount of the base oil for being used or part basis oil can for example at one or many of technique The individual stage is added into.The appropriate embodiment of the present invention includes：
To hydrophilic metal oxide particle and comprising one or more unsaturated C-C keys and/or at least one OH bases The mixture of one or more acid amides carries out machinery and/or heat treatment, then any other addition by base oil and alternatively Agent is added in obtained mixture and carries out machinery and/or heat treatment to resulting lubricant composition.
To hydrophilic metal oxide particle and comprising one or more unsaturated C-C keys and/or at least one OH bases One or more acid amides, and alternatively appointing in aforementioned one or more aliphatic acid, the slaine of aliphatic acid, ester and/or amine A kind of what mixture carries out machinery and/or heat treatment, then any other by the remainder of base oil and alternatively to add Plus agent is added in obtained mixture and carries out machinery and/or heat treatment to resulting lubricant composition.
To hydrophilic metal oxide particle, comprising one or more unsaturated C-C keys and/or at least one OH bases one Kind or various acid amides and alternatively any one of aforementioned one or more aliphatic acid, the slaine of aliphatic acid, ester and/or amine And the mixture of base oil carries out machinery and/or heat treatment, then any other additive is added to obtained mixed Machinery and/or heat treatment are carried out in compound and to resulting lubricant composition.
To base oil, hydrophilic metal oxide particle and comprising one or more unsaturated C-C keys and/or at least one One or more acid amides of OH bases, and alternatively aforementioned one or more aliphatic acid, the slaine of aliphatic acid, ester and/or amine Any one of, and alternatively the mixture of any other additive carries out machinery and/or heat treatment.
Machinery and/or heat treatment are carried out to hydrophilic metal oxide particle, then by base oil, comprising one or more One or more acid amides of unsaturated C-C keys and/or at least one OH bases, and alternatively aforementioned one or more aliphatic acid, Any one of the slaine of aliphatic acid, ester and/or amine and alternatively any other additive be added to machinery and/or In heat treated hydrophilic metal oxide particle, and machinery and/or heat treatment are carried out to resulting lubricant composition. To one or more acid amides comprising one or more unsaturated C-C keys and/or at least one OH bases and alternatively aforementioned one kind Or any one of the slaine of various aliphatic acid, aliphatic acid, ester and/or amine carry out machinery and/or heat treatment, then by base Plinth oil, hydrophilic metal oxide particle and alternatively any other additive is added to resulting at least one metal In salt, and machinery and/or heat treatment are carried out to resulting lubricant composition.
As described above, lubricant composition may include any other additive.So other additive can be in lubrication Any stage of oil/fat composition preparation technology is added into one or more component.
In the process according to the present invention, any mixture of every kind of component or component can in any order carry out machinery And/or heat treatment.For example, all components can be added into together, and machinery and/or heat treatment are carried out afterwards.One of component (such as parent Water-based metal oxide particle) machinery and/or heat treatment can be first carried out, with latter other components (such as acid amides) or two kinds Or more kinds of other components (i.e. one or more acid amides and base oil) be introduced into mechanical and/or heat treated component In, then machinery and/or heat treatment are carried out to resulting lubricant composition.Alternatively, one of component (such as hydrophily gold Category oxide particle) machinery and/or heat treatment can be carried out first, machinery can be added to latter other components (such as acid amides) And/or in heat treated component, further machinery and/or heat treatment are carried out to resulting mixture, then will be another Kind or various other components (such as base oil and alternatively other acid amides) be added to obtained mechanical and/or heat treated Mixture in and machinery and/or heat treatment are carried out to resulting lubricant composition.An embodiment party of the invention Case, carries out first mechanical treatment, heat treatment or both mechanical treatment and heat treatment to hydrophilic metal oxide particle.Subsequently, Resulting hydrophilic metal oxide particle is with base oil and comprising one or more unsaturated C-C keys and/or at least one One or more acid amides of individual OH bases mixes to form lubricant composition.
Therefore, the present invention also relates to a kind of method for producing lubricant composition of the invention, under the method includes State consecutive steps：
A () carries out mechanical treatment, heat treatment or both mechanical treatment and heat treatment to hydrophilic metal oxide particle；With
B () is by the hydrophilic metal oxide particle for being obtained and base oil and comprising one or more unsaturated C-C keys And/or at least one OH bases the mixing of one or more acid amides forming lubricant composition.
In the situation using various acid amides, acid amides can optionally in step (a) with hydrophilic metal oxide Grain is processed together.
Another embodiment of the invention, hydrophilic metal oxide particle is first with base oil and comprising one Or one or more acid amides of multiple unsaturated C-C keys and/or at least one OH bases mixes to form lubricant composition, then Lubricant composition to being formed carries out mechanical treatment, heat treatment or both mechanical treatment and heat treatment.
Therefore, the invention further relates to a kind of method produced according to lubricant composition of the present invention, the method includes following Consecutive steps：A () is by hydrophilic metal oxide particle and base oil and comprising one or more unsaturated C-C keys and/or extremely One or more acid amides of a few OH base mixes to form lubricant composition；With
B () carries out mechanical treatment, heat treatment or both mechanical treatment and heat treatment to the lubricant composition for being obtained.Machine Tool process is preferably grinding steps, and the step can be carried out in any appropriate lapping device, such as high pressure homogenizer, colloid Mill, three-roll mill (such as three-roll mill) or turbine and worm grinding machine.Preferably, lapping device is turbine and worm lapping device.Grind Mill step can be carried out under inert conditions, i.e., without air or oxygen and/or without water (steam).Heat treatment preferably heating step Suddenly.Heating stepses are preferably directed at 30-120 DEG C, are heated in the range of more preferably 40-110 DEG C and specially 45-90 DEG C. In this heating steps, the water content of amorphous hydrophilic metal oxide particle is reduced, preferred hydrophilic metal oxide The water content of particle is less than 5% of the gross weight by weight based on hydrophilic metal oxide particle, more preferably by weight Less than 1%, even more preferably by weight less than 0.5%, even more preferably still by weight less than 0.25%.Hydrophilic metal The water content of oxide particle is typically more than 0.01% of the gross weight by weight based on hydrophilic metal oxide particle.
Most preferably, lubricant composition is prepared by：Alternatively hydrophilic metal oxide particle is carried out into heat Preferred heating stepses are processed, to reduce the water content of hydrophilic metal oxide particle, then by hydrophilic metal oxide Grain and base oil and the mixing of one or more acid amides comprising one or more unsaturated C-C keys and/or at least one OH bases To form lubricant composition, then the lubricant composition to being formed carries out mechanical treatment, preferably grinding steps.
As described above, lubricant composition of the invention includes base oil, hydrophilic metal oxide particle (more Body is silicon oxide particle) and one or more acyl comprising one or more unsaturated C-C keys and/or at least one OH bases The amount of amine, wherein slaine is by weight 0.1% to 40% based on the gross weight of lubricant composition.
Suitably, the amount of hydrophilic metal oxide particle will be by weight based on hydrophilic metal oxide particle and The 0.1%-20% of the gross weight of acid amides, preferably 1%-5% by weight.How technical staff is readily apparent that from each parent material reality Existing such amount.
Preferred embodiment of the invention, the acid amides based on hydrophilic metal oxide particle and the total amount of acid amides Total amount is being based on by weight in the range of 0.1% to the 30% of the total amount of lubricant composition, preferably 0.1% to 20% In the range of.
Lubricant composition of the invention can be used in numerous applications.However, lubricating grease group of the invention Compound is particularly used to lubricate bearing, preferably rolling bearing (such as spheric roller bearing, taper roll bearing, cylindrical roller Bearing, needle bearing and ball bearing), and also can be used to lubricate (have ball) sliding bearing or (without ball) sliding bearing.According to The lubricant composition of the present invention is non-to be usually used in shaft coupling and gear application.
Lubricant composition of the invention arrives NLGI grades comprising NLGI (National Lubricating Grease association) grade 000 NLGI grades in the range of 6.Preferably, lubricant composition of the invention has according at least the 70 of ASTM D-2265 DEG C until about 200 DEG C of dropping point.
When used in low-load gear, lubricant composition preferably has 000 to 1 NLGI grades.When high negative When carrying used in gear, lubricant composition preferably has 0 to 2 NLGI grades.When using within the bearing, grease composition Thing preferably has 1 to 4 NLGI grades, more preferably 2 or 3 NLGI grades and most preferably 2 NLGI grades.
Embodiment
In the Imperial College of Science and Technology of London, with ball-dish-type micro- hauling machine (Ball-on-disc, the Mini Traction Machine) tribology and frictional behaviour are tested to the performance of four kinds of lubricant compositions.In each case, Test process is made up of four steps, i.e. lubricating grease action step first, followed by three continuous Stribeck (this trie shellfishes Gram) step test.Two parts of lubricating grease samples in each of four kinds of lubricant compositions have carried out complete test process.Enter Row these repeat to monitor the test repeatability between two carried out under conditions of identical different tests. Before carrying out test and retest, identical ball and disk that each lubricating grease sample is used are cleaned.Entered using fresh oil fat Row test.
The purpose of lubricating grease action step be before actual test starts, in the same way and continue the identical time Shearing lubricating grease is ensureing lubricating grease and be evenly distributed and prepare identical primary condition for each test.Profit is shown in table 1 Test operation condition during consistent lubricant action step and Stribeck testing procedures.
Table 1
Lubricating grease action step (the 1st step) Stribeck steps (the 2nd, 3,4 steps)
Load (N) 1 31
Maximum Hertzian pressure [GPa] 0.31 0.96
Temperature [DEG C] 60 60
Velocity interval [mm/s] 5 (constant) 5-1000 (in the step of 50 records)
SRR [%] 0 10
Time [minute] 5 6
In four test process steps, using following operating condition.
Step 1- lubricating grease action step：To disk apply 1N ball load, produce 0.31GPa Hertz contact pressure and Constant speed is 5mm/s, maintains 5 minutes.
The continuous Stribeck steps of step 2-4- tri-：Apply the ball load of 31N to disk, produce the Hertz contact of 1GPa Pressure and when 10% sliding rolling is than (SRR), speed increases to 1000mms/s from 5mms/s.The step in triplicate with Monitor the repeatability of the step in same test and analyze the coefficient of friction produced because of lubricating grease thixotropic behavior after each step Change.
The test sample of lubricant composition of the invention is by from Scharr, the stone with 120cSt of Tunap Wax mineral mixed base oil and from Barlocher 10wt.% hydroxy stearic acid calcium, from the 2wt.% of Barlocher Calcium stearate, from Evonik 3wt.% aerosol (i.e. from Evonik the aerosol with 3wt.% it is hydrophilic Property silicon oxide particle, i.e., with 175m2/ g to 220m2The BET specific surface area of/g is with usual between 7nm to 25nm Primary particle size hydrophily silica primary granule), from M.Volkholz 1.2wt.% triphenyl phosphate, from The decanedioic acid disodium of the 2wt.% of M.Volkholz, from Ciba 0.5wt.% alkyl phosphate amine, from Ciba's The butylated triphenyl thiophosphate of 0.5wt.%, from Ciba 0.5wt.% BTA, from Ciba's The triphenylphosphorothionate of 2.5wt.%, from Elf Atochem 2wt.% two tertiary dodecyl polysulfides and Prepare from the oleamide of the 10wt.% of Croda.Lubricating grease is by the addition in 3 roller mills, mixing and grinds altogether 30 Minute is constituted.
For the sake of comparing, the present invention lubricant composition and three kinds with following compositions carry out with reference to lubricating grease Relatively：
(a) lubricant composition Li-1, including mineral base oil and the lithium salts as grease thickener, and with 40 100mm at DEG C2The viscosity of/s；
(b) lubricant composition Li-2, including mineral base oil and the lithium salts as grease thickener, and with 40 200mm at DEG C2The viscosity of/s；
(c) lubricant composition CaSX-1, including the base oil blend and conduct lubrication of mineral and synthesis PAO base oils The sulfoacid calcium and calcium salt of fat thickening agent, and with 80mm at 40 DEG C2The viscosity of/s.
In FIG, the result of four kinds of lubricant compositions is compared to each other, and be this show and is obtained on MTM apparatuses Stribeck coefficient of frictions and Entrainment Velocity (entrainment speed) [mms-1] measurement value.Volume is shown in figure Boundary lubrication area, mixed lubrication area and full-film lubrication area in suction velocity interval.
It is clear that lubricant composition of the invention is compared wherein using the lubricating grease of conventional thickening agent from Fig. 1 The comparing embodiment of composition makes remarkable progress.In this regard, observed according to the present invention, all in three lubrication areas Stribeck coefficient of frictions are much smaller than traditional lubrication oil/fat composition.

Claims (14)

1. a kind of lubricant composition, comprising base oil and thickening agent, the thickening agent includes hydrophilic metal oxide particle With one or more acid amides comprising one or more unsaturated C-C keys and/or at least one OH bases, wherein the hydrophily is golden Category oxide particle has at least 10m2The BET specific surface area of/g and at least 80% hydrophilic metal oxide particle Granularity in the range of 5nm to 900 μm, and the amount of wherein described thickening agent by weight be based on the grease composition In the range of the 0.1%-40% of the gross weight of thing.
2. lubricant composition according to claim 1, wherein one or more acid amides comprising one or more not Saturation C-C key and at least one OH bases.
3. lubricant composition according to claim 1, wherein one or more acid amides comprising one or more not Saturation C-C key.
4. lubricant composition according to claim 1, wherein one or more acid amides includes at least one OH bases.
5. lubricant composition according to claim 1, wherein one or more acid amides comprising one or more not Saturation C-C key and at least two OH bases.
6. lubricant composition according to claim 1, wherein one or more acid amides includes two or more Unsaturated C-C keys.
7. the lubricant composition according to any one of claim 1 to 6, wherein one or more acid amides is fat Sour acid amides.
8. the lubricant composition according to any one of claim 1 to 7, wherein one or more acid amides is metal Salt.
9. the lubricant composition according to any one of claim 1 to 8, additionally comprises the gold of one or more aliphatic acid Category salt.
10. the lubricant composition according to any one of claim 1 to 9, additionally comprises one or more metal sulfamate Salt, metal sulfate, metal phosphate and/or metal phosphinate hydrochlorate.
11. lubricant compositions according to any one of claim 1 to 10, wherein the metal oxide is oxidation Silicon.
12. lubricant compositions according to claim 11, wherein the silica is unbodied fused silica.
A kind of 13. methods of the lubricant composition for manufacture according to any one of claim 1 to 12, methods described Including with any possible order by the base oil, the hydrophilic metal oxide particle and comprising one or more not One or more acid amides mixing of saturation C-C key and/or at least one OH bases；Before mixing or afterwards, to described Hydrophilic metal oxide particle, the described one kind or many comprising one or more unsaturated C-C keys and/or at least one OH bases Planting acid amides carries out mechanical treatment, heat treatment or both mechanical treatment and heat treatment.
14. lubricant compositions according to any one of claim 1 to 12 are used to lubricate bearing, gear or shaft coupling Purposes.
CN201580049460.6A 2014-10-31 2015-10-30 Grease compositions Pending CN106687570A (en)

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Application publication date: 20170517