CN101148628A - Nano lubricating oil additive - Google Patents
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Abstract
The present invention discloses one kind of nanometer lubricating oil additive, which consists of liposoluble nanometer copper or copper alloy and liposoluble nanometer silica. The nanometer lubricating oil additive of the present invention can realize the self repair of the worn part, and possesses the functions of saving oil, resisting abrasion, reducing noise, decreasing carbon deposit, raising power performance, etc. It has high dispersivity in lubricating oil, high oxidation stability and long term stability, and is favorable to solving different friction and wear problems in different work conditions.
Description
Technical field
The present invention relates to a kind of nano lubricating oil additive, especially relate to a kind of novel lubricating oil additive that contains oil solubility nanometer copper or nanometer copper alloy, reacting nano silicon-dioxide.
Background technology
Lubricating oil is mechanical movement and safeguards indispensable integral part.Along with the raising day by day of working parameters such as the load of modern machinery and equipment, speed, temperature, original low friction compound and anti-wear agent can not satisfy the requirement of its anti-wear and wear-resistant performance fully in the lubricating oil.Since the nineties in 20th century, along with the further investigation of people to nano material and technology, find that nanoparticle has showed the tribological property of a lot of excellences in lubricated field, the nano lubricating oil additive made from these nanoparticles can make the anti-wear and wear-resistant performance of lubricating oil be greatly improved, for the medium-term and long-term unsolved difficult problem in lubricating oil field has been opened up new solution route.
Relevant copper nanoparticle has much as the research of lubricating oil additive, as disclose a kind of lubricating oil additive that contains lipophilic nano copper powder in Chinese patent literature CN1536058A, its component and content are: base oil 90-95%, lipophilic nano copper powder 0.1-10%, dispersion agent 1-20%.Disclose a kind of lipophilic nano copper powder lubricating repairing agent in Chinese patent literature CN1858168A, its component and content are: base oil 90-97%, dispersion agent 0.5-15%, adhesion agent 1-3%, metal oxidation resistance agent 1-5% and copper nanoparticle 20-70 grams per liter.Above-mentioned two kinds of lubricating oil additives all can improve the tribological property of lubricating oil additive, significantly reduce frictional coefficient, reduce wear, and has a self-repair function, yet the shortcoming of its existence is in order to improve nanoparticle because big, the high easy reunion that causes of surfactivity of specific surface area, the shortcoming of dispersion stabilization difference, therefore in lubricating oil additive, added a large amount of dispersion agents, and the existence of dispersion agent and binding agent and metal oxidation resistance agent, make that these lubricating oil additive preparations are complicated, program is various, is unfavorable for its industrial applications; In addition, although a lot of lubricating oil additives have added a large amount of dispersion agents in the prior art, yet still dispersion stabilization is bad, thereby influenced its functions of use.
By discover that nano-oxide works by depositing on surface of friction pair, also has the excellent friction performance, as disclosing a kind of lubricating oil additive and preparation method thereof at Chinese patent literature CN1301319C, its component and content are: the dispersing auxiliary of the base oil of 40-80%, the silicon-dioxide of 0.1-40%, 0.1-50%, the synergistic agent of 0.1-30%.It has good dispersiveness, extreme pressure property and resistance to abrasion, yet the shortcoming of its existence is to contain the dispersion agent of 0.1-50% and the synergistic agent of 0.1-30% in the described lubricating oil additive, based on above-mentioned same reason, the dispersion agent of described additive and the existence of synergistic agent have had a strong impact on its functions of use and industrial applications; In addition, the usage quantity of described lubricating oil additive is also very big, is the 1-10% of lubricating oil total amount, has caused the increase of user cost.
Summary of the invention
For this reason, technical problem to be solved by this invention is to propose a kind ofly not contain dispersion agent and stablizer, but has the nano lubricating oil additive of high stability and good dispersiveness.
Another technical problem to be solved by this invention is to propose a kind of reparation and the good nano lubricating oil additive of abrasion resistance.
For solving the problems of the technologies described above, a kind of nano lubricating oil additive of the present invention, each components contents (by weight percentage) is in the described lubricating oil additive:
Oil solubility nanometer copper 20-99.95%
Reacting nano silicon-dioxide 0.05-10%
Oil-based solvent 0-78%.
Each components contents (by weight percentage) is in the described nano lubricating oil additive:
Oil solubility nanometer copper 60-99.7%
Reacting nano silicon-dioxide 0.3-2%
Oil-based solvent 0-40%.
Described oil solubility nanometer copper is the nanoparticle through the organic compound in-situ-surface modifying, and described organic compound comprises one or more in dialkyl group phosphoric acid and salt, alkyl dithionic acid and the salt thereof.
Described reacting nano silicon-dioxide for the surface through containing the organic compound modified nano silicon of reactive functional groups, organic compound includes organic siloxane, organic carboxyl acid, reactive functional groups comprises amino, two key, epoxy group(ing), sulfydryl.
The method for preparing described nano lubricating oil additive with oil solubility nanometer copper, reacting nano silicon-dioxide and oil-based solvent thorough mixing, heating and insulation, just obtains lubricating oil additive of the present invention.
A kind of nano lubricating oil additive, each components contents (by weight percentage) is in the described lubricating oil additive:
Oil solubility nanometer copper alloy 20-99.95%
Reacting nano silicon-dioxide 0.05-10%
Oil-based solvent 0-78%
Each components contents (by weight percentage) is in the described nano lubricating oil additive:
Oil solubility nanometer copper alloy 60-99.7%
Reacting nano silicon-dioxide 0.3-2%
Oil-based solvent 0-40%
Alloy compositions in the described oil solubility nanometer copper alloy beyond the copper is one or more the combination in zinc, tin, the nickel.
Described oil solubility nanometer copper alloy is the nanoparticle through the organic compound in-situ-surface modifying, and described organic compound comprises one or more in dialkyl group phosphoric acid and salt, alkyl dithionic acid and the salt thereof.
Described reacting nano silicon-dioxide for the surface through containing the organic compound modified nano silicon of reactive functional groups, organic compound includes organic siloxane, organic carboxyl acid, reactive functional groups comprises amino, two key, epoxy group(ing), sulfydryl.
Described oil-based solvent is selected from one or more in the straight or branched alkane that the carbon atom number is 6-12, various lubricant base, the lubricating oil.
The method for preparing described nano lubricating oil additive with oil solubility nanometer copper alloy, reacting nano silicon-dioxide and oil-based solvent thorough mixing, heating and insulation, just obtains lubricating oil additive of the present invention.
The purposes of described nano lubricating oil additive can be used as the additive of multifunctional lubricant and lubricating grease, can also be used as the reparation anti-wear agent of the heavy mechanical equipment oiling system in various vehicles, boats and ships, petrochemical complex, mine.
Technique scheme of the present invention compared with prior art has the following advantages, (1) do not contain any dispersion agent and stablizer in the nano lubricating oil additive of the present invention, its component is oil solubility nanometer copper (or oil solubility nanometer copper alloy) and oil solubility nanometer silicon-dioxide or also comprises oil-based solvent, but have good dispersiveness and stable, be very suitable for industrial applications; (2) the present invention carries out oil solubility nanometer copper (or nanometer copper alloy) and reacting nano silicon-dioxide composite, and the lubricating oil additive of formation combines the composite advantage of organic materials and inorganic materials.Nanometer copper (or nanometer copper alloy) has good self-repair function, can play good antifriction function, and reacting nano silicon-dioxide itself just has good resistance to abrasion, and silicon-dioxide and metal form the composite ceramics surface and play wear-resistant effect; Simultaneously, arranging of the carbochain on silica nanoparticles surface also can be played " hairbrush effect ", lower frictional coefficient, part surface functional group and metal function generate firm attrition resistant composite membrane, under the comprehensive action, embody excellent antifriction antiwear effect, can repair wearing and tearing and scratch surface, prolong engine work-ing life; (3) nano lubricating oil additive of the present invention can reduce oil consumption 5-15%, reduces noise 5-10 decibel, reduces carbon distribution 30-40%; (4) usage quantity is little in actual applications for nano lubricating oil additive of the present invention, and normal usage quantity is the 0.25-1% of lubricating oil total amount, if serious wear can increase consumption, but generally is no more than 1.5% of lubricating oil total amount.
Description of drawings
For the easier quilt of content of the present invention is clearly understood, below according to a particular embodiment of the invention and in conjunction with the accompanying drawings, the present invention is further detailed explanation, wherein
Fig. 1 is the SEM figure of the wear surface of the connecting rod bearing shell repaired of oil solubility nanometer copper;
Fig. 2 is the face distribution situation figure with the corresponding copper of Fig. 1;
Fig. 3 is the SEM figure that adds the connecting rod bearing shell wear surface of oil solubility nanometer copper in the lubricating oil;
Fig. 4 is the SEM figure that does not add the connecting rod bearing shell wear surface of oil solubility nanometer copper in the lubricating oil;
Fig. 5 is the SEM figure of test bloom polishing scratch that adds the reciprocating friction wearing and tearing of RNS-A in the gasoline engine oil;
Fig. 6 is the SEM figure of test bloom polishing scratch that does not add the reciprocating friction wearing and tearing of RNS-A in the gasoline engine oil;
Fig. 7 is the EDS figure that forms with the corresponding surface-element of Fig. 5;
Fig. 8 is the EDS figure that forms with the corresponding surface-element of Fig. 6;
Fig. 9 is the face distribution situation figure that adds the element silicon of the wear surface among the GMO of RNS-A;
Figure 10 is the face distribution situation figure that adds the ferro element of the wear surface among the GMO of RNS-A.
Embodiment
The mechanism of action of nano lubricating oil additive of the present invention:
At first respectively the reparation abrasion resistance and the mechanism of oil solubility nanometer copper (or nanometer copper alloy), reacting nano silicon-dioxide are analyzed, and then the mechanism of action of the nano lubricating oil additive of the present invention be made up of oil solubility nanometer copper (or nanometer copper alloy) and reactive silicon dioxide analyzed.
(1) the reparation abrasion resistance of oil solubility nanometer copper and Analysis on Mechanism (sport car experiment):
With 30ml oil solubility nanometer copper join in the SP Series Gasoline Engines lubricating oil that 3L produces by sino-america joint-venture Beijing sunlight lubricating oil company limited, mix, after time about petrol motor works better two weeks, connecting rod bearing shell take out is analyzed, and with the connecting rod bearing shell of the SP series of lubricant oil that does not add oil solubility nanometer copper relatively.Worn surface records by JSM5600LV type scanning electronic microscope, and corresponding copper coin vegetarian noodles distributes and records by Link ISIS type X-gamma spectrometer.
The SEM pattern of the wear surface of the connecting rod bearing shell for the reparation of oil solubility nanometer copper particulate illustrated in figures 1 and 2 and the face distribution situation of corresponding copper.As can be seen from Figure 1 on wear surface color than the polishing scratch of depths owing to the copper deposition has obtained good reparation.As can be seen from Figure 2, nano-particle of copper deposits on friction surface, repaired the place of wearing and tearing, trace it to its cause, in surface in contact High Temperature High Pressure friction process, the place that the easier reparation of the copper of melting state is less at relative pressure, the degree of wear is dark, thus make the abrasion surface obtain effective for repairing.
Fig. 3 and Fig. 4 are respectively the SEM figure of the connecting rod bearing shell wear surface that adds oil solubility nanometer copper in the lubricating oil and do not add oil solubility nanometer copper, can obviously find out from Fig. 3 and Fig. 4, more smooth through the friction surface that oil solubility nanometer copper is repaired, the wear resistance of friction surface also is greatly improved, and more coarse without the surface element of oil solubility nanometer copper reparation.
The mechanism of action of oil solubility nanometer copper: small-sized nanometer copper has good ductility, in friction process, be penetrated into surface of friction pair, formation is by nanometer copper and the coefficient composite membrane of organic compound, fill up the microscopic pockets of friction surface, nanometer copper and surface of friction pair are under the inducing of heat of friction simultaneously, form " microcell sosoloid " repair layer at wear surface, thereby realize the selfreparing of abrading section.
The reparation of oil solubility nanometer copper alloy and the mechanism of action are identical with oil solubility nanometer copper, do not repeat them here.
(2) abrasion resistance of reacting nano silicon-dioxide and Analysis on Mechanism:
Friction-wear test is carried out on RFT-III type reciprocating friction wear testing machine and MS-800 type four-ball friction and wear test machine.
What the reciprocating friction wearing test was adopted is that line contacts, and experiment condition: even part is the 45# steel, bloom size 8*10*100mm, and steel column is of a size of Φ 8*30mm; Load 300N; 600r/min, fraction time 3h, room temperature.
The contact form that four ball friction-wear tests are adopted is the some contact, and experiment condition: steel ball is a GCr15 bearing steel secondary standard steel ball, and diameter is 12.7mm, and hardness is 5961HRC; 30min under 60min and the load 400N under the load 200N; Rotating speed 1450r/min, room temperature.
RNS-A contains amino reacting nano silicon-dioxide, and RNS-D is the reacting nano silicon-dioxide that contains two keys, and RNS-E is the reacting nano silicon-dioxide that contains epoxy group(ing), and these materials are bought from Henan Province's nano material Engineering Technical Research Centre.
The reactive silicon dioxide nanoparticle is dispersed in the ST5W/30 gasoline engine oil, and massfraction is 0.3%, ultrasonic 5min.
Listed the antiwear and antifriction result after the interpolation 0.3%RNS type reactive silicon dioxide nanoparticle in gasoline engine oil in the table 1.As can be seen from the table, after the interpolation 0.3%RNS-D type reactive silicon dioxide nanoparticle, frictional coefficient (μ) has reduced 42.9% on the reciprocal trier of frictional wear, and abrasion loss has reduced by 68.1%; Under the condition of load for 20N and 40N on the four-ball tester, wear scar diameter (WSD) has reduced 30.9% and 28.9% respectively.RNS-E and RNS-A have same effect, but the decline scope difference.
The tribological property of table 1RNS nanoparticle in GMO
| Reacting nano silicon-dioxide | Reciprocal trier | Four-ball tester WSD (mm) | ||
| μ | -Δw(g) | 20N，60min | 40N，30min | |
| 0 RNS-D RNS-E RNS-A | 0.0455 0.026 0.034 0.027 | 0.0113 0.0036 0.0098 0.0035 | 0.350 0.242 0.273 0.268 | 0.485 0.345 0.373 0.385 |
Fig. 5 and Fig. 6 are respectively the SEM figure of the test bloom polishing scratch surface topography of the reciprocating friction wearing and tearing of adding RNS-A in the gasoline engine oil and not adding RNS-A.Can clearly be seen that from Fig. 5 and Fig. 6 when not adding RNS-A, surperficial polishing scratch is serious, a large amount of grooves that gather, and obvious peeling phenomenon takes place; After adding RNS-A, the friction surface cut significantly alleviates, and ditch dug with a plow is more shallow, and the surface is comparatively level and smooth.With the scanning electronic microscope energy dispersive spectrometry polishing scratch surface-element is analyzed discovery (seeing Fig. 7 and Fig. 8), the element silicon peak has obviously appearred on the EDS spectrogram of the wear surface of steel column, as seen in friction process, transfer has taken place to friction surface in the nanoparticle in the lubricating oil.According to absorption, infiltration and tribo-chemistry viewpoint, be dispersed in the reactive silicon dioxide nanoparticle in the lubricating oil, because its high surface energy, just hydroxyl and the unsaturated residual bond by the surface is adsorbed on the friction surface when friction has just begun, form one deck physical adsorption film, the element in friction process in the nanoparticle is penetrated into the inferior surface of metal or reacts on friction surface, generates firm attrition resistant composite membrane, the metallic surface that will rub separates, and has reduced wearing and tearing.
Fig. 9 and Figure 10 are respectively the element silicon of the wear surface among the GMO that adds RNS-A and the face distribution situation of ferro element.As can be seen from the figure, element silicon comparatively dense place of distribution and the sparse place of ferro element coincide better, and the microcell in serious wear is described, nano powder is filled in the little hole and the damage location of working-surface, thereby plays repair.
(3) mechanism of action of the nano lubricating oil additive of the present invention of oil solubility nanometer copper and reactive silicon dioxide composition:
Oil solubility nanometer copper and reacting nano silicon-dioxide are carried out composite, the agent for repairing abrasion resistance of formation combines the composite advantage of organic materials and inorganic materials.Oil solubility nanometer copper has good self-repair function, can play good antifriction function, and reacting nano silicon-dioxide itself just has good resistance to abrasion, and reactive silicon dioxide and metal form the composite ceramics surface and play wear-resistant effect.Simultaneously, arranging of the carbochain on silica nanoparticles surface also can be played " hairbrush effect ", lowers frictional coefficient, and part surface functional group and metal function generate firm attrition resistant composite membrane.Under the comprehensive action, nano lubricating oil additive of the present invention embodies more excellent antifriction antiwear effect.
Below by specific embodiment (seeing Table 2) the present invention is further detailed, each components contents is all by weight percentage in the lubricating oil additive among following all embodiment.
DNCu-1 is the nanometer copper that dialkyl dithiophosphoric acid is modified in following examples, the nanometer copper that DNCu-2 modifies for dialkyl group phosphoric acid, the copper zinc alloy that DNCu-Z modifies for dialkyl group phosphoric acid salt, the gunmetal that DNCu-S modifies for dialkyl group phosphoric acid, the cupronickel that DNCu-N modifies for dialkyl group phosphoric acid salt;
RNS-A, RNS-D, RNS-E, RNS-Q are respectively the reacting nano silicon-dioxide that contains amino, two key, epoxy group(ing), sulfydryl;
Above raw material is buied from Henan Province's nano material Engineering Technical Research Centre.
Used lubricating oil is Great Wall SE15W/40 gasoline engine oil among the embodiment.
The preparation process lubricant oil additive of embodiment 1-5 is: the raw material among each embodiment is mixed by described weight percentage, stir, be heated to 40 ℃, be incubated 30 minutes, can obtain the lubricating oil additive of each embodiment of the present invention.
The particle diameter of oil solubility nanometer copper, oil solubility nanometer copper alloy and reacting nano silicon dioxide microparticle is 2-100nm in following examples, wherein the particle diameter of oil solubility nanometer copper and oil solubility nanometer copper alloy particle is preferably 2-10nm, and the particle diameter of reacting nano silicon dioxide microparticle is preferably 5-30nm.
Table 2
| Title | Embodiment 1 | Embodiment 2 | Embodiment 3 | |
Embodiment 5 |
| Oil solubility nanometer copper (or alloy) | 99.95％ DNCu-1 | 98.7％ DNCu-Z | 98％ DNCu-2 | 60％ DNCu-S | 20％ DNCu-N |
| Reacting nano silicon-dioxide | 0.05％RNS -A | 1％RNS-D 0.3％ RNS-E | 1％RNS-A， 1％RNS-D | 0.3％ RNS-A， 0.3-RNS- Q | 10％RNS-D |
| Oil-based solvent | 0 | 0 | 0 | 39.4% whiteruss | 78% lubricating oil |
Down the oil soluble energy of lubricating oil of the present invention, abrasion resistance, repairing performance etc. are made analysis by concrete experiment.
The oil soluble energy of lubricating oil additive:
Usually the dispersiveness of inorganic nano-particle in lubricating oil and the stability that have the good friction performance are bad, for investigating the dispersed and stable of lubricating oil additive of the present invention, have selected HVIW H150, HVI S200, three kinds of oil products of 5W/30SJ for use.The result draws the additive of the foregoing description when add-on is 0.1%--2.0%, all is vitreous state in HVIW H150, HVI S200, three kinds of oil products of 5W/30SJ, and prove that greater than 1 year its oil soluble, dispersiveness and stability are all good steady time.
The abrasion resistance of lubricating oil additive (experiment of four balls):
According to the GB3142-82 standard, with four ball methods the extreme pressure and antiwear behavior of nano lubricating oil additive in HVIW H150 base oil of the above embodiment of the present invention measured, the results are shown in Table 3.Testing used four-ball tester is that Britain produces Shell-seta Four-Ball EP Lubricant Tester, and steel ball is secondary standard steel ball (GC15 bearing steel, HRC are 59-61).At room temperature carry out 1480 rev/mins of rotating speeds.
Dosage described in the table 3 is the weight percentage that described additive accounts for the lubricating oil gross weight.
Table 3 four ball commentary valency result (P
BMaximum nothing card is stung and is met)
| Additive | Dosage m% | P B N | Wear scar diameter mm |
| Embodiment 1 | 0.25 | 627.0 | 0.30 |
| 0.5 | 656.6 | 0.29 | |
| 1.0 | 735.0 | 0.31 | |
| Embodiment 2 | 0.25 | 625.0 | 0.30 |
| 0.5 | 656.0 | 0.31 | |
| 1.0 | 708.0 | 0.30 | |
| Embodiment 3 | 0.25 | 637.0 | 0.30 |
| 0.5 | 666.2 | 0.30 | |
| 1.0 | 742.0 | 0.31 | |
| |
0.25 | 567.0 | 0.36 |
| 0.5 | 582.6 | 0.35 | |
| 1.0 | 603.0 | 0.35 | |
| Embodiment 5 | 0.25 | 630.0 | 0.30 |
| 0.5 | 660.6 | 0.31 | |
| 1.0 | 722.0 | 0.31 | |
| HVIW H150 base oil | No any additives | 460.6 | 0.60 |
By table 3 result as can be seen: the lubricating oil additive of embodiment 1-3 can improve the P of oil product effectively in HVIW H150 base oil
BValue has extreme pressure property preferably, and along with the increase of additive capacity, the P of oil product
BValue increases thereupon, and wear scar diameter reduces thereupon.
The wear-resistant repairing performance of lubricating oil (wear-resistant experimental machine):
Wear-resistant machine by the dynamo-electric limited liability company in Divine Land, Wuhan is tested, test philosophy is: on the described wear-resistant machine rotor and stator are set, add the lubricating oil additive that to test between stator and the rotor, adopting the mode of adding the counterweight reinforcing to increase between stator and the rotor loads, between stator and the rotor during serious wear mutually card sting, characterize the abrasion resistance of lubricating oil additive thus by the weight of counterweight.
Commodity in use lubricating oil is tested the load that can carry as blank in this experiment, and the nano lubricating oil additive with embodiment after card is stung adds in the blank lubricating oil, the amount of additive is 0.5%, repairs, and moves 30 seconds, the load that test can be carried the results are shown in Table 4.
Table 4 rattling machine repairing performance is estimated
| Lubricating oil types | Card is stung load | Repair the back bearing load |
| Blank | 2 | |
| Card is stung the back adds embodiment 1 in blank additive | ＞10 | |
| Card is stung the back adds embodiment 2 in blank additive | ＞10 | |
| Card is stung the back adds embodiment 3 in blank additive | ＞10 |
As can be seen from Table 4, the nano lubricating oil additive that adds the embodiment of the invention 1,2,3 can improve the wear-resistant repairing performance of machine and the load of carrying significantly.
Nano lubricating oil additive of the present invention also can be used as main equipment oiling systems such as various vehicles, boats and ships and Petro-Chemical Machinery and mining machinery and gets energy-saving reparation anti-wear agent mainly as the additive of multifunctional lubricant, lubricating grease.Nano lubricating oil additive of the present invention can directly use, and also can use with the composite back of base oil, lubricating oil or lubricating grease.
Obviously, the foregoing description only is for example clearly is described, and is not the qualification to embodiment.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here need not also can't give exhaustive to all embodiments.And conspicuous variation of being extended out thus or change still are among the protection domain of the invention.
Claims (15)
1. nano lubricating oil additive, it is characterized in that: each components contents (by weight percentage) is in the described lubricating oil additive:
Oil solubility nanometer copper 20-99.95%
Reacting nano silicon-dioxide 0.05-10%
Oil-based solvent 0-78%.
2. nano lubricating oil additive according to claim 1 is characterized in that: each components contents (by weight percentage) is in the described lubricating oil additive:
Oil solubility nanometer copper 60-99.7%
Reacting nano silicon-dioxide 0.3-2%
Oil-based solvent 0-40%.
3. nano lubricating oil additive according to claim 1 and 2, it is characterized in that: described oil solubility nanometer copper is the nano-particle of copper through the organic compound in-situ-surface modifying, and described organic compound comprises one or more in dialkyl group phosphoric acid and salt, alkyl dithionic acid and the salt thereof.
4. according to claim 1,2 or 3 described nano lubricating oil additives, it is characterized in that: described reacting nano silicon-dioxide is that the surface is through containing the organic compound modified nano silicon of reactive functional groups, organic compound includes organic siloxane or organic carboxyl acid, and reactive functional groups comprises amino, two key, epoxy group(ing) or sulfydryl.
5. according to claim 1,2,3 or 4 described nano lubricating oil additives, it is characterized in that: described oil-based solvent is selected from one or more in the straight or branched alkane that the carbon atom number is 6-12, various lubricant base, the lubricating oil.
6. prepare the method for the described nano lubricating oil additive of claim 1-5, it is characterized in that:, just obtain lubricating oil additive of the present invention oil solubility nanometer copper, reacting nano silicon-dioxide and oil-based solvent thorough mixing, heating and insulation.
7. according to the purposes of the described nano lubricating oil additive of claim 1-5, it is characterized in that: can be used as the additive of multifunctional lubricant and lubricating grease, can also be used as the reparation anti-wear agent of the heavy mechanical equipment oiling system in various vehicles, boats and ships, petrochemical complex, mine.
8. nano lubricating oil additive, it is characterized in that: each components contents (by weight percentage) is in the described lubricating oil additive:
Oil solubility nanometer copper alloy 20-99.95%
Reacting nano silicon-dioxide 0.05-10%
Oil-based solvent 0-78%.
9. nano lubricating oil additive according to claim 8 is characterized in that: each components contents (by weight percentage) is in the described lubricating oil additive:
Oil solubility nanometer copper alloy 60-99.7%
Reacting nano silicon-dioxide 0.3-2%
Oil-based solvent 0-40%.
10. it is characterized in that according to Claim 8 or 9 described nano lubricating oil additives: the alloy compositions in the described oil solubility nanometer copper alloy beyond the copper is one or more the combination in zinc, tin, the nickel.
11. any described nano lubricating oil additive according to Claim 8-10, it is characterized in that: described oil solubility nanometer copper alloy is the nanoparticle through the organic compound in-situ-surface modifying, and described organic compound comprises one or more in dialkyl group phosphoric acid and salt, alkyl dithionic acid and the salt thereof.
12. any described nano lubricating oil additive according to Claim 8-11, it is characterized in that: described reacting nano silicon-dioxide is that the surface is through containing the organic compound modified nano silicon of reactive functional groups, organic compound includes organic siloxane or organic carboxyl acid, and reactive functional groups comprises amino, two key, epoxy group(ing) or sulfydryl.
13. any described nano lubricating oil additive according to Claim 8-12 is characterized in that: described oil-based solvent is selected from one or more in the straight or branched alkane that the carbon atom number is 6-12, various lubricant base, the lubricating oil.
14. prepare the method for the described nano lubricating oil additive of claim 8-13, it is characterized in that:, just obtain lubricating oil additive of the present invention with oil solubility nanometer copper alloy, reacting nano silicon-dioxide and oil-based solvent thorough mixing, heating and insulation.
15. the purposes of described nano lubricating oil additive according to Claim 8-13, it is characterized in that: can be used as the additive of multifunctional lubricant and lubricating grease, can also be used as the reparation anti-wear agent of the heavy mechanical equipment oiling system in various vehicles, boats and ships, petrochemical complex, mine.
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| CN102272277A (en) * | 2008-12-30 | 2011-12-07 | 3M创新有限公司 | Lubricant composition and method of forming |
| CN102492523A (en) * | 2011-12-13 | 2012-06-13 | 大连交通大学 | Mixed nanometer lubricating grease additive and application thereof |
| CN103074125A (en) * | 2013-01-09 | 2013-05-01 | 余姚市好啊节能科技有限公司 | Special-effect tablet for gasoline and diesel |
| CN103484204A (en) * | 2013-08-29 | 2014-01-01 | 中国石油化工股份有限公司 | Lubricating grease containing modified silica component and preparation method of lubricating grease |
| CN104119989A (en) * | 2014-07-21 | 2014-10-29 | 上海海联润滑材料科技有限公司 | Oil-soluble light-colored nano copper preparation as well as preparation method and application thereof |
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2007
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| CN108907182A (en) * | 2018-07-09 | 2018-11-30 | 河南大学 | A kind of water solubility Cu@SiO2Nanoparticle and its preparation method and application |
| CN108907182B (en) * | 2018-07-09 | 2020-06-23 | 河南大学 | Water-soluble Cu @ SiO2 nano particle and preparation method and application thereof |
| CN111234899A (en) * | 2020-03-06 | 2020-06-05 | 青岛康普顿石油化工有限公司 | Organic nano friction reducing agent and preparation method and application thereof |
| CN112920883A (en) * | 2021-03-02 | 2021-06-08 | 上海霁望新材料科技有限公司 | Preparation method of extreme pressure antiwear lithium-based grease |
| CN113913234A (en) * | 2021-11-15 | 2022-01-11 | 北京汉诺威自控技术有限公司 | Engine repairing agent and preparation method thereof |
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