CN104974818A - Method for inhibiting reduction of lubricating property of ester lubricant due to carbon smoke pollution - Google Patents
Method for inhibiting reduction of lubricating property of ester lubricant due to carbon smoke pollution Download PDFInfo
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- CN104974818A CN104974818A CN201510416795.9A CN201510416795A CN104974818A CN 104974818 A CN104974818 A CN 104974818A CN 201510416795 A CN201510416795 A CN 201510416795A CN 104974818 A CN104974818 A CN 104974818A
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Abstract
The invention provides a method for inhibiting reduction of the lubricating property of ester lubricant due to carbon smoke pollution, and relates to the field of lubricant additives. Nano molybdenum disulfide and dialkyl dithio-zinc phosphate which are in spherical structures are used as compound additives to be added into the ester lubricant, so that adverse effects of carbon smoke on the ester lubricant can be inhibited, the lubricating property of the ester lubricant can be promoted at the same time, and particularly when the lubricant is not polluted or is slightly polluted by the carbon smoke (such as at the initial stage of using), the lubricating property of the nano molybdenum disulfide with the spherical structure can be brought into full play. By using the nano molybdenum disulfide and dialkyl dithio-zinc phosphate with the spherical structures as compound components, the problem that the lubricating property of the ester lubricant is reduced due to carbon smoke pollution is solved, so that the method is suitable for the condition that the carbon smoke content of the ester lubricant is not more than 3%.
Description
Technical field
The present invention relates to a kind of method that lubricating oil in esters lubricity suppressing carbon smoke pollution to cause declines, relate to lubricating oil additive field.Specifically with the nano level molybdenumdisulphide of globosity and zinc dialkyl dithiophosphate for complex additive, through mechanical dispersion to by the lubricating oil in esters of carbon smoke pollution, thus solve the problem that soot causes lubricating oil in esters lubricity to decline.
Background technology
Primary solids particle emission when soot is fuel combustion, accounts for 60% ~ 70% of fuel draining particulate matter total amount, can pollute, thus threaten the healthy of the mankind in a large amount of soot emissions to air to atmospheric environment.The soot major part produced when fuel burns within the engine is discharged, and also has small portion can enter in the oiling system of vehicle, produces pollute lubricating oil.Soot at surface of friction pair meeting Preferential adsorption, thus affects the Function of wear preventive additive in lubricating oil, causes engine scuffing to increase, and the drain period of lubricating oil shortens.In addition, soot produces mutual antagonistic action together with wear preventive additives such as zinc dialkyl dithiophosphates in lubricating oil, in lubricating oil, add the function that zinc dialkyl dithiophosphate not only can not give play to its wear preventive additive, even abrasion loss is than also large when not adding.Therefore the disadvantageous effect that a kind of method produces to reduce carbon smoke pollution oil lubrication performance is needed.Nearest work shows, add the lubrication failure (CN103865614A) that inorganic fluoride can suppress carbon smoke pollution lubricating oil to cause, the method in lubricating oil, adds micron order or nano grade inorganic fluorochemical as borontrifluoride iron, amine or inorganic salts dispersion agent, can overcome by the method the problem that oil lubrication performance that carbon smoke pollution causes reduces preferably.But the method provides the carbon smoke pollution suppressing method of whiteruss and CD SAE 15W-40 formula oil, do not relate to lubricating oil in esters, fluorochemical used in addition may have a negative impact to environment.
Molybdenumdisulphide is traditional solid lubricant, can be used as the additive of lubricating grease.The lubricity of molybdenumdisulphide is that other lubricant is difficult to replace, but molybdenumdisulphide limits its application within the engine as the problem being difficult to disperse during lubricating oil additive, and gradually replace by organic molybdenum additive, therefore need to find a kind of effective means and molybdenumdisulphide be applied in lubricating oil additive.
Summary of the invention
In order to overcome the above-mentioned defect existed in prior art, the composite additive that the suppression carbon smoke pollution that an object of the present invention there are provided a kind of superior performance causes lubricating oil in esters lubricity to decline, meanwhile, present invention also offers a kind of method suppressing carbon smoke pollution to cause lubricating oil in esters lubricity to decline.
For realizing this object, present invention employs following technical scheme: the composite additive that a kind of lubricating oil in esters lubricity suppressing carbon smoke pollution to cause declines, for adding soot content to not higher than in the lubricating oil in esters of 3%, be made up of the nano level molybdenumdisulphide of globosity and zinc dialkyl dithiophosphate, the nano level molybdenumdisulphide of globosity and lubricating oil in esters mass ratio are 0.01 ~ 5: 100, and the mass ratio of zinc dialkyl dithiophosphate and lubricating oil in esters is 0.01 ~ 5: 100.
Preferably, the nano level molybdenumdisulphide of described globosity is the molybdenumdisulphide ball shaped nano particulate that mean diameter is less than 100nm, can there is part and reunite between particulate.
A kind of method that lubricating oil in esters lubricity suppressing carbon smoke pollution to cause declines, the nano level molybdenumdisulphide of globosity and zinc dialkyl dithiophosphate are added in lubricating oil in esters, suppress soot to the disadvantageous effect of lubricating oil in esters, promote the lubricity of lubricating oil in esters, give full play to the lubricity of the nano molybdenum disulfide of globosity.
Concrete steps are as follows:
1., raw material is prepared by following proportioning
The nano level molybdenumdisulphide of globosity and lubricating oil in esters mass ratio are 0.01 ~ 5: 100;
The mass ratio of zinc dialkyl dithiophosphate and lubricating oil in esters is 0.01 ~ 5: 100;
2., the nano level molybdenum disulfide powder of globosity is joined in lubricating oil in esters, again zinc dialkyl dithiophosphate is added in above-mentioned system, obtain stable suspension after mechanical dispersion after, carbon smoke pollution can be suppressed the disadvantageous effect of lubricating oil in esters lubricity, and above-mentioned composite additive can promote the lubricity of lubricating oil in esters to a certain extent simultaneously.
Confirm through overtesting, add in the lubricating oil in esters by carbon smoke pollution by the nano level molybdenumdisulphide of globosity, the favorable lubricating property of the nano level molybdenumdisulphide of globosity can be subject to the destruction of soot, and the lubricity of base oil is not improved substantially.Added to by zinc dialkyl dithiophosphate in the lubricating oil in esters containing soot, the lubricity of base oil is not only improved, and even worsens.But, the nano level molybdenumdisulphide of zinc dialkyl dithiophosphate and globosity is together added to after in the lubricating oil in esters by carbon smoke pollution, nano level molybdenumdisulphide good dispersion in Esters oil of globosity, now soot disappears to the disadvantageous effect of base oil, and lubricity is better than pure base oil.The present invention is simple to operate, not only can eliminate the disadvantageous effect of soot to lubricating oil in esters lubricity, also can promote the lubricity of lubricating oil in esters to a certain extent simultaneously.
The composite additive that the lubricating oil in esters lubricity that suppression carbon smoke pollution of the present invention causes declines, utilize the nano level molybdenumdisulphide of globosity and zinc dialkyl dithiophosphate to be composite component, solve the problem that carbon smoke pollution lubricating oil in esters causes lubricity to decline, in applicable lubricating oil in esters soot content not higher than 3% situation.
The method that the lubricating oil in esters lubricity that suppression carbon smoke pollution of the present invention causes declines, that the nano level molybdenumdisulphide of globosity and zinc dialkyl dithiophosphate are together added in lubricating oil in esters, soot can be suppressed the disadvantageous effect of lubricating oil in esters, the lubricity of lubricating oil in esters can also be promoted simultaneously, particularly not being subject to carbon smoke pollution or (as used the initial stage) when polluting slight at lubricating oil, the lubricity of the nano level molybdenumdisulphide of globosity can be given full play to.
Accompanying drawing explanation
Fig. 1 is nano level molybdenumdisulphide and the lubricity test result (friction mode: ball dish of zinc dialkyl dithiophosphate composite additive in ester class base oil (diisooctyl sebacate, i.e. DOS) of the globosity obtained by method provided by the invention; Test method: high-frequency reciprocating).As can be seen from the figure, when DOS is as lubricant, mill 357 μm, spot, frictional coefficient 0.1810; When being subject to the carbon smoke pollution of 0.5%, frictional coefficient is 0.1165, more much lower than the frictional coefficient of DOS base oil, but abrasion loss significantly increases (from 351 μm → 506 μm), and the antiwear property of base oil is subject to havoc; When adding the nano level molybdenumdisulphide of globosity in the DOS of carbon smoke pollution, frictional coefficient reaches 0.1889, abrasion loss is 504, shows that the nano level molybdenumdisulphide of globosity does not substantially have anti-wear effect in the DOS of carbon smoke pollution, but also obviously can increase frictional coefficient; When interpolation zinc dialkyl dithiophosphate is in the DOS of carbon smoke pollution, comparatively significantly increasing all appears in frictional coefficient (0.1918) and wear scar diameter (540 μm), shows that soot and zinc dialkyl dithiophosphate exist mutual antagonistic action; But together added to after in the DOS of carbon smoke pollution by the nano level molybdenumdisulphide of zinc dialkyl dithiophosphate and globosity, frictional coefficient obviously drops to the DOS a little less than carbon smoke pollution, and abrasion loss is also reduced to 356 μm.
Embodiment
Embodiment 1
Take the nano level molybdenum disulfide powder of 5 parts of globositys, join 100 parts containing in the diisooctyl sebacate of 0.5% soot, take 1 part of zinc dialkyl dithiophosphate again, add in above-mentioned system, after mechanical dispersion, the nano level molybdenumdisulphide of globosity can stably be dispersed in diisooctyl sebacate, and carbon smoke pollution can be suppressed the disadvantageous effect of lubricating oil in esters lubricity, can also promote the lubricity of lubricating oil in esters simultaneously.(as shown in Figure 1).
Embodiment 2
Take the nano level molybdenum disulfide powder of 0.01 part of globosity, join 100 parts containing in the dioctyl sebacate of 0.05% soot, take 0.01 part of zinc dialkyl dithiophosphate again, add in above-mentioned system, after mechanical dispersion, the nano level molybdenumdisulphide of globosity can stably be dispersed in dioctyl sebacate, and carbon smoke pollution can be suppressed the disadvantageous effect of lubricating oil in esters lubricity, can also promote the lubricity of lubricating oil in esters simultaneously.(result is similar to shown in Fig. 1).
Embodiment 3
Take the nano level molybdenum disulfide powder of 2.5 parts of globositys, join 100 parts containing in the Octyl adipate of 2.5% soot, take 5 parts of zinc dialkyl dithiophosphates again, add in above-mentioned system, after mechanical dispersion, just carbon smoke pollution can be suppressed the disadvantageous effect of lubricating oil in esters lubricity, the lubricity of lubricating oil in esters can also be promoted simultaneously.(result is similar to shown in Fig. 1).
Claims (5)
1. the composite additive of the lubricating oil in esters lubricity decline suppressing carbon smoke pollution to cause, for adding soot content to not higher than in the lubricating oil in esters of 3%, be made up of the nano level molybdenumdisulphide of globosity and zinc dialkyl dithiophosphate, the nano level molybdenumdisulphide of globosity and lubricating oil in esters mass ratio are 0.01 ~ 5: 100, and the mass ratio of zinc dialkyl dithiophosphate and lubricating oil in esters is 0.01 ~ 5: 100.
2. the composite additive of the lubricating oil in esters lubricity decline suppressing carbon smoke pollution to cause as claimed in claim 1, it is characterized in that: the nano level molybdenumdisulphide of described globosity is the molybdenumdisulphide ball shaped nano particulate that mean diameter is less than 100nm can there is part between particulate and reunite.
3. the method for the lubricating oil in esters lubricity decline suppressing carbon smoke pollution to cause, it is characterized in that: the nano level molybdenumdisulphide of globosity and zinc dialkyl dithiophosphate are added in lubricating oil in esters as composite additive, to suppress soot to the disadvantageous effect of lubricating oil in esters, promote the lubricity of lubricating oil in esters, give full play to the lubricity of the nano molybdenum disulfide of globosity.
4. the method for the lubricating oil in esters lubricity decline suppressing carbon smoke pollution to cause as claimed in claim 3, is characterized in that: concrete steps are as follows:
1., raw material is prepared by following proportioning
The nano level molybdenumdisulphide of globosity and lubricating oil in esters mass ratio are 0.01 ~ 5: 100;
The mass ratio of zinc dialkyl dithiophosphate and lubricating oil in esters is 0.01 ~ 5: 100;
2., the nano level molybdenum disulfide powder of globosity is joined in lubricating oil in esters, again zinc dialkyl dithiophosphate is added in above-mentioned system, obtain stable suspension after mechanical dispersion after, carbon smoke pollution can be suppressed the disadvantageous effect of lubricating oil in esters lubricity, and above-mentioned composite additive can promote the lubricity of lubricating oil in esters to a certain extent simultaneously.
5. the method that the lubricating oil in esters lubricity that the suppression carbon smoke pollution as described in claim 3 or 4 causes declines, it is characterized in that: the nano level molybdenumdisulphide of described globosity is the molybdenumdisulphide ball shaped nano particulate that mean diameter is less than 100nm can there is part between particulate and reunite.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510416795.9A CN104974818B (en) | 2015-07-16 | 2015-07-16 | A kind of method that lubricating oil in esters greasy property declines caused by suppression carbon smoke pollution |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109913290A (en) * | 2019-03-22 | 2019-06-21 | 合肥学院 | A kind of synthetic method of lubricating oil in esters that making catalysis and lubricating action using molybdenum disulfide nano particle |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109913290B (en) * | 2019-03-22 | 2022-01-18 | 合肥学院 | Synthetic method of ester lubricating oil with catalysis and lubrication effects of molybdenum disulfide nanoparticles |
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| CN104974818B (en) | 2017-07-28 |
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Effective date of registration: 20220928 Address after: 519090 No. 8, Lianjing Road, nanshaui Town, Jinwan District, Zhuhai City, Guangdong Province (complex building) Patentee after: ZHUHAI MAKHOP TECHNOLOGY CO.,LTD. Address before: 230000 Jinxiu Avenue 99, Hefei Economic and Technological Development Zone, Anhui Province Patentee before: HEFEI University |