CN106147930B - A kind of lubricant oil composite and preparation method thereof - Google Patents
A kind of lubricant oil composite and preparation method thereof Download PDFInfo
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- CN106147930B CN106147930B CN201510189194.9A CN201510189194A CN106147930B CN 106147930 B CN106147930 B CN 106147930B CN 201510189194 A CN201510189194 A CN 201510189194A CN 106147930 B CN106147930 B CN 106147930B
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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 ethylene-vinyl acetate rubber particles 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 ethylene-vinyl acetate rubber particles are dispersed phase, and the base oil relative to 100 parts by weight, the content of the ethylene-vinyl acetate rubber particles 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 ethylene-vinyl acetate rubber particles 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
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
Dispersed phase in lubricant oil composite is the ethylene-vinyl acetate rubber with cross-linked structure prepared by cross-linking radiation method
The micelle period of the day from 11 p.m. to 1 a.m, corresponding lubricant oil composite have good viscosity temperature characteristic, can very well adjust with the variation of temperature
Viscosity is saved, low temperature viscosity is reduced and improves high temperature viscosity, therefore, can largely make up the variation due to temperature to viscous
It is influenced caused by degree.In addition, high-energy radiation actually very cleaning, the safe and efficient energy, at present by many flourishing
Country is widely used for the fields such as health care, food processing, industrial production, is using Chemical Crosslinking Methods (peroxidating instead
Object) there is a problem of it is some very important, as production efficiency is not high, peroxide residual and the environmental pollution that may cause
Deng these can all limit 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 ethylene-vinyl acetate rubber granule with cross-linked structure prepared by cross-linking radiation method being dispersed in the base oil
Son, the base oil are continuous phase, and the ethylene-vinyl acetate rubber particles are dispersed phase, and relative to 100 parts by weight
The base oil, the content of the ethylene-vinyl acetate rubber particles are 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 ethylene-vinyl acetate rubber particles to be dispersed with cross-linked structure of method preparation are mixed and are dispersed, and relative to
The base oil of 100 parts by weight, the dosage of the ethylene-vinyl acetate rubber particles to be dispersed are 0.005-10 weight
Part.
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 ethylene-vinyl acetate rubber particles for learning crosslinking are compared, and viscosity is lower at low temperature, and viscosity is higher at high temperature, and
And its viscosity index (VI) is larger, can satisfy the requirement that temperature reaches 200 DEG C or more occasions, therefore, has significantly widened the profit
The use temperature range of sliding oil composition.The lubricant oil composite can be used for blends engine oil, gear oil, hydraulic oil etc. other
Hot industry oil, with double ring arene, polycyclic aromatic hydrocarbon and non-hydrocarbons base oil is main suitable for it is poor to adjust viscosity temperature characteristic
The viscosity temperature characteristic of the lubricating composition of component can provide different viscous temperature according to the demand in different operating place, easy adjustment
The lubricating oil of performance.
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 ethylene-vinyl acetate powdered rubber particle of cross-linking radiation method preparation is because be crosslinked more uniform, grain
Diameter distribution is narrower, and it is evenly dispersed to be easier to reach nanoscale in base oil, though when its in lubricant oil composite specific gravity compared with
It also can be well dispersed when high (5 weight %).And chemical friendship is carried out by using crosslinking agent (polyfunctional compound or peroxide)
It is limited to crosslinking agent when connection to dissolve in rubber latex and diffusivity, is extremely difficult to the crosslinking degree of substantially uniformity, causes to hand over
There are larger differences for the rubber particle size of connection, so it disperses more difficulty in base oil, for example, when it is in lubricating oil group
When specific gravity reaches 3 weight % in conjunction object, the lubricant oil composite of preparation is easy to appear the lamination of part, this is larger rubber
The performance of particle precipitation declines lubricant compositions viscosity temperature characteristic.In addition, continuing growing chemical crosslinking ethylene-vinegar
When ethylene-vinylacetate rubber particle specific gravity is to 5 weight %, the lubricant oil composite of preparation then can not through the invention technique carry out it is equal
Even dispersion, the reason is that the rubber particles of uneven crosslinking and larger size are very easy to blocking and damage equipment.
Other features and advantages of the present invention will the following detailed description will be given in the detailed implementation section.
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 ethylene-vinyl acetate rubber particles with cross-linked structure of method preparation, the base oil are continuous phase, the ethylene-
Vinyl acetate rubber particle is dispersed phase, and the base oil relative to 100 parts by weight, the ethylene-vinyl acetate
The content of rubber particles is 0.005-10 parts by weight.Wherein, the ethylene-vinyl acetate rubber particles are in base oil in steady
Determine dispersity.
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 of ethylene-vinyl acetate rubber particles is stated as 0.005-10 parts by weight, but in order to enable base oil and ethyl vinyl acetate second
Enester rubber particles play 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 content of the ethylene-vinyl acetate rubber particles 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 ethylene-vinyl acetate rubber particles are averaged
Partial size is 20-2000nm, more preferably 50-1000nm, particularly preferably 70-500nm.When by the ethylene-vinyl acetate
When the average grain diameter of rubber particles is controlled within the above range, the viscosity of lubricant oil composite can be more effectively adjusted, is had
Better temperature pumping and mobile performance, are conducive to the cold start-up of mechanical equipment, and are also beneficial to be formed at high temperature thicker
Oil film reduces mantle friction, that is, be suitable for broader use temperature range.
The lubricant oil composite provided according to the present invention, it is preferable that the gel of the ethylene-vinyl acetate rubber particles
Content is 60 weight % or more, more preferably 75 weight % or more, particularly preferably 80 weight % or more.When by the ethylene-
When the gel content of vinyl acetate rubber particle is controlled 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.In the present invention, the gel content is that this field is used
In a kind of Common Parameters of characterization rubber cross degree, measured according to method disclosed in CN1402752A.
Ethylene-vinyl acetate rubber particles provided by the invention preferably have equal phase structure.In the present invention, described
" equal phase structure " refers to be observed under existing microtechnic, without discovery layering, split-phase in ethylene-vinyl acetate rubber particles
Deng not homogeneous phenomenon.
The ethylene-vinyl acetate rubber particles are the rubber particles that ethylene and vinyl acetate are copolymerized.Described
In ethylene-vinyl acetate rubber particles, the content of vinyl acetate structural unit can be 40-95 weight %, preferably 60-90
Weight %.
The lubricant oil composite provided according to the present invention, high-energy ray source used in the cross-linking radiation can be specifically selected from
At 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 μm, example
For example cobalt source.In addition, under normal circumstances, the dosage of irradiation should make the ethylene-vinyl acetate after rubber latex cross-linking radiation
The gel content of rubber particles reaches 60 weight % or more, preferably reaches 75 weight % or more, more preferably up to 80 weight % with
On.Specifically, the dosage of irradiation 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 ethylene-vinyl acetate rubber particles to be dispersed with cross-linked structure mixed and dispersed, and relative to 100 parts by weight
The base oil, the dosages of the ethylene-vinyl acetate rubber particles to be dispersed is 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 ethylene-vinyl acetate rubber particles to be dispersed are 0.005-10 parts by weight, but in order to enable basis
Oil and ethylene-vinyl acetate rubber particles to be dispersed play the role of better coordinated, and so that the lubricating oil arrived
Composition has better viscosity temperature characteristic, it is preferable that relative to the base oil of 100 parts by weight, the ethylene-vinegar to be dispersed
The dosage of ethylene-vinylacetate rubber particle is 0.1-8 parts by weight, 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 ethene-vinyl acetate to be dispersed
Ester rubber particles are the ethylene-for being 20-2000nm, more preferably 50-1000nm, particularly preferably 70-500nm by average grain diameter
Vinyl acetate rubber particle aggregation and the rubber particles group formed.When by the ethylene-vinyl acetate rubber granule to be dispersed
After son is dispersed in base oil, the ethylene-vinyl acetate rubber particles of reunion can be dispersed well, thus with
20-2000nm, preferably with 50-1000nm, more preferably with the average particle size distribution of 70-500nm in base oil.In addition, described
The average grain diameter of ethylene-vinyl acetate rubber particles to be dispersed is preferably 20-2000nm, more preferably 50-1000nm, especially
Preferably 70-500nm.
The preparation method of the lubricant oil composite provided according to the present invention, it is preferable that the ethene-vinyl acetate to be dispersed
The gel content of ester rubber particles be 60 weight % or more, more preferably 75 weight % or more, particularly preferably 80 weight % with
On.It, can be with when controlling within the above range the gel content wait disperse ethylene-vinyl acetate rubber particles
The variation of temperature more effectively adjusts the viscosity of lubricant oil composite, is suitable for broader use temperature range.
The ethylene-vinyl acetate rubber particles to be dispersed preferably have equal phase structure.In the present invention, described " equal
Phase structure " refers to be observed under existing microtechnic, be layered in ethylene-vinyl acetate rubber particles to be dispersed without discovery,
The not homogeneous phenomenon such as split-phase.
The ethylene-vinyl acetate rubber particles to be dispersed are that ethylene and vinyl acetate copolymer lotion is handed over by irradiation
The ethylene-vinyl acetate rubber particles that connection is prepared and is dried to obtain by spray drying process.Preferably, with the second to be dispersed
On the basis of alkene-vinyl acetate rubber particle total weight, acetic acid second in the ethylene-vinyl acetate rubber particles to be dispersed
The content of alkene structural unit is 40-95 weight %, more preferably 60-90 weight %.
In the preparation process of the ethylene-vinyl acetate rubber particles to be dispersed, high energy used in cross-linking radiation is penetrated
Line source can specifically be selected from least one of cobalt source, ultraviolet, high-energy electron accelerator, it is preferable that the high-energy ray source
Wavelength is less than 0.1 μm, for example, cobalt source.In addition, under normal circumstances, after the dosage of irradiation should make rubber latex cross-linking radiation
The gel content of ethylene-vinyl acetate rubber particles reaches 60 weight % or more, preferably reaches 75 weight % or more, more preferably
Reach 80 weight % or more.Specifically, the dosage of irradiation can be 0.1-30Mrad, preferably 0.5-20Mrad.
The ethylene-vinyl acetate rubber particles to be dispersed can be commercially available, can also be according to this field skill
Various methods well known to art are prepared.For example, the ethylene-vinyl acetate rubber particles to be dispersed can be for according to this hair
The international patent application WO01/40356 (priority date on December 3rd, 1999) that bright applicant submitted on September 18th, 2000
And international patent application WO01/98395 (priority date 2000 6 that applicant of the present invention submitted on June 15th, 2001
Months 15 days) disclosed in the ethylene-vinyl acetate powdered rubber particle that is prepared of method.By above method preparation wait divide
Dissipating ethylene-vinyl acetate rubber particles is after drying without adding the i.e. free flowable rubber micro mist of interleaving agent, wherein each
A rubber particle be all it is homogeneous, i.e., single particle is all homogeneous in composition, the particle under the observation of existing microtechnic
It is interior without discovery layering, the not homogeneous phenomenon such as split-phase.The powdered rubber is and by corresponding rubber latex cross-linking radiation
The partial size of rubber particles is able to fixation.
In addition, can not make in the cross-linking radiation preparation process of the ethylene-vinyl acetate rubber particles to be dispersed
With cross-linking aid, cross-linking aid also can be used.The cross-linking aid can be handed over selected from simple function group cross-linking aid, two functional groups
Join auxiliary agent, trifunctional cross-linking aid, any one in the above cross-linking aid of four-functional group cross-linking aid and five functional groups.Institute
The example for stating simple function group cross-linking aid includes but is not limited to: (methyl) 2-ethyl hexyl acrylate, (methyl) Isooctyl acrylate monomer, (first
At least one of base) glycidyl acrylate；The example of two functional group cross-linking aid includes but is not limited to: 1,4- fourth
Glycol two (methyl) acrylate, 1,6-hexylene glycols two (methyl) acrylate, diethylene glycol two (methyl) acrylate, three second
At least one of glycol two (methyl) acrylate, neopentyl glycol two (methyl) acrylate, divinylbenzene；Three official
The example that cross-linking aid can be rolled into a ball includes but is not limited to: three (first of trimethylolpropane tris (methyl) acrylate and/or pentaerythrite
Base) acrylate；The example of the four-functional group cross-linking aid includes but is not limited to: pentaerythrite four (methyl) acrylate
And/or ethoxyquin pentaerythrite four (methyl) acrylate；The example of the above cross-linking aid of five functional groups includes but unlimited
In: dipentaerythritol five (methyl) acrylate.Herein, described (methyl) acrylate refers to acrylate or methyl-prop
Olefin(e) acid ester.These cross-linking aids can be applied in combination in any way, as long as they facilitate crosslinking under irradiation.This
Outside, the additional amount of the cross-linking aid 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 ethylene-vinyl acetate rubber particles are mixed and are 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 second to be dispersed
Alkene-vinyl acetate rubber particle is effectively dispersed in base oil, to obtain using base oil as continuous phase and with ethylene-
Vinyl acetate rubber particle is the lubricant oil composite of dispersed phase.A preferred embodiment of the invention, institute
It states mixing and the mode dispersed includes:
(1) the ethylene-vinyl acetate rubber particles to be dispersed are added in the base oil and pass through mechanical stirring
Mixing is tentatively divided so that the ethylene-vinyl acetate rubber particles to be dispersed disperse or are suspended in the base oil
Scattered composition；
(2) composition tentatively dispersed is subjected to redisperse, until the ethylene-vinyl acetate rubber granule after dispersion
The average grain diameter of son reach 20-2000nm in the range of, preferably reach 50-1000nm in the range of, more preferably up to 70-
In the range of 500nm.Pass through this preferred mixing and enable to by way of dispersing ethylene-vinyl acetate rubber particles with
Initial size is dispersed in base oil, and the viscosity temperature characteristic of obtained lubricant oil composite 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
100-200 DEG C at a temperature of place at least 1 hour, preferably place at least 2 hours, more preferably place at least 4 hours, most preferably
Obtained product is subjected to secondary redisperse after placing 4-10 hours, enables to the ethylene-vinyl acetate of crosslinking in this way
Rubber particles and base oil are sufficiently infiltrated and are swollen, and ethylene-vinyl acetate rubber particles are existed with smaller particle size dispersion
In base oil, to obtain the better lubricant oil composite of viscosity temperature characteristic.In addition, the product of step (2) is existed in step (3)
During placing at least 1 hour at a temperature of not less than 80 DEG C, it can cooperate and accomplished continuously or intermittently stir, so that stirring material is heated more
Uniformly.
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, as long as making the ethene-vinyl acetate to be dispersed with cross-linked structure prepared by cross-linking radiation method
Under the premise of the performance of ester rubber particles and base oil does not have any variation, having for making to prepare by cross-linking radiation method is crosslinked
The ethylene-vinyl acetate rubber particles to be dispersed of structure disperse or are suspended in base oil, to this those skilled in the art
Member can know that 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 ethylene-vinyl acetate rubber particles being dispersed in base oil are averaged
Partial size reaches within the scope of 20-2000nm, preferably reaches within the scope of 50-1000nm, within the scope of more preferably up to 70-500nm.This
Outside, the present invention is not particularly limited the condition of the redisperse and secondary redisperse, as long as making base oil and ethylene-vinegar
Ethylene-vinylacetate rubber particle performance in dispersion process is not destroyed, and makes the grain of ethylene-vinyl acetate rubber particles
Diameter reaches 20-2000nm, preferably reaches 50-1000nm, more preferably up to 70-500nm, equal to this those skilled in the art
It can know, 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 ethylene-vinyl acetate rubber particles with air (oxygen) can also be reduced, it reduces
Thermal oxide degree makes properties of product 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.
Ethylene-vinyl acetate rubber particles to be dispersed, Sinopec production, trade mark VP801 are by average grain diameter
The ethylene-vinyl acetate rubber particles of 500nm are reunited, and gel content is 90 weight %, is observed under the microscope, should be to
Disperse without discovery layering, noted phase separation phenomena in ethylene-vinyl acetate rubber particles, by ethene-vinyl acetate rubber latex
Cross-linking radiation method preparation is carried out using cobalt source and is dried to obtain by spray drying process.
Peroxide crosslinking ethylene-vinyl acetate rubber particles are according to method system disclosed in patent CN1840622A
It is standby and obtained using spray drying process, rubber latex be ethene-vinyl acetate rubber lotion liquid (with prepare ethylene-vinegar to be dispersed
The composition of rubber latex used by ethylene-vinylacetate rubber particle VP801 is identical), the crosslinking agent used is cumyl peroxide
(DCP), the average grain diameter of the peroxide crosslinking ethylene-vinyl acetate rubber particles finally obtained is 500nm, gel content
It 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 ethylene-vinyl acetate rubber particles to be dispersed
Simultaneously mechanical stirring is uniform for VP801 mixing, and then homogenizing circulation four times in high pressure homogenizer, homogenization pressure 100MPa is often followed
The control of the temperature of material is once all being no more than 70 DEG C by water-bath cooling by ring, obtains mixed material, kinematic viscosity and viscous
Degree index is 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 ethylene-vinegar be dispersed
Ethylene-vinylacetate rubber particle VP801 is substituted with the peroxide crosslinking ethylene-vinyl acetate rubber particles of identical weight part, is obtained
To reference mixed material and reference lube composition.Wherein, the kinematic viscosity and viscosity index (VI) of reference mixed material are shown in Table 1.
Color change before and after the kinematic viscosity and viscosity index (VI) of reference lube composition 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 ethylene-vinyl acetate rubber particles VP801 to be dispersed
It mixes and mechanical stirring is uniform, then homogenizing circulation ten times, homogenization pressure 100MPa, every circulation primary in high pressure homogenizer
The temperature control of material is all being no more than 70 DEG C by water-bath cooling, is obtaining mixed material, kinematic viscosity and viscosity index (VI)
It is 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 ethylene-vinegar be dispersed
Ethylene-vinylacetate rubber particle VP801 is substituted with the peroxide crosslinking ethylene-vinyl acetate rubber particles of identical weight part, is obtained
To reference mixed material and reference lube composition.Wherein, the kinematic viscosity and viscosity index (VI) of reference mixed material are shown in Table 1.
Color change before and after the kinematic viscosity and viscosity index (VI) of reference lube composition 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 ethylene-vinyl acetate rubber particles VP801 to be dispersed
It mixes and mechanical stirring is uniform, then homogenizing circulation ten times, homogenization pressure 100MPa, every circulation primary in high pressure homogenizer
The temperature control of material is all being no more than 70 DEG C by water-bath cooling, is obtaining mixed material, kinematic viscosity and viscosity index (VI)
It is 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 ethylene-vinyl acetate rubber particles to be dispersed
Simultaneously mechanical stirring is uniform for VP801 mixing, and then homogenizing circulation four times in high pressure homogenizer, homogenization pressure 100MPa is often followed
The control of the temperature of material is once all being no more than 70 DEG C by water-bath cooling by ring, obtains mixed material, kinematic viscosity and viscous
Degree index is 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 ethylene-vinyl acetate rubber particles VP801 to be dispersed
It mixes and mechanical stirring is uniform, then homogenizing circulation ten times, homogenization pressure 100MPa, every circulation primary in high pressure homogenizer
The temperature control of material is all being no more than 70 DEG C by water-bath cooling, is obtaining mixed material, kinematic viscosity and viscosity index (VI)
It is 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 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 ethylene-vinyl acetate rubber particles VP801 to be dispersed
It mixes and mechanical stirring is uniform, then homogenizing circulation ten times, homogenization pressure 100MPa, every circulation primary in high pressure homogenizer
The temperature control of material is all being no more than 70 DEG C by water-bath cooling, is obtaining mixed material, kinematic viscosity and viscosity index (VI)
It is 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.
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 | 5.0 | 35.2 | 7.0 |
| Comparative example 1 | 5.1 | 40.0 | 7.8 |
| Embodiment 2 | 7.2 | 43.2 | 6.0 |
| Comparative example 2 | 7.4 | 60.4 | 8.2 |
| Embodiment 3 | 6.8 | 42.7 | 6.3 |
| Embodiment 4 | 4.2 | 32.2 | 7.7 |
From the results shown in Table 1, with contain the ethylene-vinyl acetate rubber granule that obtains by peroxide crosslinking
The lubricant oil composite of son is compared, and the ethylene-vinyl acetate with cross-linked structure obtained by cross-linking radiation method is contained
The lubricant oil composite of rubber particles 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, and therefore, lubricant oil composite provided by the invention has better viscosity temperature characteristic, to have preferably low
Temperature pumping and mobile performance, are conducive to the cold start-up of mechanical equipment, and are also beneficial to form thicker oil film at high temperature, reduce
Mantle friction improves lubricant effect, while being suitable for broader use temperature range, and can reduce friction, energy-saving effect
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 ethylene-vinyl acetate rubber particles with cross-linked structure prepared by cross-linking radiation method in oil, the base oil
For continuous phase, the ethylene-vinyl acetate rubber particles are dispersed phase, and the base oil relative to 100 parts by weight, institute
The content for stating ethylene-vinyl acetate rubber particles is 0.005-10 parts by weight, wherein the ethylene-vinyl acetate rubber
The average grain diameter of particle is 20-2000nm, the gel contents of the ethylene-vinyl acetate rubber particles be 60 weight % with
On.
2. lubricant oil composite according to claim 1, wherein relative to the base oil of 100 parts by weight, the second
Alkene-vinyl acetate rubber particle content is 0.1-8 parts by weight.
3. lubricant oil composite according to claim 2, wherein relative to the base oil of 100 parts by weight, the second
Alkene-vinyl acetate rubber particle content is 0.5-6 parts by weight.
4. lubricant oil composite according to claim 1, wherein the ethylene-vinyl acetate rubber particles are averaged
Partial size is 50-1000nm.
5. lubricant oil composite according to claim 4, wherein the ethylene-vinyl acetate rubber particles are averaged
Partial size is 70-500nm.
6. lubricant oil composite according to claim 1, wherein the gel of the ethylene-vinyl acetate rubber particles
Content is 75 weight % or more.
7. lubricant oil composite according to claim 6, wherein the gel of the ethylene-vinyl acetate rubber particles
Content is 80 weight % or more.
8. lubricant oil composite described in any one of -3 according to claim 1, wherein the ethylene-vinyl acetate rubber
Micelle 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 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 of ester, polymer esters, carbonic ester, phosphate, citrate, esters of silicon acis and olefin-acrylic lipin polymer.
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
Ethylene-vinyl acetate rubber particles to be dispersed with cross-linked structure are mixed and are dispersed, and relative to 100 parts by weight
The base oil, the dosage of the ethylene-vinyl acetate rubber particles to be dispersed are 0.005-10 parts by weight, wherein described
Ethylene-vinyl acetate rubber particles to be dispersed are the ethylene-vinyl acetate rubber particles for being 20-2000nm by average grain diameter
The rubber particles group reunited and formed, the gel content of the ethylene-vinyl acetate rubber particles to be dispersed are 60 weight %
More than.
18. according to the method for claim 17, wherein the mixing and mode dispersed includes:
(1) the ethylene-vinyl acetate rubber particles to be dispersed are added in the base oil and are mixed by mechanical stirring,
So that the ethylene-vinyl acetate rubber particles to be dispersed disperse or are suspended in the base oil, tentatively dispersed
Composition；
(2) composition tentatively dispersed is subjected to redisperse, until the ethylene-vinyl acetate rubber particles after dispersion
Average grain diameter reaches 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 ethylene-vinyl acetate rubber particles 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 ethylene-vinyl acetate rubber particles 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 22, 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 described in redisperse described in step (2) and step (3) it is secondary again
Dispersion is each independently in homogenizer, bead mill, three-roll grinder, single screw extrusion machine, multi-screw extruder, kneading
It is carried out at least one of machine, dissolvers and ultrasonic disperser mixing apparatus.
25. according to the method for claim 24, wherein described in redisperse described in step (2) and step (3) it is secondary again
Dispersion carries out at least one of homogenizer, three-roll grinder and ultrasonic disperser mixing apparatus each independently.
26. according to the method for claim 25, wherein described in redisperse described in step (2) and step (3) it is secondary again
Dispersion 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 second to be dispersed
Alkene-vinyl acetate rubber particle dosage 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 second to be dispersed
Alkene-vinyl acetate rubber particle dosage is 0.5-6 parts by weight.
30. according to the method for claim 17, wherein the ethylene-vinyl acetate rubber particles to be dispersed are by putting down
The ethylene-vinyl acetate rubber particles that equal partial size is 50-1000nm are reunited and the rubber particles group of formation.
31. according to the method for claim 30, wherein the ethylene-vinyl acetate rubber particles to be dispersed are by putting down
The ethylene-vinyl acetate rubber particles that equal partial size is 70-500nm are reunited and the rubber particles group of formation.
32. according to the method for claim 17, wherein the gel of the ethylene-vinyl acetate rubber particles to be dispersed
Content is 75 weight % or more.
33. according to the method for claim 32, wherein the gel of the ethylene-vinyl acetate rubber particles to be dispersed
Content is 80 weight % or more.
34. method described in any one of 7-29 according to claim 1, wherein the ethylene-vinyl acetate rubber to be dispersed
Micelle 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 contains miscellaneous original
At least one of the alkylaromatic hydrocarbon of son.
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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