CN1632082A - Lubricating oil containing sheet nano graphite - Google Patents
Lubricating oil containing sheet nano graphite Download PDFInfo
- Publication number
- CN1632082A CN1632082A CN 200410067742 CN200410067742A CN1632082A CN 1632082 A CN1632082 A CN 1632082A CN 200410067742 CN200410067742 CN 200410067742 CN 200410067742 A CN200410067742 A CN 200410067742A CN 1632082 A CN1632082 A CN 1632082A
- Authority
- CN
- China
- Prior art keywords
- graphite
- lubricating oil
- sheet nano
- nano graphite
- sheet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Lubricants (AREA)
Abstract
The invention lubricating oil containing slice-shaped nm graphite, has the percentage of mass: slice-shaped nm graphite 0.0025-0.015%, sorbitan oleate 0.3-1.2%, and the others are basic oil. The invention has outstanding performance of wear resistance and caring, low friction coefficient and stable lubricating property, can be applied widely in engineering machine as lubricant, which can reduce the energy cost and prolong the service life of mechanical elements.
Description
Technical field
The invention belongs to lubricating oil.
Background technology
Characteristics such as specific surface area is big because nano material has, high diffusibility, fusing point reduction, so nano material is applied in the friction system as the novel lubricating material of additive preparation, will play the antiwear and antifriction effect in the mode that is different from conventional additive.This class novel lubricating material not only can form the film that one deck is easily sheared at surface of friction pair, reduce frictional coefficient, but also can be to because the micro-damage that wearing and tearing occur, tiny crack etc. carry out filling up and repairing to a certain degree, reach the work-ing life of prolonged mechanical equipment, the purpose of economical with materials cost.
Characteristics such as that graphite has is high temperature resistant, anticorrosive, self-lubricating, from its crystalline structure, be with strong covalence key combination between carbon-carbon, and the effect between graphite linings and layer belongs to weak Van der Waals force, therefore graphite is made time spent graphite linings aspect cleavage is taken place easily being subjected to external force, cleavage surface occurs and plays lubrication.As good solid lubricant and slip additive, graphite has been widely used in the lubricated of mechanical means and complete processing.And be the dispersion stabilization of graphite particulate in lubricating oil to the key application of oil base graphite lubricating oil (GLO), therefore, the super-refinement of graphite particulate and the use of dispersion agent are most important.Because common graphite particle diameter is bigger, so can not guarantee graphite particle suspending stabilized lastingly in lubricating oil, reduced the stability of lubricating oil, the antiwear and friction reduction property of lubricating oil is reduced.
Summary of the invention
The objective of the invention is to provide a kind of fastness to wear and load-carrying properties good, frictional coefficient is low, stable performance and the lower-cost lubricating oil that contains sheet nano graphite.
The lubricating oil that contains sheet nano graphite of the present invention is characterized in that its component and mass percentage content are:
Sheet nano graphite 0.0025～0.015%
Sorbitan olein 0.3～2.1%
All the other are base oil.
Preferred content is:
Sheet nano graphite 0.005%
Sorbitan olein 1.0%
All the other are base oil.
In order further to improve the dispersion stabilization of sheet nano graphite in base oil, its sheet diameter is 0.5 μ m～1.5 μ m, and thickness is between 10～30nm.
The preparation method who contains the lubricating oil of sheet nano-graphite of the present invention adopts the stirring ball-milling method, and graphite dry powder is added the water making beating, and medium ball is the chromium steel ball, and ratio of grinding media to material is 8: 1, and rotating speed 250r/min obtains sheet nano graphite behind the stirring ball-milling.Employing decantation and heating under diminished pressure are removed the moisture content in the sheet nano graphite, by mass percentage 0.0025～0.015% sheet nano graphite and 0.3～2.1% dispersion agent sorbitan olein (class of department 80) are joined in the base oil then.
Sheet nano graphite in the lubricating oil of the present invention itself keeps lamellated crystalline structure, can be under certain load effect, and cleavage takes place in aspect easily, and slides along cleavage surface, thus lubricate.Add dispersion agent sorbitan olein (class of department 80) in the base oil, make the molecular radical coating graphite of sorbitan olein, make sheet nano graphite in base oil, have advantages of excellent stability and dispersity, simultaneously in friction process, can make the easier uniform settling of sheet nano graphite be adsorbed on surface of friction pair, improve the fastness to wear and the load-carrying properties of oil product, reduce its frictional coefficient.This lubricating oil can be widely used in and make lubricant in the engineering machinery, reduces the consumption of the energy, the work-ing life of prolonged mechanical part.
Embodiment
Embodiment 1
Adopt the stirring ball-milling method, graphite dry powder is added the water making beating, medium ball is the chromium steel ball, and ratio of grinding media to material is 8: 1, rotating speed 250r/min, and obtaining diameter behind the stirring ball-milling is 0.5 μ m～1.5 μ m, thickness is the sheet nano graphite of 10～30nm.In graphite, add a spot of base oil, extrude the most of moisture content in the graphite, topple over fall after, adopt heating under diminished pressure to remove moisture content remaining in the sheet nano graphite again, by mass percentage 0.005% sheet nano graphite and 1.0% dispersion agent sorbitan olein are joined in the base oil then, obtain the lubricating oil that contains the sheet nano-graphite of the present invention.
Embodiment 2
The preparation of sheet nano graphite is with embodiment 1.The composition of lubricating oil contains 0.0025% sheet nano graphite by mass percentage, 0.3% sorbitan olein, and all the other are base oil.
Embodiment 3
The preparation of sheet nano graphite is with embodiment 1.The composition of lubricating oil contains 0.015% sheet nano graphite by mass percentage, 2.1% sorbitan olein, and all the other are base oil.
On MS-800 type four-ball friction and wear test machine, estimate the extreme pressure and the abrasion resistance of lubricating oil.Use diameter to be 12.7mm, hardness GCr15 steel ball as HRC60.Last non seizure load P
BTest according to GB3142-90.Test conditions is: load 196N, rotating speed 1500r/min.Adopt pin-disc type frictional wear machine to measure the frictional coefficient of lubricating oil, the pin sample is the GCr15 steel, diameter 5mm, and hardness HRC60, the dish sample is 45 steel of hardness HRC44, pin sample and dish specimen surface roughness are 0.5 μ m (R
a).Test conditions is load 100N, and linear velocity is 0.15m/s, writes down frictional coefficient automatically.The test result that contains the sheet nano-graphite lubricant of above-mentioned three embodiment sees Table 1.
Table 1
| The oil product title | Sorbitan olein content (%) | Sheet nano graphite content (%) | ??P B(N) | ????WSD(mm) |
| Base oil | ??0.0 | ??0.000 | ??372 | ????0.61 |
| Embodiment 1 | ??1.0 | ??0.005 | ??460.2 | ????0.33 |
| Embodiment 2 | ??0.3 | ??0.0025 | ??401.8 | ????0.38 |
| Embodiment 3 | ??2.1 | ??0.015 | ??411.6 | ????0.36 |
By table 1 as seen, the lubricating oil that contains the sheet nano-graphite of the present invention has following characteristics:
1, fastness to wear and extreme pressure property height.Table 1 shows the last non seizure load P of base oil and lubricating oil of the present invention
BComparison with steel ball mill spot diameter (WSD) value behind the friction 30min.Compare with base oil, add the last non seizure load P of the lubricating oil of sheet nano graphite
BIt is about 8.01～23.7% that value has improved, and extreme pressure property obviously improves; It is about 37.7～45.9% that steel ball mill spot diameter (WSD) value has descended, and fastness to wear obviously improves.The lubricating oil that contains the sheet nano-graphite of the present invention has improved the fastness to wear and the load-carrying properties of oil product.
2, frictional coefficient is low.Average friction coefficient (μ) is 0.096 to compare when lubricated with base oil, and the average friction coefficient (μ) that contains the lubricating oil of sheet nano-graphite of the present invention is 0.027.
3, lubricity is stable.The lubricating oil of sheet nano-graphite that contains of the present invention is because behind the adding sorbitan olein (class of department 80); the molecular radical coating graphite of sorbitan olein; make sheet nano graphite in base oil, have advantages of excellent stability and dispersity; in friction process, can make the sheet nano graphite uniform settling be adsorbed on surface of friction pair; help forming effective protective membrane; frictional coefficient fluctuating range after long-time the use between the friction pair is little, and lubricity is stable.
Claims (3)
1. lubricating oil that contains sheet nano graphite is characterized in that its component and mass percentage content are:
Sheet nano graphite 0.0025～0.015%
Sorbitan olein 0.3～2.1%
All the other are base oil.
2. lubricating oil according to claim 1 is characterized in that its component and mass percentage content are:
Sheet nano graphite 0.005%
Sorbitan olein 1.0%
All the other are base oil.
3. lubricating oil according to claim 1 and 2, the diameter that it is characterized in that sheet nano graphite are 0.5 μ m～1.5 μ m, and thickness is between 10～30nm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410067742 CN1260330C (en) | 2004-10-29 | 2004-10-29 | Lubricating oil containing sheet nano graphite |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410067742 CN1260330C (en) | 2004-10-29 | 2004-10-29 | Lubricating oil containing sheet nano graphite |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1632082A true CN1632082A (en) | 2005-06-29 |
| CN1260330C CN1260330C (en) | 2006-06-21 |
Family
ID=34846685
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200410067742 Expired - Fee Related CN1260330C (en) | 2004-10-29 | 2004-10-29 | Lubricating oil containing sheet nano graphite |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1260330C (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101812351A (en) * | 2010-04-01 | 2010-08-25 | 江苏工业学院 | Lubricating oil additive based on single-layer or more-layer graphene |
| CN101029264B (en) * | 2007-04-03 | 2010-10-13 | 张书达 | Modified gear oil |
| CN102061213A (en) * | 2010-12-31 | 2011-05-18 | 梁凌志 | Motor vehicle lubricating oil and production method thereof |
| CN101270313B (en) * | 2008-04-18 | 2011-06-15 | 燕山大学 | Method for preparing sheet shaped nano-graphite lubricating oil additive agent |
| CN104109569A (en) * | 2013-04-22 | 2014-10-22 | 安炬科技股份有限公司 | Graphite nanosheet-containing lubricating oil |
| CN114317072A (en) * | 2020-09-29 | 2022-04-12 | 惠州金永信五金制品有限公司 | Lubricant suitable for metal stamping |
-
2004
- 2004-10-29 CN CN 200410067742 patent/CN1260330C/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101029264B (en) * | 2007-04-03 | 2010-10-13 | 张书达 | Modified gear oil |
| CN101270313B (en) * | 2008-04-18 | 2011-06-15 | 燕山大学 | Method for preparing sheet shaped nano-graphite lubricating oil additive agent |
| CN101812351A (en) * | 2010-04-01 | 2010-08-25 | 江苏工业学院 | Lubricating oil additive based on single-layer or more-layer graphene |
| CN101812351B (en) * | 2010-04-01 | 2013-08-14 | 江苏工业学院 | Lubricating oil additive based on single-layer or more-layer graphene |
| CN102061213A (en) * | 2010-12-31 | 2011-05-18 | 梁凌志 | Motor vehicle lubricating oil and production method thereof |
| CN102061213B (en) * | 2010-12-31 | 2013-07-03 | 梁凌志 | Motor vehicle lubricating oil and production method thereof |
| CN104109569A (en) * | 2013-04-22 | 2014-10-22 | 安炬科技股份有限公司 | Graphite nanosheet-containing lubricating oil |
| CN114317072A (en) * | 2020-09-29 | 2022-04-12 | 惠州金永信五金制品有限公司 | Lubricant suitable for metal stamping |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1260330C (en) | 2006-06-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Bhaumik et al. | Analyses of anti-wear and extreme pressure properties of castor oil with zinc oxide nano friction modifiers | |
| Gupta et al. | Fullerence particles as an additive to liquid lubricants and greases for low friction and wear | |
| Rapoport et al. | Mechanism of friction of fullerenes | |
| Raina et al. | Tribological investigation of diamond nanoparticles for steel/steel contacts in boundary lubrication regime | |
| Schroeder et al. | Failure mode in sliding wear of PEEK based composites | |
| CN104031722B (en) | A kind of lubricating oil | |
| Deshmukh et al. | On the friction and wear performance of boric acid lubricant combinations in extended duration operations | |
| Lei et al. | Tribological behavior of fullerene–styrene sulfonic acid copolymer as water-based lubricant additive | |
| CA2837217C (en) | Surface conditioning nanolubricant | |
| Reyes et al. | Effect of 2D boron nitride nanoplate additive on tribological properties of natural oils | |
| CN1260330C (en) | Lubricating oil containing sheet nano graphite | |
| CN108690698A (en) | A kind of high-effect wear-resistant Saving Energy by Lubrication fluid composition and preparation method thereof | |
| Deters et al. | Tribology | |
| Xie et al. | Effects of combined additions of SiO 2 and MoS 2 nanoparticles as lubricant additive on the tribological properties of AZ31 magnesium alloy | |
| Thapliyal et al. | Influence of Cu nanofluids on the rolling contact fatigue life of bearing steel | |
| Hussain et al. | Tribological study of sunflower TMP ester and silica nanoparticles additives for hydrodynamic journal bearing application under boundary lubrication condition | |
| Shahabuddin et al. | Study on the friction and wear characteristics of bio-lubricant synthesized from second generation jatropha methyl ester | |
| Mannan et al. | Tribological properties of steel/steel, steel/DLC and DLC/DLC contacts in the presence of biodegradable oil | |
| CN101244458A (en) | Metallic nano-particle surface amendment | |
| Choi et al. | Investigation of anti-wear and extreme pressure properties of nano-lubricant using graphite and Ag nanoparticles | |
| JP4444680B2 (en) | Lubricant composition | |
| Pena-Paras et al. | Experimental evaluation of the tribological behaviour of CeO2 nanolubricants under extreme pressures | |
| JP2925449B2 (en) | Hot rolling lubricant and method of supplying hot rolling lubricant | |
| Wu et al. | Lubrication studies with alumina‐on‐alumina, steel‐on‐steel, and steel‐on‐alumina bearing systems | |
| Morimoto | Effect of molybdenum disulphide upon the friction and wear in ceramic–steel pair |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20060621 Termination date: 20101029 |