CN105219502B - A kind of automobile engine lubricating oil and preparation method thereof - Google Patents

Abstract

The present invention relates to a kind of automobile engine lubricating oils and preparation method thereof, belong to technical field of lubricating oil.It include following component by weight：120~150 parts of base oil, 0.06~0.12 part of pyridine derivatives, 4 fluorine-based acetophenone O 1, (1 ', 3,4, triazole) 0.5~0.8 part of methylene oxime, 2~4 parts of organic amine preservative, 0.8~2.4 part of methylbenzotriazole, 0.6~1.2 part of Epoxy polyaniline, 0.003~0.008 part of methyl-silicone oil, 4~6 parts of dispersant, 3~5 parts of metal detergent, 2~4 parts of antioxidant, 5~8 parts of antiwear agents, 3~8 parts of rust oxidation.The present invention in lubricating oil by being added pyridine derivatives, and 4 fluorine-based acetophenone O 1 are added, and (1 ', 3,4, triazole) methylene oxime makes the abrasion resistance of lubricating oil improve.

Description

A kind of automobile engine lubricating oil and preparation method thereof

Technical field

The present invention relates to a kind of automobile engine lubricating oil and preparation method thereof, more particularly to a kind of methanol engine lubrication Oil belongs to technical field of lubricating oil.

Background technology

In the entire oil consumption market in China, gasoline, diesel oil consumption figure be more than the 50% of aggregate consumption, wherein hand over Logical fuel accounts for 70% or more, this is also the contradictory key point of China's energy resource structure.It is predicted according to automobile industry department, in future 20 In year, the car owning amount in China will quadruple on the basis of 2000.It means that possessing to the year two thousand twenty China automobile Amount will be more than 60,000,000.Only it will be more than just 200,000,000 tons to the consumption of gasoline, diesel oil.With the fast development of economic construction of China, Demand to the energy is also being skyrocketed through, especially rich and influential family --- the rapid development of automobile and ic engine industry of oil product consumption, Further increase the energy crisis sense in China.For the China that petroleum resources lack, either from political or economical From the aspect of, energy security has become unavoidable realistic problem.

Methanol gasoline refers to methanol fractions addition in gasoline, and M series made of being compounded with methanol fuel additive is mixed Close fuel.Wherein, most commonly M15 (15% methanol is added in gasoline) clean methanol gasoline is vehicle fuel, Ke Yi Under conditions of not changing existing engine structure, substitutes gasoline product and use, and can be mixed with product oil.Methanol Blends The thermal efficiency, dynamic property, startability, economy are good, can also reduce discharge.Product main feature：1, environmental protection, spatter property are prominent Go out.Process of producing product, which uses, to be cleaned in technique without " three wastes ".This product is harmless without the gas cleaning being discharged after the burnings such as lead, Be conducive to improve urban environment.2, easy to use, without changing device.If automobile need to increase spy using oil liquefied gas fuel Device processed, increases auto cost.And methanol gasoline can simultaneously be used with oil product device, not only save gasoline expense, and And restructuring installation cost can be also saved, it is used alone or be used in mixed way.3, at low cost, raw material is easy compared with ethanol petrol It purchases, derive from a wealth of sources.1. ethyl alcohol (is commonly called as alcohol), it is mainly derived from grain, and material source is single, once hit by a natural calamity, the underproduction, raw material Source just becomes problem, and methanol is the byproduct of the industry productions such as chemical fertilizer and pharmacy, coal, and industrial chemicals conjunction can also be used At price is low simultaneous, and source is extremely wide.2. more than 4000 yuan/ton of ethyl alcohol market price, and methanol is usually no more than 2000 yuan/ton, As many as one times more expensive than methanol of ethyl alcohol.Meanwhile ethanol petrol is that 10% ethyl alcohol is blended into gasoline, and since ethyl alcohol itself is more expensive, vapour Oily price is also more expensive than methanol chemistry raw material, 800 yuan more expensive than methanol gasoline of overall cost ethanol petrol per ton or more.4, production not by Season and size limit.Methanol gasoline can produce throughout the year, compared with the products such as production gasoline, lubricating oil.Without heating, It is produced in pressurization, anhydrous state.Production scale can be according to the decision of the factors such as economic situation, the market of our unit or individual, can be big It can be small.

Use methanol as fuel engine during the work time, still will appear many problems.Such as：Compared to general Steaming is oily, more pentane insolubes can be formed in Alcohol engines machine oil, when pollutant in machine oil（Alcohol, gasoline, water）Increase White greasy filth will be initially formed when to a certain extent, and white greasy filth increases with the increase of pollutant.It is more worth to close Note be：The evaporation latent heat of methanol is higher than regular gasoline, and volatilization is relatively difficult, it is easier to penetrate into lubricating oil.Methanol It penetrates into, on the one hand, the viscosity of oil product can be reduced with dilute lubricating oil；On the other hand, the first that lube oil additive can be infiltrated Alcohol extracts so that lubricating oil rapid deterioration deteriorates, and is then transferred to other than initial contact zone by methanol again and makes cylinder wall top Region generates abrasion, and methanol gasoline has corrosiveness to engine and its parts, should just have very with greater need for lubricating oil Good base number holding capacity, corrosion inhibiting ability and abrasion resistance.CN101705144A provides a kind of for methanol fuel hair The lubricating oil of motivation, it is consisted of the following components in percentage by weight：Metal detergent 2.2%~5.2%, ashless dispersant 3.5% ~6.8%, antioxygen organic amine preservative 0.5%~1.6%, high-temperature antioxidant 0.3%~0.8%, viscosity index improver 6%~1%, Oiliness improver 2.8%~6%, anti-foaming agent 120ppm, metal antirusting agent 0.3%~0.7%, base oil 62.7%~83%, anti-emulsion 0.1% ~0.3%, metal extreme pressure anti-wear additives 1.0%~4%, pour-point depressant 0.3%~0.9%.But the lubricating oil is the problem is that be alkali It is not high to be worth retentivity, abrasion resistance can be caused to decline after long-time use.

Invention content

The purpose of the present invention is：A kind of automobile engine lubricating oil is provided, is derived by the way that pyridines are added in lubricating oil Object, and the fluorine-based acetophenone-O-1 of 4- are added ,-(1 ', 3,4 ,-triazole) methylene oxime makes the abrasion resistance of lubricating oil improve.

A kind of automobile engine lubricating oil includes following component by weight：120~150 parts of base oil, pyridine 0.06~0.12 part of analog derivative, the fluorine-based acetophenone-O-1 of 4-, 0.5~0.8 part of the methylene oxime in-(1 ', 3,4 ,-triazole) have 2~4 parts of machine amine preservative, 0.8~2.4 part of methylbenzotriazole, 0.6~1.2 part of Epoxy polyaniline, methyl-silicone oil 0.003 ~0.008 part, 4~6 parts of dispersant, 3~5 parts of metal detergent, 2~4 parts of antioxidant, 5~8 parts of antiwear agents, corrosion suppression 3~8 parts of preparation；The base oil is selected from two class hydrogenated base oil 500SN, two class hydrogenated base oil 500N, three classes and adds hydrogen-based One or several kinds of mixing in plinth oil 500SN or three classes hydrogenated base oil 500N；The dispersant is selected from mono alkenyl The mixing of one or more of succimide, diene base succimide.

Preferably, include following component by weight：130 parts of base oil, 0.09 part of pyridine derivatives, 4- fluorine Benzoylformaldoxime-O-1,0.6 part of the methylene oxime in-(1 ', 3,4 ,-triazole), 3 parts of organic amine preservative, methylbenzotriazole 1.6 parts, it is 0.9 part of Epoxy polyaniline, 0.005 part of methyl-silicone oil, 5 parts of dispersant, 4 parts of metal detergent, 3 parts of antioxidant, anti- 6 parts of abrasion agent, 5 parts of rust oxidation.

Preferably, the pyridine derivatives are selected from 3,5- lutidines quaternary amine, 2,5- lutidines quaternary amines One or several kinds of mixing in salt or 2,3,5- trimethylpyridine quaternary amines.

Preferably, the organic amine preservative is the one or several kinds in morpholine, monoethanolamine, cyclohexylamine Mixing.

Preferably, the metal detergent is alkyl benzene calcium sulfonate of the base number between 200~400mgKOH/g, described Alkyl benzene calcium sulfonate be carbon atom number linear or branched alkyl group between C10~C20 sulfonic acid calcium salt.

Preferably, the antioxidant is 2,6- DI-tert-butylphenol compounds.

Preferably, the antiwear agents are zinc diaryl dithiophosphates.

Preferably, the rust oxidation is NONIN HS 240.

The preparation method of above-mentioned automobile engine lubricating oil, which is characterized in that include the following steps：

1）By base oil, pyridine derivatives, the fluorine-based acetophenone-O-1 of 4- ,-(1 ', 3,4 ,-triazole) methylene oxime has Machine amine preservative, methylbenzotriazole, Epoxy polyaniline are uniformly mixed, and are stirred after heating, are obtained mixture；

2）1）In methyl-silicone oil, dispersant, metal detergent, antioxidant, wear-resistant is added in obtained mixture Agent, rust oxidation stir after heating, obtain lubricating oil.

Preferably, the step 1）In step, the temperature of heating is 55~65 DEG C, and mixing time is 4~6 hours；It is described Step 2）In step, the temperature of heating is 50~60 DEG C, and mixing time is 2~4 hours.

Advantageous effect

The present invention in lubricating oil by being added pyridine derivatives, and the fluorine-based acetophenone-O-1 of 4- are added ,-(1 ', 3, 4 ,-triazole) methylene oxime, so that the abrasion resistance of lubricating oil is improved.

Specific implementation mode

In Lubricant composition for gasoline engine provided by the invention, mainly include：Base oil, pyridine derivatives, Fluorine-based acetophenone-the O-1 of 4- ,-(1 ', 3,4 ,-triazole) methylene oxime, organic amine preservative, methylbenzotriazole, epoxy Polyaniline, methyl-silicone oil, dispersant, metal detergent, antioxidant, antiwear agents, rust oxidation.

Wherein, the increase of acid value when the addition of pyridine derivatives can effectively be effectively reduced methanol engine burning Caused metal erosion, and then reduce abrasion.The MOLYVAN855 of your object company of model Derby may be used in organic-molybdenum.

The pyridine derivatives being applicable in the present invention can enumerate：3,5- lutidines quaternary amine, 2,5- diformazans One or several kinds of mixing in yl pyridines quaternary amine or 2,3,5- trimethylpyridine quaternary amines.

In the present invention in addition, it is found that the fluorine-based acetophenone-O-1 of 4- are added in lubricating oil ,-(1 ', 3,4 ,-triazole) are sub- Methyloxime can be effectively prevented lubricating oil caused acidity after longtime running and increase.

One or several kinds of mixing of the organic amine preservative in morpholine, monoethanolamine, cyclohexylamine.

Dispersant is selected from the mixing of one or more of mono alkenyl succimide, diene base succimide.

Base oil mentioned in the present invention can be selected from mineral oil and synthetic lubricant fluid or their mixture.It is described Mineral oil in viscosity can from light fraction mineral oil to heavy distillat mineral oil, including saxol and hydrofinishing, it is molten The processed alkane of agent, cycloalkanes and mixing par-affinic-naphthenic types mineral lubricating oil, usually can be selected according to American Petroleum Institute (API) (API) the I classes classified, II classes, Group III base oil, common trade names include I classes 150SN, 600SN, II classes 100N, 150N etc..Synthetic lubricant fluid includes polymerization hydrocarbon ils, alkyl benzene and its derivative, and polymerization hydrocarbon ils specific example includes but unlimited In polybutene, polypropylene, propylene-isobutylene copolymers, the polybutene of chlorination, poly- (1- hexenes), poly- (1- octenes), poly- (the 1- last of the ten Heavenly stems Alkene), common trade names include PAO4, PAO6, PAO8, PAO10 etc., and alkyl benzene and its derivative specific example includes But it is not limited to such as detergent alkylate, Tetradecylbenzene, dinonyl benzene, two (2- ethylhexyls) benzene, alkyl benzene derivate includes Alkylated diphenyl ether and alkylated diphenyl sulfide and its derivative, analog and homologue.The another of synthetic lubricant fluid is suitble to Type is Esters oil, including dicarboxylic acids (such as phthalic acid, succinic acid, alkyl succinic acid and alkenyl succinic acid, maleic acid, nonyl two Acid, suberic acid, decanedioic acid, fumaric acid, adipic acid, linoleic acid dimer, malonic acid, alkyl malonic acid, alkenyl the third two Acid) it is given birth to various alcohol (such as butanol, hexanol, dodecyl alcohol, 2- ethylhexyl alcohols, ethylene glycol, propylene glycol) generation condensation reaction At ester or complex ester.The specific example of these esters includes but not limited to dibutyl adipate, (the 2- ethyl hexyls of decanedioic acid two Base) ester, the just own ester of fumaric acid acid two, dioctyl sebacate, diisooctyl azelate, two different decayl esters of azelaic acid, adjacent benzene two The 2- ethylhexyl diester of formic acid dioctyl ester, didecyl phthalate, decanedioic acid two (larane base) ester, linoleic acid dimer. Another suitable type of synthetic lubricant fluid is fischer tropsch process synthetic hydrocarbon oil and is split by hydroisomerizing plus hydrogen to this synthetic hydrocarbon oil The lube base oil that the process such as change, dewaxing obtain.

The Lubricant composition for gasoline engine of the present invention also contains conventional Lubricant composition for gasoline engine and adds Add agent, to assign miscellaneous function, to provide the gasoline product engine lubricating oil for wherein dispersing or dissolving these additives Composition.For example, can be by the Lubricant composition for gasoline engine and antioxidant, antiwear agents, rust oxidation, anti- Clouding agent, demulsifier, metal deactivator, friction improver, pour point depressant, antifoaming agent, cosolvent, a whole set of package compatibilisers, corruption Corrosion inhibitor, ashless dispersant, dyestuff, extreme pressure agent etc. and their mixture are blended.Various additives are known and can Quotient enough obtains.By common blending program, the vapour of the present invention is prepared using these additives or their similar compound Oil turbine lubricant oil composite.

The example of antioxidant includes but not limited to amine such as diphenylamines, phenyl-alpha-naphthyl-amine, N, bis- (alkylbenzenes of N- Base) amine；With alkylated phenylenediamine；Phenols alkyl phenol such as 2, the 6- DI-tert-butylphenol compounds that for example BHT, space are obstructed, 2,6-, bis- uncles The mixture of butyl-paracresol and they.

Dispersant example includes but not limited to one kind or several in mono alkenyl succimide, diene base succimide The mixing of kind.

The example of metal detergent includes but not limited to that the synthesis sulfonic acid magnesium that base number is 180~350mgKOH/g, base number are The calcium alkylbenzenesulfonate and base number of 10~40mgKOH/g is one or several kinds of in the alkyl phenol calcium of 180~350mgKOH/g Mixture.

The example of antiwear agents includes but not limited to zinc dialkyl dithiophosphate and zinc diaryl dithiophosphates, phosphorus Sour aryl ester and aryl phosphite, the ester of sulfur-bearing, phosphorus sulphur compound, metal or ashless dithiocar-bamate, xanthan Hydrochlorate, alkyl thioether etc. and their mixture.

The example of rust oxidation includes but not limited to nonionic polyoxyalkylene agents such as polyoxyethylene lauryl base Ether, polyoxyethylene higher alcohol ether, ethylene nonyl phenyl ether, NONIN HS 240, polyoxyethylene octyl stearyl base Ether, polyoxyethylene oleyl ether, polyoxyethylene sorbitol monostearate, polyoxyethylene 80 sorbitan monooleate and poly- second Glycol monooleate；Stearic acid and other aliphatic acid；Dicarboxylic acids；Metallic soap；Aliphatic acid amine salt；The metal salt of heavy sulfonic acid；It is more The inclined carboxylate of first alcohol；Phosphate；(short chain) alkenyl succinic acid；The nitrogen containing derivative of their partial ester and they；The alkane of synthesis Arylsulphonate is such as the dinonylnaphthalene sulfonic acid salt of metal；With their mixture.The amount of the rust oxidation can be about 0.01wt%~about 10wt%.

By any method known to the person skilled in the art for being used to prepare petrol engine lubricating oil, can prepare The Lubricant composition for gasoline engine of the present invention.Each composition can be added in any order and in any way.It can be used Any suitable mixing or dispersing apparatus are blended, mix or dissolve the composition.Using blender, blender, disperser, Mixer (such as planetary-type mixer and double planetary mixer), grinder (such as colloid mill, ball mill or sand milling Machine) or any other mixing known in the art or dispersing apparatus come implement it is described be blended, mixing or dissolving.

Embodiment 1

Engine lubricating oil, made by following component by weight：Two 120 parts of class hydrogenated base oil 500N, 2, 0.06 part of 5- lutidines quaternary amine, the fluorine-based acetophenone-O-1 of 4-, 0.5 part of the methylene oxime in-(1 ', 3,4 ,-triazole), a second 2 parts of hydramine, 0.8 part of methylbenzotriazole, 0.6 part of Epoxy polyaniline, 0.003 part of methyl-silicone oil, mono alkenyl succimide 4 Part, 3 parts of octadecyl benzenesulfonic acid calcium of the base number between 500~600mgKOH/g, antioxidant 2,6- DI-tert-butylphenol compounds 2 Part, 5 parts of antiwear agents zinc diaryl dithiophosphates, 3 parts of rust oxidation NONIN HS 240.

Preparation method：

1）By base oil, pyridine derivatives, the fluorine-based acetophenone-O-1 of 4- ,-(1 ', 3,4 ,-triazole) methylene oxime has Machine amine preservative, methylbenzotriazole, Epoxy polyaniline are uniformly mixed, and are stirred 4 hours, are mixed after being warming up to 55 DEG C Object；

2）1）In methyl-silicone oil, dispersant, metal detergent, antioxidant, wear-resistant is added in obtained mixture Agent, rust oxidation stir 2 hours after being warming up to 50 DEG C, obtain lubricating oil.

Embodiment 2

Engine lubricating oil, made by following component by weight：Two 150 parts of class hydrogenated base oil 500N, 2, 0.12 part of 5- lutidines quaternary amine, the fluorine-based acetophenone-O-1 of 4-, 0.8 part of the methylene oxime in-(1 ', 3,4 ,-triazole), a second 4 parts of hydramine, 2.4 parts of methylbenzotriazole, 1.2 parts of Epoxy polyaniline, 0.008 part of methyl-silicone oil, diene base succimide 6 Part, 5 parts of octadecyl benzenesulfonic acid calcium of the base number between 500~600mgKOH/g, antioxidant 2,6- DI-tert-butylphenol compounds 4 Part, 8 parts of antiwear agents zinc diaryl dithiophosphates, 8 parts of rust oxidation NONIN HS 240.

Preparation method：

1）By base oil, pyridine derivatives, the fluorine-based acetophenone-O-1 of 4- ,-(1 ', 3,4 ,-triazole) methylene oxime has Machine amine preservative, methylbenzotriazole, Epoxy polyaniline are uniformly mixed, and are stirred 6 hours, are mixed after being warming up to 65 DEG C Object；

2）1）In methyl-silicone oil, dispersant, metal detergent, antioxidant, wear-resistant is added in obtained mixture Agent, rust oxidation stir 4 hours after being warming up to 60 DEG C, obtain lubricating oil.

Embodiment 3

Engine lubricating oil, made by following component by weight：Two 130 parts of class hydrogenated base oil 500N, 2, 0.09 part of 5- lutidines quaternary amine, the fluorine-based acetophenone-O-1 of 4-, 0.6 part of the methylene oxime in-(1 ', 3,4 ,-triazole), a second 3 parts of hydramine, 1.6 parts of methylbenzotriazole, 0.9 part of Epoxy polyaniline, 0.005 part of methyl-silicone oil, mono alkenyl succimide 5 Part, 4 parts of octadecyl benzenesulfonic acid calcium of the base number between 500~600mgKOH/g, antioxidant 2,6- DI-tert-butylphenol compounds 3 Part, 6 parts of antiwear agents zinc diaryl dithiophosphates, 5 parts of rust oxidation NONIN HS 240.

Preparation method：

1）By base oil, pyridine derivatives, the fluorine-based acetophenone-O-1 of 4- ,-(1 ', 3,4 ,-triazole) methylene oxime has Machine amine preservative, methylbenzotriazole, Epoxy polyaniline are uniformly mixed, and are stirred 5 hours, are mixed after being warming up to 60 DEG C Object；

2）1）In methyl-silicone oil, dispersant, metal detergent, antioxidant, wear-resistant is added in obtained mixture Agent, rust oxidation stir 3 hours after being warming up to 55 DEG C, obtain lubricating oil.

Reference examples 1

With embodiment 3 difference lies in：Pyridine derivatives 2,5- lutidines quaternary amines are not added.

Engine lubricating oil, made by following component by weight：Two 120 parts of class hydrogenated base oil 500N, 4- Fluorine-based acetophenone-O-1,0.6 part of the methylene oxime in-(1 ', 3,4 ,-triazole), 2 parts of monoethanolamine, methylbenzotriazole 0.9 Part, 0.8 part of Epoxy polyaniline, 0.005 part of methyl-silicone oil, 5 parts of mono alkenyl succimide, base number are in 500~600mgKOH/g Between 3 parts of octadecyl benzenesulfonic acid calcium, antioxidant 2,2 parts of 6- DI-tert-butylphenol compounds, antiwear agents diaryldithiophosphate phosphorus 5 parts of sour zinc, 5 parts of rust oxidation NONIN HS 240.

Preparation method：

1）By base oil, the fluorine-based acetophenone-O-1 of 4- ,-(1 ', 3,4 ,-triazole) methylene oxime, organic amine preservative, Methylbenzotriazole, Epoxy polyaniline are uniformly mixed, and are stirred 3 hours after being warming up to 50 DEG C, are obtained mixture；

2）1）In methyl-silicone oil, dispersant, metal detergent, antioxidant, wear-resistant is added in obtained mixture Agent, rust oxidation are stirred 2 hours after being warming up to 45 DEG C, obtain lubricating oil.

Reference examples 2

With embodiment 3 difference lies in：Fluorine-based acetophenone-the O-1 of 4- are not added ,-(1 ', 3,4 ,-triazole) methylene oxime.

Engine lubricating oil, made by following component by weight：Two 120 parts of class hydrogenated base oil 500N, 2, 0.08 part of 5- lutidines quaternary amine, 2 parts of monoethanolamine, 0.9 part of methylbenzotriazole, 0.8 part of Epoxy polyaniline, methyl The octadecyl benzenesulfonic acid calcium 3 of 0.005 part of silicone oil, 5 parts of mono alkenyl succimide, base number between 500~600mgKOH/g Part, antioxidant 2,2 parts of 6- DI-tert-butylphenol compounds, 5 parts of antiwear agents zinc diaryl dithiophosphates, rust oxidation polyoxy second 5 parts of alkene octyl phenyl ether.

1）Base oil, pyridine derivatives, organic amine preservative, methylbenzotriazole, Epoxy polyaniline are mixed equal It is even, it is stirred 3 hours after being warming up to 50 DEG C, obtains mixture；

2）1）In methyl-silicone oil, dispersant, metal detergent, antioxidant, wear-resistant is added in obtained mixture Agent, rust oxidation stir 2 hours after being warming up to 45 DEG C, obtain lubricating oil.

To the lubricating oil being prepared in embodiment and reference examples carried out Pressurized Differential scanning calorimetric test (PDSC), High temperature deposition object qualification test (TEOST-MHT), ASTM D4742 oxide thin layers experiment (TFOUT) and viscosity build experiment (VIT).PDSC set temperatures are 220 DEG C, and it is 285 DEG C that TEOST-MHT experiments, which use ASTM D7097 methods, deposition rod temperature, Reaction time is that for 24 hours, the experimental condition that viscosity build tests (VIT) is 160 DEG C, oxygen flow 5L/h, calculates viscosity build Change rate (the time that Δ v) is 375%.Concrete outcome see the table below 1.

1 lubricant oil composite simulation comparison test of table

Oil sample	PDSC/min	TEOST-MHT/mg	TFOUT/min	VIT-Δv(375%)/h
					Embodiment 1	28.5	22.5	152	93
Embodiment 2	28.6	21.6	153	93
					Embodiment 3	29.5	21.3	165	93
Reference examples 1	26.5	24.5	139	83
					Reference examples 2	22.5	25.2	141	82

As it can be seen from table 1 under 220 DEG C of high temperature, lubricant oil composite effectively increases the oxidation induction period of oil product (PDSC), in reference examples 3 relative in reference examples 2, adding pyridine derivatives 2,5- lutidines quaternary amines in embodiment 3 Salt, the problem of capable of effectively acting as preventing metal from being corroded and leading to abrasion, the deposit production quantity of lubricant oil composite Reduce about 10%.

The results are shown in Table 2 for high temperature wear resistance, and the high temperature of oil product is carried out using high-frequency reciprocating frictional testing machine (HFRR) Wear-resistant experiment, experimental condition are load 1000g, frequency 20Hz, stroke 1mm, 150 DEG C of temperature.Spot distributed test method is 30% program VG engine sludges are added in experiment oil, after ultrasonic disperse 6min, 2h is heated in 200 DEG C of baking ovens, then will Oil droplet measures oil mark dispersion loop diameter and greasy filth circle of dispersion diameter ratio, as dispersion index on filter paper, after 24 hours.Point Scattered index is higher to illustrate that the dispersibility of oil product is better,

Oil sample	High-frequency reciprocating friction test（HFRR）Wear scar diameter/μm	Spot distributed test
			Embodiment 1	242	85
Embodiment 2	246	85
			Embodiment 3	233	87
Reference examples 1	260	79
			Reference examples 2	255	77

As can be seen from the table, the wear scar diameter of the embodiment of the present invention is less than reference examples, shows preferable wear-resistant energy Power.

Lubricant oil composite of the present invention and SJ 20W-50 gasoline engine oils driving contrast test, with the methanol for investigation design Two M100 first are being transformed in lubricating oil of the present invention and SJ 20W/50 reference oils by the applicability of petrol engine special lube Comparison road performance test has been carried out on alcohol automobile, uses M100 methanol fuels.Test miles：Lubricating oil of the present invention is 12000km, SJ 20W-50 gasoline engine oils are 7000km, are analyzed two cars oil sample after experiment.

Test method：GB/T 265 measures oil viscosity, and GB/T 4945 measures oil product acid value, and the measurement of GB/T 17476 makes Wear metal content in used lubricating oil, SH/T 0251 measure oil product base number, and GB/T 260 measures moisture in oil product, GB/T 3536 measures oil flash point, and GB/T 8926 measures oil product pentane insolubes, oil viscosity change rate：Used engine oil is glued Degree subtracts new oil viscosity divided by fresh oil base number is multiplied by 100%.Oil product alkali retentivity：By oil product base number after aging divided by fresh oil base number It is multiplied by 100%.

	Embodiment 1	Embodiment 2	Embodiment 3	Reference examples 1	Reference examples 2
						Acid value	2.31	2.25	2.22	3.05	3.12
Base number	4.21	4.41	4.58	3.52	3.12
						Rate of change in viscosity %	-5.43	-5.15	-5.28	-5.33	-5.16
Basicity conservation rate %	40.15	41.26	43.89	32.12	26.52
						Flash-point DEG C	229	230	238	221	223
Moisture %	0.05	0.05	0.05	0.06	0.05
						Pentane insolubes %	0.12	0.14	0.12	0.19	0.18
Wear metal content（ppm）
						Iron	58.6	57.6	52.1	75.3	83.1
Aluminium	18.8	19.1	16.5	32.3	41.5
						Copper	35.1	31.4	30.1	52.2	45.8

By 3 road performance test analysis result of table it is found that methanol gasoline engine special lube, can effectively neutralize methanol fuel Burn the acid product generated；Compared with regular gasoline machine oil, there is more excellent acid neutralization capacity and base number retentivity；Tool There are preferable wear Characteristics, friction and wear can be reduced to the maximum extent, improves mechanical performance.Embodiment 3 relative to For reference examples 1, pyridine derivatives 2 are added, 5- lutidines quaternary amines can be effectively improved the corruption of resistance to metal Corrosion energy；Fluorine-based acetophenone-the O-1 of 4- ,-(1 ', 3,4 ,-triazole) methylene is added for reference examples 2 in embodiment 3 Oxime can effectively improve base number conservation rate.

Claims (7)

1. a kind of automobile engine lubricating oil, which is characterized in that include following component by weight：Base oil 120~ 150 parts, 0.06~0.12 part of pyridine derivatives, the fluorine-based acetophenone-O-1 of 4- ,-(1 ', 3,4 ,-triazole) methylene oxime 0.5 ~0.8 part, 2~4 parts of organic amine preservative, 0.8~2.4 part of methylbenzotriazole, 0.6~1.2 part of Epoxy polyaniline, first 0.003~0.008 part of base silicone oil, 4~6 parts of dispersant, 3~5 parts of metal detergent, 2~4 parts of antioxidant, antiwear agents 5~ 8 parts, 3~8 parts of rust oxidation；The base oil be selected from two class hydrogenated base oil 500SN, two class hydrogenated base oil 500N, One or several kinds of mixing in three classes hydrogenated base oil 500SN or three classes hydrogenated base oil 500N；The dispersant Mixing selected from one or more of mono alkenyl succimide, diene base succimide；The pyridine derivatives One in 3,5- lutidines quaternary amine, 2,5- lutidines quaternary amine or 2,3,5- trimethylpyridine quaternary amines Kind or several mixing；

The preparation method of the automobile engine lubricating oil, includes the following steps：

1）By base oil, pyridine derivatives, the fluorine-based acetophenone-O-1 of 4- ,-(1 ', 3,4 ,-triazole) methylene oxime, organic amine Preservative, methylbenzotriazole, Epoxy polyaniline are uniformly mixed, and are stirred after heating, are obtained mixture；Wherein, the temperature of heating Degree is 55~65 DEG C, and mixing time is 4~6 hours；

2）1）In methyl-silicone oil, dispersant, metal detergent, antioxidant, antiwear agents, rust is added in obtained mixture Corrosion inhibitor stirs after heating, obtains lubricating oil, wherein the temperature of heating is 50~60 DEG C, and mixing time is 2~4 hours.

2. automobile engine lubricating oil according to claim 1, it is characterised in that：Include by weight such as the following group Point：130 parts of base oil, 0.09 part of pyridine derivatives, the fluorine-based acetophenone-O-1 of 4- ,-(1 ', 3,4 ,-triazole) methylene oxime 0.6 part, 3 parts of organic amine preservative, 1.6 parts of methylbenzotriazole, 0.9 part of Epoxy polyaniline, methyl-silicone oil 0.005 part, point 5 parts of powder, 4 parts of metal detergent, 3 parts of antioxidant, 6 parts of antiwear agents, 5 parts of rust oxidation.

3. automobile engine lubricating oil according to claim 1 or 2, it is characterised in that：The organic amine preservative is One or several kinds of mixing in morpholine, monoethanolamine, cyclohexylamine.

4. automobile engine lubricating oil according to claim 1 or 2, it is characterised in that：The metal detergent is alkali The alkyl benzene calcium sulfonate being worth between 200~400mgKOH/g, the alkyl benzene calcium sulfonate are that carbon atom number is C10~C20 Between linear or branched alkyl group sulfonic acid calcium salt.

5. automobile engine lubricating oil according to claim 1 or 2, it is characterised in that：The antioxidant is 2,6- DI-tert-butylphenol compounds.

6. automobile engine lubricating oil according to claim 1 or 2, it is characterised in that：The antiwear agents are two virtues Base zinc dithiophosphate.

7. automobile engine lubricating oil according to claim 1 or 2, it is characterised in that：The rust oxidation is poly- Ethylene oxide octyl phenyl ether.