CN106147957B - A kind of lubricant oil composite and preparation method thereof - Google Patents

A kind of lubricant oil composite and preparation method thereof Download PDF

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Publication number
CN106147957B
CN106147957B CN201510189138.5A CN201510189138A CN106147957B CN 106147957 B CN106147957 B CN 106147957B CN 201510189138 A CN201510189138 A CN 201510189138A CN 106147957 B CN106147957 B CN 106147957B
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nitrile rubber
rubber particle
base oil
dispersed
lubricant oil
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CN106147957A (en
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张晓红
蔡传伦
赖金梅
乔金樑
宋志海
戚桂村
李秉海
王湘
高建明
张红彬
蒋海斌
何谷
茹越
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Sinopec Beijing Research Institute of Chemical Industry
China Petroleum and Chemical Corp
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Sinopec Beijing Research Institute of Chemical Industry
China Petroleum and Chemical Corp
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Abstract

The present invention relates to lubricating oil field, a kind of lubricant oil composite and preparation method thereof is specifically provided.The nitrile rubber particle with cross-linked structure prepared by cross-linking radiation method that the lubricant oil composite contains base oil and is dispersed in the base oil, the base oil is continuous phase, the nitrile rubber particle is dispersed phase, and the base oil relative to 100 parts by weight, the content of the nitrile rubber particle are 0.005-10 parts by weight.Lubricant oil composite provided by the invention has good viscosity temperature characteristic and ageing-resistant performance, compared with the lubricant oil composite containing the nitrile rubber particle by chemical crosslinking, viscosity is lower at low temperature for it, and viscosity is higher at high temperature, can satisfy the requirement that temperature reaches 200 DEG C or more occasions.

Description

A kind of lubricant oil composite and preparation method thereof
Technical field
It is prepared the present invention relates to a kind of lubricant oil composite, the preparation method of the lubricant oil composite and by this method Obtained lubricant oil composite.
Background technique
Nano material refers to the solid material that the ultrafine dust by size less than 100 nanometers forms.Since it has size Effect, quantum effect, skin effect and interfacial effect, to have performance not available for traditional material.With nano material Rise and preparation method it is increasingly mature, it has been found that nano material have fabulous frictional behaviour.Made using nanoparticle It can make lubricating oil that there is good greasy property for lube oil additive, it not only can form one layer of easily shearing in friction surface Film, and a degree of filling and reparation can be carried out to friction surface, play good lubricating action.
There is the report of the largely application about inorganic nano-particle in lubricating oil field in the prior art.For example, CN1150958A discloses a kind of Low-density high temperature resistant wear-resistant self-lubricating nano particle filling enhancing polymer composite, by Thermoplasticity heat-resistant polymer and nanoparticle composition, the nanoparticle includes nano-silicon nitride, nanometer silicon carbide and nanometer Silica, the product have excellent self-lubricating property.CN1301319C discloses one kind and contains nano silicon dioxide particles Lubricant oil composite, which is lubricating oil extreme pressure, the antiwear composite of a kind of function admirable, the technical solution Use in a manner of base oil and nano silica and addition dispersing aid and synergist that realize nano silica micro- The dispersion of grain.CN1180079A and CN1354056A individually discloses receiving through fatty acid modifying metallic oxide or hydroxide The application of rice micro mist and warp containing the organic compound modified metal copper nano granules of thio phosphorus in lubricating oil field. CN1827753A discloses a kind of fluorine-containing rare earth nano lubricating oil additive and preparation method thereof, the additive include base oil with And the surface coated rare earth fluoride nanoparticle of itrogenous organic substance.CN101058760A disclose a kind of nano ceramic lubricating oil and Preparation method, the ingredient containing traditional lubrication oil, and modified Nano ceramics are added on the basis of traditional lubrication oil Grain belongs to the preparation field that mechanical movement lubricates oil medium, especially suitable for lubricating oil used in automobile industry and its Preparation method.In the invention, the concentrate of the nano-ceramic particle of stable dispersion is successfully made by pre-dispersed method, in turn Prepare the nano ceramics machine oil that nano-ceramic particle weight percentage is 0.00001%-5%.CN101235337B is disclosed A kind of slipper or sliding component suitable for car combustion engine or power transmitting apparatus is to significantly reduce coefficient of friction Lubricant oil composite, the lubricant oil composite contain lubricating oil base oil, oxygen-containing organic compound, diamond nano-particles and Diamond nano-particles dispersing agent.CN101555430A discloses a kind of lubricant oil composite, containing oil base stock and receives Rice carbon ball, the nano carbon microsphere surface grafting have alkyl, are scattered in it in oil base stock, and the nano carbon microsphere is hollow structure Or it is filled with metal, metal alloy, metal oxide, metal carbides, metal sulfide, metal nitride or metal diboride Object.
In addition, there are also the answering in lubricating oil field about organic fine particles gel other than inorganic nano-particle Report.For example, Rhein Chemie Rheinau GmbH application patent CN1856527A, CN1840622A and CN1861673A discloses the micro gel of a kind of micro gel in non-crosslinkable organic media and crosslinking for changing The purposes of the temperature-independent performance of the non-crosslinked organic media of property.However, this several patents application is pointed out bar none, institute State micro gel and be by the way of chemical crosslinking (for example, by with polyfunctional compound's crosslinking copolymerization or pass through peroxide Compound crosslinking) micro gel that is prepared, rather than the micro gel being crosslinked with high-energy radiation.Above-mentioned patent application thinks high The micro gel of energy crosslinking with radiation is actually unable in be prepared on an industrial scale, and the use of the high-energy radiation of radioactivity cobalt source is with tight The safety problem of weight, the and when micro gel of crosslinking with radiation is used in plastic matrix, can be between matrix and dispersed phase Tearing effect occurs, to compromise the mechanical performance of the plastics containing the micro gel, swelling behavior, stress corrosion cracking Energy is equal.However, in patent CN1856527A, CN1840622A and CN1861673A of Rhein Chemie Rheinau GmbH's application The viscosity temperature characteristic of disclosed lubricant oil composite is poor, and the viscosity of the lubricant oil composite can sharply increase with the reduction of temperature Greatly, it can strongly reduce as the temperature rises, but viscosity is excessive at low temperature or viscosity is too small unfavorable at high temperature With the application of lubricant oil composite, this will greatly limit the application of the lubricant oil composite.Therefore, it needs to develop A kind of lubricant oil composite with preferable viscosity temperature characteristic.
Summary of the invention
The defect that the purpose of the invention is to overcome existing lubricant oil composite viscosity temperature characteristic poor, and one kind is provided It the preparation method of lubricant oil composite, a kind of lubricant oil composite with excellent viscosity temperature characteristic and is prepared by this method Lubricant oil composite.
The present inventor has found that Rhein Chemie Rheinau GmbH applies several above-mentioned after further investigation Dispersed phase in lubricant oil composite disclosed in patent CN1856527A, CN1840622A and CN1861673A is using multifunctional The micro gel that compound or peroxide are obtained by chemical crosslinking mode, although the lubricating oil composition containing the microgel particle Object can reduce the coefficient of friction of organic media to a certain extent, but the viscosity of these lubricant oil composites is by the shadow of temperature Sound is larger, and temperature too high (viscosity is too small) or too low (viscosity is too big) will limit the use of the lubricant oil composite, applicable for temperature It is relatively narrow to spend range.And the rubber particles with cross-linked structure that are prepared by cross-linking radiation method and by using multifunctional chemical combination The rubber particles with cross-linked structure that object or peroxide carry out chemical crosslinking preparation have entirely different microstructure.When It is right when dispersed phase in lubricant oil composite is the nitrile rubber particle with cross-linked structure prepared by cross-linking radiation method The lubricant oil composite answered has good viscosity temperature characteristic, very well can adjust viscosity with the variation of temperature, reduces Low temperature viscosity simultaneously improves high temperature viscosity, therefore, can largely make up variation shadow caused by viscosity as temperature It rings.In addition, high-energy radiation actually very cleaning, the safe and efficient energy, at present by many developed countries widely It is that there are some using Chemical Crosslinking Methods (peroxide) instead for fields such as health care, food processing, industrial productions Very important problem, such as the environmental pollution that production efficiency is not high, peroxide is remained and be may cause, these can all be limited Make its application.Based on this, the present invention is completed.
Specifically, the present invention provides a kind of lubricant oil composites, wherein the lubricant oil composite contain base oil and The nitrile rubber particle with cross-linked structure prepared by cross-linking radiation method being dispersed in the base oil, the basis Oil is continuous phase, and the nitrile rubber particle is dispersed phase, and the base oil relative to 100 parts by weight, the butyronitrile rubber The content of micelle is 0.005-10 parts by weight.
The present invention also provides a kind of preparation method of lubricant oil composite, this method is by base oil and passes through cross-linking radiation The nitrile rubber particle to be dispersed with cross-linked structure of method preparation is mixed and is dispersed, and relative to 100 parts by weight The base oil, the dosage of the nitrile rubber particle to be dispersed are 0.005-10 parts by weight.
The present invention also provides lubricant oil composites prepared by the above method.
Lubricant oil composite provided by the invention can effectively adjust viscosity with the variation of temperature, with contain passing through The lubricant oil composite for learning the nitrile rubber particle of crosslinking is compared, and viscosity is lower at low temperature, and viscosity is higher at high temperature, And its viscosity index (VI) is larger, can satisfy the requirement that temperature reaches 200 DEG C or more occasions and has therefore significantly widened this The use temperature range of lubricant oil composite.The lubricant oil composite can be used for blends engine oil, gear oil, hydraulic oil etc. its His hot industry is oily, poor based on double ring arene, polycyclic aromatic hydrocarbon and non-hydrocarbons base oil suitable for adjusting viscosity temperature characteristic The viscosity temperature characteristic of the lubricating composition of component is wanted, can have been provided according to the demand in different operating place, easy adjustment different viscous The lubricating oil of warm nature energy.
Since cross-linking radiation makes special construction possessed by rubber particles, lubricant oil composite provided by the invention it is resistance to old Change is had excellent performance, not easy to change, therefore this lubricant oil composite can be used as the lubricating oil haveing excellent performance and use, and especially answer For the field more demanding to the viscosity temperature characteristic, ageing properties and frictional behaviour that lubricate oil systems, such as engine oil.
In addition, the powder nbr rubber particles of cross-linking radiation method preparation are because crosslinking is more uniform, particle diameter distribution is narrower, It is evenly dispersed to be easier to reach nanoscale in base oil, even if when its specific gravity in lubricant oil composite is higher (5 weight %) When also can be well dispersed.And it is limited to hand over when being chemically crosslinked by using crosslinking agent (polyfunctional compound or peroxide) Connection agent is dissolved in rubber latex and diffusivity, is extremely difficult to the crosslinking degree of substantially uniformity, causes the rubber particles of crosslinking There are larger differences for size, so it disperses more difficulty in base oil, for example, when its specific gravity in lubricant oil composite reaches When to 3 weight %, the lubricant oil composite of preparation is easy to appear the lamination of part, this is the table of larger rubber particles sedimentation It is existing, decline lubricant compositions viscosity temperature characteristic.In addition, continuing growing chemical crosslinking nitrile rubber particle specific gravity to 5 When weight %, the lubricant oil composite of preparation then can not through the invention technique carry out it is evenly dispersed, the reason is that uneven crosslinking Blocking and damage equipment are very easy to the rubber particles of larger size.
Other features and advantages of the present invention will the following detailed description will be given in the detailed implementation section.
Detailed description of the invention
The drawings are intended to provide a further understanding of the invention, and constitutes part of specification, with following tool Body embodiment is used to explain the present invention together, but is not construed as limiting the invention.In the accompanying drawings:
Fig. 1 is a kind of infrared spectrogram of nitrile rubber particle provided by the invention.
Specific embodiment
Detailed description of the preferred embodiments below.It should be understood that described herein specific Embodiment is merely to illustrate and explain the present invention, and is not intended to restrict the invention.
Lubricant oil composite provided by the invention, which contains base oil and is dispersed in the base oil, passes through cross-linking radiation The nitrile rubber particle with cross-linked structure of method preparation, the base oil are continuous phase, and the nitrile rubber particle is point Dephasing, and the base oil relative to 100 parts by weight, the content of the nitrile rubber particle are 0.005-10 parts by weight.Its In, the nitrile rubber particle is in stable dispersion state in base oil.
The lubricant oil composite provided according to the present invention, as discussed previously with respect to the base oil of 100 parts by weight, institute The content for stating nitrile rubber particle is 0.005-10 parts by weight, but in order to enable base oil and nitrile rubber particle play preferably Coordinated effect, and so that the lubricant oil composite arrived has better viscosity temperature characteristic, it is preferable that relative to 100 weights The base oil of part is measured, the content of the nitrile rubber particle is 0.1-8 parts by weight, more preferably 0.5-6 parts by weight.
The lubricant oil composite provided according to the present invention, it is preferable that the average grain diameter of the nitrile rubber particle is 20- 2000nm, more preferably 50-1000nm, particularly preferably 70-500nm.When by the average grain diameter control of the nitrile rubber particle When making within the above range, the viscosity of lubricant oil composite can be more effectively adjusted, there is better temperature pumping and flowing Performance, is conducive to the cold start-up of mechanical equipment, and is also beneficial to form thicker oil film at high temperature, reduces mantle friction, that is, It is suitable for broader use temperature range.
The lubricant oil composite provided according to the present invention, it is preferable that the gel content of the nitrile rubber particle is 60 weights Measure % or more, more preferably 75 weight % or more, particularly preferably 80 weight % or more.When coagulating the nitrile rubber particle When glue content is controlled within the above range, the viscosity of lubricant oil composite can be more effectively adjusted with the variation of temperature, it can Adapt to broader use temperature range.In the present invention, the gel content is this field for characterizing rubber cross degree A kind of Common Parameters, measure according to method disclosed in CN1402752A.
In the present invention, the nitrile rubber particle can be the unmodified rubber obtained by butadiene and acrylonitrile compolymer Particle, or the modified rubber particle that butadiene and acrylonitrile and other olefin-copolymerizations obtain.Wherein, other described alkene The type of hydrocarbon can be selected according to the composition of target nitrile rubber particle, can be known to this those skilled in the art, This is not repeated.It is preferably containing carboxyl and/or ester group when the nitrile rubber particle is modified butadiene acrylonitrile rubber particle Modified butadiene acrylonitrile rubber particle is (that is, the nitrile rubber particle is by butadiene, acrylonitrile and alkene containing carboxyl and/or ester group Hydrocarbon is copolymerized to obtain), for example, carboxy nitrile rubber particle.In the nitrile rubber particle, the content of acrylonitrile unit member can Think 1-70 weight %, preferably 5-70 weight %.
In addition, nitrile rubber particle provided by the invention is preferably equal phase structure.In the present invention, described " equal phase structure " Refer to and observe under existing microtechnic do not have to find the not homogeneous phenomenons such as layering, split-phase in nitrile rubber particle.
The lubricant oil composite provided according to the present invention, high-energy ray source used in the cross-linking radiation can be selected from cobalt At least one of source, ultraviolet, high-energy electron accelerator, it is preferable that the wavelength in the high-energy ray source less than 0.1 μm, such as For cobalt source.In addition, under normal circumstances, the dosage of irradiation should make the gel of the nitrile rubber particle after rubber latex cross-linking radiation Content reaches 60 weight % or more, preferably reaches 75 weight % or more, more preferably up to 80 weight % or more.Specifically, it irradiates Dosage can be 0.1-30Mrad, preferably 0.5-20Mrad.
The present invention is not particularly limited the type of the base oil, can be mineral base oil, or synthesis Base oil can also be the mixture of both the above base oil.
It includes: that low viscosity refers to that the mineral base oil, which divide according to China base oil classification standard QSHR 001-95, Number mineral base oil (viscosity index (VI) VI≤40), medium viscosity index mineral base oil (40 < viscosity index (VI) VI≤90), high viscosity Index mineral base oil (90 < viscosity index (VI) VI≤120), very high viscosity index (HVI) mineral base oil (120 < viscosity index (VI) VI≤ And superhigh viscosity index mineral base oil (viscosity index (VI) VI > 140) five class base oils 140).And according to GB/T1995-1998 state Family's standard " oil product viscosity index (VI) calculating method " is defined, and viscosity index (VI) (VI) indicates that oil viscosity varies with temperature this spy The about quantitative values of one of sign.For oil product similar in kinematic viscosity, viscosity index (VI) is higher, indicates that oil viscosity varies with temperature more It is small.Specifically, the mineral base oil mainly includes alkane, cycloalkane, aromatic hydrocarbons, cycloalkanes aromatic hydrocarbons and oxygen-containing, nitrogenous, sulfur-bearing is organic The non-hydrocarbon compounds such as compound and colloid, asphalitine, wherein almost without alkene.The mineral base oil can be by crude oil The mixture of middle higher boiling, the hydro carbons of high relative molecular mass and non-hydrocarbons by air-distillation/vacuum distillation, solvent refining, The techniques such as dewaxing, depitching are made.From the point of view of mineral base oil distillate, hydro carbons carbon number distribution is generally C20-C40, boiling point model About 300-550 DEG C is enclosed, relative molecular mass is 250-1000 or higher.
The synthetic base oil is prepared using methodology of organic synthesis, has and stablize chemical structure and particularity The lubricating oil of energy.The synthetic base oil is selected from synthesis hydrocarbon, alkylaromatic hydrocarbon, synthetic ester, polyethers, halogenated hydrocarbons, polysiloxanes and contains At least one of fluorocarbon oil.The synthetic base oil of above-mentioned each type can be single pure material or the mixing being made of homologue Object.Wherein, the synthesis hydrocarbon is selected from ethylene low polymer, propylene oligomer, polybutene, polyisobutene, poly alpha olefin (PAO), gathers At least one of the halogenated product of internal olefin and above-mentioned synthesis hydrocarbon.Wherein, the poly alpha olefin do not include ethylene low polymer, Propylene oligomer and poly 1-butene.The alkylaromatic hydrocarbon is selected from alkylbenzene, alkylnaphthalene and contains hetero atom (oxygen, sulphur, halogen Deng) at least one of alkylaromatic hydrocarbon.The synthetic ester is selected from monoesters, dibasic acid esters, polyol ester, polymer esters, carbonic ester, phosphorus At least one of acid esters, citrate, esters of silicon acis and olefin-acrylic lipin polymer.The polyethers is selected from aliphatic At least one of polyethers, polyphenylene oxide, poly- polythiaether and perfluoroalkyl polyethers.The polysiloxanes is selected from two polysiloxanes, three At least one of polysiloxanes, four polysiloxanes, eight polysiloxanes and the poly- tetrasiloxane of ring.
In addition, lubricant oil composite provided by the invention can also contain common additive.The type of the additive Including but not limited to: anti-aging agent, antiwear additive, antilubricant, antioxidant, anti-foaming agent, antirust agent, detersive, dispersing agent, pigment, pole Press at least one of composition, friction protection composition, detersive, coupling agent etc..The dosage of the additive can be this The conventional selection in field can know that therefore not to repeat here to this those skilled in the art.
The preparation method of lubricant oil composite provided by the invention includes preparing by base oil and by cross-linking radiation method The nitrile rubber particle to be dispersed with cross-linked structure mixed and dispersed, and the basis relative to 100 parts by weight Oil, the dosage of the nitrile rubber particle to be dispersed are 0.005-10 parts by weight.
The preparation method of the lubricant oil composite provided according to the present invention, as discussed previously with respect to described in 100 parts by weight Base oil, the dosage of the nitrile rubber particle to be dispersed are 0.005-10 parts by weight, but in order to enable base oil and wait disperse Nitrile rubber particle plays the role of better coordinated, and so that the lubricant oil composite arrived has preferably viscous warm nature It can, it is preferable that relative to the base oil of 100 parts by weight, the dosage of the nitrile rubber particle to be dispersed is 0.1-8 weight Part, particularly preferably 0.5-6 parts by weight.
The preparation method of the lubricant oil composite provided according to the present invention, it is preferable that the nitrile rubber particle to be dispersed For the nitrile rubber particle cluster for by average grain diameter being 20-2000nm, more preferably 50-1000nm, particularly preferably 70-500nm Poly- and formation rubber particles group.After the nitrile rubber particle to be dispersed is dispersed in base oil, the butyronitrile of reunion Rubber particles can be dispersed well, thus with 20-2000nm, preferably with 50-1000nm, more preferably with 70-500nm's Average particle size distribution is in base oil.In addition, the average grain diameter of the nitrile rubber particle to be dispersed is preferably 20-2000nm, More preferably 50-1000nm, particularly preferably 70-500nm.
The preparation method of the lubricant oil composite provided according to the present invention, it is preferable that the nitrile rubber particle to be dispersed Gel content be 60 weight % or more, more preferably 75 weight % or more, particularly preferably 80 weight % or more.When will be described When gel content wait disperse nitrile rubber particle controls within the above range, can more effectively it be adjusted with the variation of temperature The viscosity of lubricant oil composite is suitable for broader use temperature range.
The nitrile rubber particle to be dispersed is preferably equal phase structure.In the present invention, described " equal phase structure " refers to It is observed under existing microtechnic, does not have to find the not homogeneous phenomenons such as layering, split-phase in nitrile rubber particle to be dispersed.
The nitrile rubber particle to be dispersed can be to pass through cross-linking radiation system by Butadiene and Acrylonitrile copolymer lotion It is standby and obtain after being dried by spray drying process wait disperse unmodified nitrile rubber particle, or butadiene and acrylonitrile And other olefin copolymer lotions are prepared by cross-linking radiation and by being obtained after spray drying process drying to disperse modified Nitrile rubber particle.Wherein, the type of other alkene can be carried out according to the composition of target nitrile rubber particle to be dispersed Selection, can know this those skilled in the art, therefore not to repeat here.When the nitrile rubber particle to be dispersed is wait disperse When modified butadiene acrylonitrile rubber particle, preferably containing carboxyl and/or ester group to disperse modified nitrile rubber particle (that is, described Nitrile rubber particle to be dispersed passes through spoke by butadiene, acrylonitrile and olefin copolymer lotion containing carboxyl and/or ester group Prepare according to crosslinking and obtained by spray drying), for example, carboxy nitrile rubber particle to be dispersed.
In the preparation process of the nitrile rubber particle to be dispersed, high-energy ray source used in cross-linking radiation specifically can be with Selected from least one of cobalt source, ultraviolet, high-energy electron accelerator, it is preferable that the wavelength in the high-energy ray source is less than 0.1 μ M, for example, cobalt source.In addition, under normal circumstances, the dosage of irradiation should make the nitrile rubber particle after rubber latex cross-linking radiation Gel content reach 60 weight % or more, preferably reach 75 weight % or more, more preferably up to 80 weight % or more.Specifically Ground, the dosage of irradiation can be 0.1-30Mrad, preferably 0.5-20Mrad.
The nitrile rubber particle to be dispersed can be commercially available, can also be according to various well known to art technology Method is prepared.For example, the nitrile rubber particle to be dispersed can be applicant according to the invention in September 18 in 2000 The international patent application WO01/40356 (priority date on December 3rd, 1999) and applicant of the present invention that day submits are in 2001 Method disclosed in the international patent application WO01/98395 (priority date on June 15th, 2000) that on June 15, in submits is prepared into The powder nbr rubber particles arrived.By above method preparation without adding interleaving agent after dispersing nitrile rubber particle and being drying I.e. free flowable rubber micro mist, wherein each rubber particle is homogeneous, i.e., single particle is all equal in composition Matter, do not have to find the not homogeneous phenomenons such as layering, split-phase in particle under the observation of existing microtechnic.The powdered rubber is The partial size of rubber particles is able to fixation and by corresponding rubber latex cross-linking radiation.
In addition, cross-linking aid can not be used in the cross-linking radiation preparation process of the nitrile rubber particle to be dispersed, Also cross-linking aid can be used.The cross-linking aid can be selected from simple function group cross-linking aid, two functional group's cross-linking aids, three officials Cross-linking aid, any one in the above cross-linking aid of four-functional group cross-linking aid and five functional groups can be rolled into a ball.The simple function group The example of cross-linking aid includes but is not limited to: (methyl) 2-ethyl hexyl acrylate, (methyl) Isooctyl acrylate monomer, the contracting of (methyl) acrylic acid At least one of water glyceride;The example of two functional group cross-linking aid includes but is not limited to: two (first of 1,4- butanediol Base) acrylate, 1,6-hexylene glycols two (methyl) acrylate, diethylene glycol two (methyl) acrylate, two (first of triethylene glycol Base) acrylate, neopentyl glycol two (methyl) acrylate, at least one of divinylbenzene;The trifunctional crosslinking The example of auxiliary agent includes but is not limited to: trimethylolpropane tris (methyl) acrylate and/or pentaerythrite three (methyl) propylene Acid esters;The example of the four-functional group cross-linking aid includes but is not limited to: pentaerythrite four (methyl) acrylate and/or ethoxy Change pentaerythrite four (methyl) acrylate;The example of the above cross-linking aid of five functional groups includes but is not limited to: two seasons penta Tetrol five (methyl) acrylate.Herein, described (methyl) acrylate refers to acrylate or methacrylate.This A little cross-linking aids can be applied in combination in any way, as long as they facilitate crosslinking under irradiation.In addition, the crosslinking The additional amount of auxiliary agent is generally the 0.1-10 weight % of dry glue weight in latex, preferably 0.5-9 weight %, more preferably 0.7- 7 weight %.
In addition, the preparation method of lubricant oil composite provided by the invention can also include by additive and base oil and to Dispersion nitrile rubber particle is mixed and is dispersed together.
The type of the base oil and additive has been described herein above, and therefore not to repeat here.
The present invention is not particularly limited the mode of the mixing and redisperse, as long as enabling to the fourth to be dispersed Nitrile rubber particle is effectively dispersed in base oil, to obtain using base oil as continuous phase and be point with nitrile rubber particle The lubricant oil composite of dephasing.A preferred embodiment of the invention, the mixing and the mode dispersed include:
(1) the nitrile rubber particle to be dispersed is added in the base oil and is mixed by mechanical stirring, so that institute It states nitrile rubber particle dispersion to be dispersed or is suspended in the base oil, the composition tentatively dispersed;
(2) composition tentatively dispersed is subjected to redisperse, until the average grain of the nitrile rubber particle after dispersion Diameter reach 20-2000nm in the range of, preferably reach 50-1000nm in the range of, in the range of more preferably up to 70-500nm. Pass through this preferred mixing and enable to nitrile rubber particle to be dispersed in base oil with initial size by way of dispersing, obtains The viscosity temperature characteristic of the lubricant oil composite arrived is more preferably.
According to another preferred method of implementation of the present invention, the preparation method of the lubricant oil composite further includes step (3), product step (2) obtained not less than 80 DEG C at a temperature of, preferably not less than 100 DEG C at a temperature of, more preferably It places at least 1 hour, preferably places at least 2 hours at 100-200 DEG C, more preferably place at least 4 hours, most preferably placement 4- Obtained product is subjected to secondary redisperse after 10 hours, the nitrile rubber particle of crosslinking and base oil is enabled to fill in this way Sub-dip is moistened and is swollen, and nitrile rubber particle with smaller particle size dispersion in base oil, so that it is more preferable to obtain viscosity temperature characteristic Lubricant oil composite.In addition, in step (3), by the product of step (2) not less than 80 DEG C at a temperature of to place at least 1 small When during, can cooperate and accomplished continuously or intermittently stir, so that stirring material is heated more evenly.
The mixing of mechanical stirring described in step (1) can carry out in existing various mechanical mixing equipments, for example, can To be carried out in the mechanical mixing equipments such as high-speed mixer, kneader.The present invention does not have the condition that the mechanical stirring mixes yet Have and particularly limit, if make the nitrile rubber particle to be dispersed with cross-linked structure prepared by cross-linking radiation method with Under the premise of the performance of base oil does not have any variation, make to prepare by cross-linking radiation method with cross-linked structure wait disperse Nitrile rubber particle disperses or is suspended in base oil, can know to this those skilled in the art, therefore not to repeat here.
The preparation method of the lubricant oil composite provided according to the present invention, redisperse and step described in step (2) (3) the secondary redisperse described in can be squeezed out in homogenizer, bead mill, three-roll grinder, single screw rod each independently It carries out at least one of machine, multi-screw extruder, kneader, dissolvers and ultrasonic disperser mixing apparatus, preferably exists It is carried out in homogenizer, three-roll grinder and ultrasonic disperser, these three preferred mixing apparatus have processing output height, mixing The advantage that effect is good, subsequent cleaning is fairly simple.Most preferably, secondary in the redisperse and step (3) in step (2) divides again It is dispersed in homogenizer and carries out.In dispersion process, according to different dispersion quality requirements, need by cycles samples cooling, then instead Repeatedly dispersed by mixing apparatus again, until the average grain diameter for the nitrile rubber particle being dispersed in base oil reaches 20- Within the scope of 2000nm, preferably reach within the scope of 50-1000nm, within the scope of more preferable 70-500nm.In addition, the present invention to it is described again The condition of dispersion and secondary redisperse is not particularly limited, as long as making base oil and nitrile rubber particle in dispersion process Performance is not destroyed, and the partial size of nitrile rubber particle is made to reach 20-2000nm, preferably reaches 50-1000nm, more preferably Reach 70-500nm, this those skilled in the art can be known, therefore not to repeat here.
It, specifically can be in addition, placement described in step (3) preferably carries out in existing various airtight heating equipment It is carried out in high temperature oven, vacuum high-temperature baking oven, heating kettle or similar airtight heating container, heat treatment efficiency can be improved in this way, It is energy saving, while the contact of base oil and nitrile rubber particle with air (oxygen) can also be reduced, thermal oxide degree is reduced, Properties of product are made to keep stablizing.
The present invention also provides lubricant oil composites prepared by the above method.
The present invention will be described in detail by way of examples below.
(1) raw material used in embodiment and comparative example is as follows:
Mineral base oil, Sinopec production, trade mark Ib150, viscosity at 40 DEG C is 32.6mm2/ s, viscosity index (VI) It is 90.
Synthetic base oil, Sinopec production, trade mark PAO-4, poly alpha olefin, viscosity at 40 DEG C are 17.2mm2/ s, Viscosity index (VI) is 106.
Nitrile rubber particle to be dispersed, Sinopec production, trade mark VP401, average grain diameter 100nm, gel content It for 90 weight %, observes, should be layered in nitrile rubber particle to be dispersed without discovery, noted phase separation phenomena, butyronitrile under the microscope Rubber latex carries out cross-linking radiation method preparation using cobalt source and is obtained by spray drying process.The nitrile rubber particle it is red External spectrum figure is shown in Fig. 1.It will be seen from figure 1 that 2240cm-1Place is the characteristic absorption peak of acrylonitrile unit member;920cm-1、 970cm-1Etc. be butadiene structural units characteristic absorption peak;1450cm-1Place is the characteristic absorption of styrol structural unit Peak.
Peroxide crosslinking nitrile rubber particle prepare and using spray according to method disclosed in patent CN1840622A Mist drying means obtains, rubber latex be acrylonitrile-butadiene rubber latex (with prepare rubber used by nitrile rubber particle VP401 to be dispersed The composition of latex solution is identical), the crosslinking agent used is cumyl peroxide (DCP), the peroxide crosslinking fourth finally obtained The average grain diameter of nitrile rubber particle is 100nm, and gel content is 90 weight %.
(2) the following instrument and equipment of the experimental data in embodiment and comparative example and measuring method measurement:
(1) kinematic viscosity: according to GB/T265-1998 " oil product kinematic viscosity measuring method and dynamic viscosity calculating method " The method that standard provides is measured using standard glass capillaries method, tests the kinematic viscosity at 40 DEG C, 100 DEG C respectively;
(2) it viscosity index (VI) (VI): is measured according to GB/T1995-1998 " oil product viscosity index (VI) calculating method ", including A Method, B method, as VI < 100, viscosity index (VI) is calculated using A method:
Specifically, VI=[(L-H)]/[(L-U)] × 100
Wherein, L is identical as kinematic viscosity of the sample at 100 DEG C, movement of the oil product that viscosity index (VI) is 0 at 40 DEG C Viscosity, mm2/s;H is, oil product that viscosity index (VI) be 100 movement at 40 DEG C identical as kinematic viscosity of the sample at 100 DEG C Viscosity, mm2/s;U is kinematic viscosity of the sample at 40 DEG C, mm2/s。
As VI >=100, viscosity index (VI) is calculated using B method:
Specifically, VI={ [(anti logN-1)/0.00715] }+100
Wherein, N=(logH-logU)/logY, U are kinematic viscosity of the sample at 40 DEG C, mm2/s;Y is sample 100 DEG C when kinematic viscosity, mm2/s;Kinematic viscosity when H is with 100 DEG C of sample is identical, and the oil product that viscosity index (VI) is 100 is at 40 DEG C When kinematic viscosity, mm2/s;Anti logN refers to the inverse function of logN.
(3) change colour index (IC): complete using TCP2 series according to HG/T3862-2006 " plastics yellow colour index test method " Automatic colour examining colour-difference-metre test calculates the yellow colour index (YI) of lubricant oil composite according to following formula:
YI=100 (1.28X-1.06Z)/Y, wherein X, Y, Z are respectively the tristimulus values measured under standard illuminant-C.Definition The discoloration index (IC) of lubricant oil composite is
IC=YI150/YI25
Wherein YI150Be lubricant after hot test (150 DEG C keep 4 hours) yellow colour index, YI25It is that lubricant exists The yellow colour index of (25 DEG C) under room temperature, IC value can intuitively reflect the high temperature resistant and ageing-resistant performance of lubricant oil composite.
Embodiment 1
The embodiment is for illustrating lubricant oil composite provided by the invention and preparation method thereof.
By 100 parts by weight mineral base oil Ib150 and 0.5 parts by weight nitrile rubber particle VP401 to be dispersed is mixed and machine Tool stirs evenly, and then homogenizing circulation four times in high pressure homogenizer, homogenization pressure 100MPa, every circulation primary all passes through water Bath is cooling to be no more than 70 DEG C for the temperature control of material, obtains mixed material, kinematic viscosity and viscosity index (VI) are shown in Table 1.
Said mixture material is kept for 4 hours in 150 DEG C of high temperature ovens, then is homogenized and is followed by second of high pressure homogenizer Ring four times, homogenization pressures 100MPa, obtain lubricant oil composite, kinematic viscosity and viscosity index (VI) and hot test front and back Color change see Tables 1 and 2 respectively.
Comparative example 1
The comparative example is for illustrating lubricant oil composite of reference and preparation method thereof.
Mixed material and lubricant oil composite are prepared according to the method for embodiment 1, unlike, it will nitrile rubber be dispersed Particle VP401 is substituted with the peroxide crosslinking nitrile rubber particle of identical weight part, obtains reference mixed material and reference profit Sliding oil composition.Wherein, the kinematic viscosity and viscosity index (VI) of reference mixed material are shown in Table 1.The movement of reference lube composition Color change before and after viscosity and viscosity index (VI) and hot test is shown in Tables 1 and 2 respectively.
Embodiment 2
The embodiment is for illustrating lubricant oil composite provided by the invention and preparation method thereof.
By 100 parts by weight mineral base oil Ib150 and 3 parts by weight nitrile rubber particle VP401 to be dispersed is mixed and machinery It stirs evenly, then homogenizing circulation ten times in high pressure homogenizer, homogenization pressure 100MPa, every circulation primary all passes through water-bath It is cooling that the temperature control of material is being no more than 70 DEG C, mixed material is obtained, kinematic viscosity and viscosity index (VI) are shown in Table 1.
Said mixture material is kept for 4 hours in 150 DEG C of high temperature ovens, then is homogenized and is followed by second of high pressure homogenizer Ring ten times, homogenization pressures 100MPa, obtain lubricant oil composite, kinematic viscosity and viscosity index (VI) and hot test front and back Color change see Tables 1 and 2 respectively.
Comparative example 2
The comparative example is for illustrating lubricant oil composite of reference and preparation method thereof.
Mixed material and lubricant oil composite are prepared according to the method for embodiment 2, unlike, it will nitrile rubber be dispersed Particle VP401 is substituted with the peroxide crosslinking nitrile rubber particle of identical weight part, obtains reference mixed material and reference profit Sliding oil composition.Wherein, the kinematic viscosity and viscosity index (VI) of reference mixed material are shown in Table 1.The movement of reference lube composition Color change before and after viscosity and viscosity index (VI) and hot test is shown in Tables 1 and 2 respectively.
Embodiment 3
The embodiment is for illustrating lubricant oil composite provided by the invention and preparation method thereof.
By 100 parts by weight mineral base oil Ib150 and 5 parts by weight nitrile rubber particle VP401 to be dispersed is mixed and machinery It stirs evenly, then homogenizing circulation ten times in high pressure homogenizer, homogenization pressure 100MPa, every circulation primary all passes through water-bath It is cooling that the temperature control of material is being no more than 70 DEG C, mixed material is obtained, kinematic viscosity and viscosity index (VI) are shown in Table 1.
Said mixture material is kept for 4 hours in 150 DEG C of high temperature ovens, then is homogenized and is followed by second of high pressure homogenizer Ring ten times, homogenization pressures 100MPa, obtain lubricant oil composite, kinematic viscosity and viscosity index (VI) and hot test front and back Color change see Tables 1 and 2 respectively.
Embodiment 4
The embodiment is for illustrating lubricant oil composite provided by the invention and preparation method thereof.
By 100 parts by weight synthetic base oil PAO-4 and 0.5 parts by weight nitrile rubber particle VP401 to be dispersed is mixed and machine Tool stirs evenly, and then homogenizing circulation four times in high pressure homogenizer, homogenization pressure 100MPa, every circulation primary all passes through water Bath is cooling to be no more than 70 DEG C for the temperature control of material, obtains mixed material, kinematic viscosity and viscosity index (VI) are shown in Table 1.
Said mixture material is kept for 4 hours in 150 DEG C of high temperature ovens, then is homogenized and is followed by second of high pressure homogenizer Ring four times, homogenization pressures 100MPa, obtain lubricant oil composite, kinematic viscosity and viscosity index (VI) and hot test front and back Color change see Tables 1 and 2 respectively.
Embodiment 5
The embodiment is for illustrating lubricant oil composite provided by the invention and preparation method thereof.
By 100 parts by weight synthetic base oil PAO-4 and 3 parts by weight nitrile rubber particle VP401 to be dispersed is mixed and machinery It stirs evenly, then homogenizing circulation four times in high pressure homogenizer, homogenization pressure 100MPa, every circulation primary all passes through water-bath It is cooling that the temperature control of material is being no more than 70 DEG C, mixed material is obtained, kinematic viscosity and viscosity index (VI) are shown in Table 1.
Said mixture material is kept for 4 hours in 150 DEG C of high temperature ovens, then is homogenized and is followed by second of high pressure homogenizer Ring four times, homogenization pressures 100MPa, obtain lubricant oil composite, kinematic viscosity and viscosity index (VI) and hot test front and back Color change see Tables 1 and 2 respectively.
Embodiment 6
The embodiment is for illustrating lubricant oil composite provided by the invention and preparation method thereof.
By 100 parts by weight synthetic base oil PAO-4 and 5 parts by weight nitrile rubber particle VP401 to be dispersed is mixed and machinery It stirs evenly, then homogenizing circulation four times in high pressure homogenizer, homogenization pressure 100MPa, every circulation primary all passes through water-bath It is cooling that the temperature control of material is being no more than 70 DEG C, mixed material is obtained, kinematic viscosity and viscosity index (VI) are shown in Table 1.
Said mixture material is kept for 4 hours in 150 DEG C of high temperature ovens, then is homogenized and is followed by second of high pressure homogenizer Ring four times, homogenization pressures 100MPa, obtain lubricant oil composite, kinematic viscosity and viscosity index (VI) and hot test front and back Color change see Tables 1 and 2 respectively.
The kinematic viscosity and viscosity index (VI) of 1 lubricant oil composite of table
The cosmetic variation of lubricant oil composite before and after 2 high-temperature process of table
Embodiment Room temperature yellow colour index YI25 Yellow high temperature index YI150 Change colour index IC
Embodiment 1 6.2 45.0 7.3
Comparative example 1 7.0 66.9 9.6
Embodiment 2 7.5 50.6 6.7
Comparative example 2 8.1 76.4 9.4
Embodiment 3 7.8 55.2 7.1
Embodiment 4 4.8 34.3 7.1
From the results shown in Table 1, with contain the lubricating oil of nitrile rubber particle obtained by peroxide crosslinking Composition is compared, the lubricant oil composite containing the nitrile rubber particle with cross-linked structure obtained by cross-linking radiation method In low temperature (40 DEG C) viscosity is lower, and (100 DEG C) viscosity is higher at high temperature, and its viscosity index (VI) is larger, therefore, this hair The lubricant oil composite of bright offer has better viscosity temperature characteristic, to have better temperature pumping and mobile performance, favorably It in the cold start-up of mechanical equipment, and is also beneficial to form thicker oil film at high temperature, reduces mantle friction, improve lubrication effect Fruit, while it being suitable for broader use temperature range, and friction can be reduced, energy-saving effect is more preferably.
In addition, from the results shown in Table 2, the high temperature resistance and ageing-resistant performance of lubricant oil composite of the invention It is excellent, it is not easy to change.
The preferred embodiment of the present invention has been described above in detail, still, during present invention is not limited to the embodiments described above Detail within the scope of the technical concept of the present invention can be with various simple variants of the technical solution of the present invention are made, this A little simple variants all belong to the scope of protection of the present invention.
It is further to note that specific technical features described in the above specific embodiments, in not lance In the case where shield, it can be combined in any appropriate way.In order to avoid unnecessary repetition, the present invention to it is various can No further explanation will be given for the combination of energy.
In addition, various embodiments of the present invention can be combined randomly, as long as it is without prejudice to originally The thought of invention, it should also be regarded as the disclosure of the present invention.

Claims (43)

1. a kind of lubricant oil composite, which is characterized in that the lubricant oil composite contains base oil and is dispersed in the basis The nitrile rubber particle with cross-linked structure prepared by cross-linking radiation method in oil, the base oil are continuous phase, institute Stating nitrile rubber particle is dispersed phase, and the base oil relative to 100 parts by weight, the content of the nitrile rubber particle are 0.005-10 parts by weight, wherein the average grain diameter of the nitrile rubber particle is 20-2000nm, the nitrile rubber particle Gel content is 60 weight % or more.
2. lubricant oil composite according to claim 1, wherein relative to the base oil of 100 parts by weight, the fourth The content of nitrile rubber particle is 0.1-8 parts by weight.
3. lubricant oil composite according to claim 1, wherein relative to the base oil of 100 parts by weight, the fourth The content of nitrile rubber particle is 0.5-6 parts by weight.
4. lubricant oil composite according to claim 1, wherein the average grain diameter of the nitrile rubber particle is 50- 1000nm。
5. lubricant oil composite according to claim 4, wherein the average grain diameter of the nitrile rubber particle is 70- 500nm。
6. lubricant oil composite according to claim 1, wherein the gel content of the nitrile rubber particle is 75 weights Measure % or more.
7. lubricant oil composite according to claim 6, wherein the gel content of the nitrile rubber particle is 80 weights Measure % or more.
8. lubricant oil composite described in any one of -3 according to claim 1, wherein the nitrile rubber particle has equal Phase structure.
9. lubricant oil composite described in any one of -3 according to claim 1, wherein the base oil is mineral base oil And/or synthetic base oil.
10. lubricant oil composite according to claim 9, wherein the mineral base oil is selected from viscosity index (VI) VI≤40 Low-viscosity index mineral base oil, the medium viscosity index mineral base oil of 40 < viscosity index (VI) VI≤90,90 < viscosity index (VI)s The high viscosity index (HVI) mineral base oil of VI≤120,120 < viscosity index (VI) VI≤140 very high viscosity index (HVI) mineral base oil, viscous Spend at least one of the superhigh viscosity index mineral base oil of index VI > 140.
11. lubricant oil composite according to claim 9, wherein the synthetic base oil is selected from synthesis hydrocarbon, alkyl virtue At least one of hydrocarbon, synthetic ester, polyethers, halogenated hydrocarbons, polysiloxanes and fluorine-containing oil.
12. lubricant oil composite according to claim 11, wherein it is low that the synthesis hydrocarbon is selected from ethylene low polymer, propylene At least one of polymers, polybutene, polyisobutene, poly alpha olefin, poly-internal-olefins and halogenated product of above-mentioned synthesis hydrocarbon.
13. lubricant oil composite according to claim 11, wherein the alkylaromatic hydrocarbon be selected from alkylbenzene, alkylnaphthalene with And contain at least one of heteroatomic alkylaromatic hydrocarbon.
14. lubricant oil composite according to claim 11, wherein the synthetic ester is selected from monoesters, dibasic acid esters, polyalcohol At least one in ester, polymer esters, carbonic ester, phosphate, citrate, esters of silicon acis and olefin-acrylic lipin polymer Kind.
15. lubricant oil composite according to claim 11, wherein the polyethers is selected from aliphatic polyether, polyphenylene oxide, gathers At least one of polythiaether and perfluoroalkyl polyethers.
16. lubricant oil composite according to claim 11, wherein the polysiloxanes is selected from two polysiloxanes, trimerization At least one of siloxanes, four polysiloxanes, eight polysiloxanes and the poly- tetrasiloxane of ring.
17. a kind of preparation method of lubricant oil composite, this method includes preparing by base oil and by cross-linking radiation method Nitrile rubber particle to be dispersed with cross-linked structure is mixed and is dispersed, and the base oil relative to 100 parts by weight, The dosage of the nitrile rubber particle to be dispersed is 0.005-10 parts by weight, wherein the nitrile rubber particle to be dispersed is served as reasons Average grain diameter is the nitrile rubber particle aggregation of 20-2000nm and the rubber particles group that is formed, the nitrile rubber grain to be dispersed The gel content of son is 60 weight % or more.
18. according to the method for claim 17, wherein the mixing and mode dispersed includes:
(1) the nitrile rubber particle to be dispersed is added in the base oil and by mechanical stirring mixing so that it is described to The dispersion of dispersion nitrile rubber particle is suspended in the base oil, the composition tentatively dispersed;
(2) composition tentatively dispersed is subjected to redisperse, until the average grain diameter of the nitrile rubber particle after dispersion reaches To in the range of 20-2000nm.
19. according to the method for claim 18, wherein the composition tentatively dispersed is subjected to redisperse, until point The average grain diameter of nitrile rubber particle after dissipating reaches in the range of 50-1000nm.
20. according to the method for claim 19, wherein the composition tentatively dispersed is subjected to redisperse, until point The average grain diameter of nitrile rubber particle after dissipating reaches in the range of 70-500nm.
21. according to the method for claim 18, wherein this method further includes step (3), the product that step (2) is obtained Not less than 80 DEG C at a temperature of place at least 1 hour, obtained product is subjected to secondary redisperse later.
22. according to the method for claim 21, wherein this method further includes step (3), the product that step (2) is obtained Not less than 100 DEG C at a temperature of place at least 2 hours, obtained product is subjected to secondary redisperse later.
23. according to the method for claim 21, wherein this method further includes step (3), the product that step (2) is obtained Not less than 100 DEG C at a temperature of place at least 4 hours, obtained product is subjected to secondary redisperse later.
24. according to the method for claim 21, wherein two described in redisperse described in step (2) and step (3) Secondary redisperse each independently in homogenizer, bead mill, three-roll grinder, single screw extrusion machine, multi-screw extruder, pinch It is carried out at least one of conjunction machine, dissolvers and ultrasonic disperser mixing apparatus.
25. according to the method for claim 24, wherein two described in redisperse described in step (2) and step (3) Secondary redisperse each independently at least one of homogenizer, three-roll grinder and ultrasonic disperser mixing apparatus into Row.
26. according to the method for claim 25, wherein two described in redisperse described in step (2) and step (3) Secondary redisperse carries out in homogenizer each independently.
27. according to the method for claim 21, wherein be placed in airtight heating equipment and carry out described in step (3).
28. according to the method for claim 17, wherein relative to the base oil of 100 parts by weight, the fourth to be dispersed The dosage of nitrile rubber particle is 0.1-8 parts by weight.
29. according to the method for claim 28, wherein relative to the base oil of 100 parts by weight, the fourth to be dispersed The dosage of nitrile rubber particle is 0.5-6 parts by weight.
30. according to the method for claim 17, wherein it is 50- that the nitrile rubber particle to be dispersed, which is by average grain diameter, The nitrile rubber particle aggregation of 1000nm and the rubber particles group formed.
31. according to the method for claim 30, wherein it is 70- that the nitrile rubber particle to be dispersed, which is by average grain diameter, The nitrile rubber particle aggregation of 500nm and the rubber particles group formed.
32. according to the method for claim 17, wherein the gel content of the nitrile rubber particle to be dispersed is 75 weights Measure % or more.
33. according to the method for claim 32, wherein the gel content of the nitrile rubber particle to be dispersed is 80 weights Measure % or more.
34. method described in any one of 7-29 according to claim 1, wherein the nitrile rubber particle to be dispersed has Equal phase structure.
35. method described in any one of 7-29 according to claim 1, wherein the base oil be mineral base oil and/or Synthetic base oil.
36. according to the method for claim 35, wherein the mineral base oil is selected from the low viscosity of viscosity index (VI) VI≤40 Index mineral base oil, the medium viscosity index mineral base oil of 40 < viscosity index (VI) VI≤90,90 < viscosity index (VI) VI≤120 High viscosity index (HVI) mineral base oil, 120 < viscosity index (VI) VI≤140 very high viscosity index (HVI) mineral base oil, viscosity index (VI) VI At least one of superhigh viscosity index mineral base oil of > 140.
37. according to the method for claim 35, wherein the synthetic base oil is selected from synthesis hydrocarbon, alkylaromatic hydrocarbon, synthesis At least one of ester, polyethers, halogenated hydrocarbons, polysiloxanes and fluorine-containing oil.
38. according to the method for claim 37, wherein the synthesis hydrocarbon is selected from ethylene low polymer, propylene oligomer, poly- fourth Alkene, polyisobutene, poly alpha olefin, poly-internal-olefins and more than synthesize at least one of halogenated product of hydrocarbon.
39. according to the method for claim 37, wherein the alkylaromatic hydrocarbon is selected from alkylbenzene, alkylnaphthalene and containing miscellaneous At least one of alkylaromatic hydrocarbon of atom.
40. according to the method for claim 37, wherein the synthetic ester is selected from monoesters, dibasic acid esters, polyol ester, polymer At least one of ester, carbonic ester, phosphate, citrate, esters of silicon acis and olefin-acrylic lipin polymer.
41. according to the method for claim 37, wherein the polyethers be selected from aliphatic polyether, polyphenylene oxide, poly- polythiaether and At least one of perfluoroalkyl polyethers.
42. according to the method for claim 37, wherein the polysiloxanes is selected from two polysiloxanes, cyclotrisiloxane, four At least one of polysiloxanes, eight polysiloxanes and the poly- tetrasiloxane of ring.
43. the lubricant oil composite that the method as described in any one of claim 17-42 is prepared.
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