CN102002417B - Two-particle nano-magnetic lubricating oil - Google Patents
Two-particle nano-magnetic lubricating oil Download PDFInfo
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- CN102002417B CN102002417B CN 201010563286 CN201010563286A CN102002417B CN 102002417 B CN102002417 B CN 102002417B CN 201010563286 CN201010563286 CN 201010563286 CN 201010563286 A CN201010563286 A CN 201010563286A CN 102002417 B CN102002417 B CN 102002417B
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Abstract
The invention relates to two-particle nano-magnetic lubricating oil. The lubricating oil is prepared by using a method comprising the following steps of: injecting pentacarbonyl iron and cobalt octacarbonyl into the mixture liquid of a surface active agent and carrier liquid under the protection of inert gases and the addition of ammonia gas; heating a reaction system to 80-90 DEG C, starting a direct current high voltage and starting and adjusting the direct current pulse high voltage to be 7kV while the pulse frequency is approximate 63kHz; carrying out plasma activation on the ammonia gas at approximate 200 DEG C for 130-150min; and then, cooling the reaction system to below 40 DEGC after the reaction is finished and collecting products. The two-particle nano-magnetic lubricating oil prepared by using the plasma activating method of the invention substitutes Co particles with strong magnetic capability for one part of Fe particles aiming at the reasons of low saturation magnetization intensity of original single-particle nano-magnetic lubricating oil, poor stability of nano magnetic particles, and the like, thereby enhancing the saturation magnetization intensity of the magnetic particles and improving the saturation magnetization intensity of the magnetic lubricating oil.
Description
Technical field
The invention belongs to field of functional materials, be specifically related to preparation and the utility theory of oil lubrication.
Background technology
Wearing and tearing are the major causes that shorten mechanism and mechanical component work-ing life.The investigation of 500 kinds of typical mechanical component situations of scrapping being done according to AsME shows, wherein accounts for 80% because of what wearing and tearing caused.In mechanical engineering, lubricated is to reduce to wear and tear, alleviate wearing and tearing, raising mechanical efficiency, most economical, the most frequently used method of part life that prolongs.By between two surfaces, adding lubricant, make original metal to-metal contact become boundary friction, mixed friction even liquid friction, will greatly alleviate friction phenomenon.
Phenomenons such as leaking, splash can appear in conventional lubrication oil under the effect of gravity, centrifugal force, these all can shorten the life-span of device, and cause the wasting of resources and environmental pollution.
Over nearly 20 years, nanotechnology has obtained studying widely and using.Chinese scholars has also been carried out large quantity research to the lubricity of nano material, nanoparticle has unique nano level inorganic simple substance powder of performance, the inorganic salt powder, metal-oxide powders etc. are as wear-resistant, antifriction additive, have wear-resistant, reduce the character of frictional coefficient, these special antiwear and antifriction and high bearing capacities, prove that they can be used as novel lubricating grease anti-wear agent, but the surface of nanoparticle has high activity, very unstable, very easily be combined with other atoms, cause its surface adsorption, oxidation and be agglomerated into large particulate, this needs again nano-particle surface is carried out modification to obtain satisfied dispersing property.Preparation and surface modification for nanoparticle develops several different methods at present.
Outstanding along with the energy, environmental problem, Sustainable development for ecotope, in recent years tribological field need to be with the new direction of green, efficient, multi-functional development as lubrication technology immediately following the epoch, demand has good abrasion resistance, high bearing capacity, wear surface is had the novel nano lubricating oil of certain wearing and tearing repairing effect, environmentally safe or less contamination, uses needs to satisfy high-tech.
Nano magnetic lubricating oil is a kind of new liq functional materials, and it is the new lubricant that is disperseed at conventional lubrication oil camber by the single nanoparticle of the tensio-active agent coating of organic long-chain.Utilize its magnetic that under non-homogeneous external magnetic field, shows and flowability, can be that magnetic source consists of magnetic loop by applying permanent magnet or electromagnet, magnetic lubricating oil is remained on the needed position, do not reveal in the greasing, can prevent outside contamination again, consumption is few and reliable, and this is the principal character of nano magnetic lubricating oil.
Summary of the invention
The object of the present invention is to provide a kind of novel two particle nano-magnetic lubricating oils and preparation method thereof.Of the present invention pair of particle nano-magnetic lubricating oil prepares by following method:
(1) preparation preparation liquid: take by weighing tensio-active agent and carrier fluid according to 1: 8.5 ratio of mass ratio, with tensio-active agent with after carrier fluid mixes, supersound process 15 clocks;
(2) pour preparation liquid into reaction chamber, pass into rare gas element and ammonia;
(3) add pentacarbonyl iron and cobalt octacarbonyl in preparation liquid, the pentacarbonyl iron that adds and the mol ratio of tensio-active agent are 8.5: 1, and the cobalt octacarbonyl that adds and the mol ratio of tensio-active agent are 1.5: 1;
(4) reacting by heating system temperature to 80～90 ℃ start high direct voltage, start simultaneously the alternating-current pulse high pressure and regulate and control to 7kV, and pulse-repetition is about 63kHz, ammonia is carried out plasma-activated, about 200 ℃ of temperature of reaction, operation 130～150min;
(5) after reaction is finished, reaction system is cooled to below 40 ℃, collects product.
The tensio-active agent that reaches described in the method is PBSI, sodium laurylsulfonate or polyisobutenyl succimide.Preferred polyisobutenyl succimide.
Carrier fluid in the described step (1) is white oil or kerosene.
Rare gas element in the described step (2) is nitrogen or argon gas.Preferred argon gas.
The standby two particle nano-magnetic lubricating oils of the plasma-activated legal system of the present invention are not high for former single particulate nano magnetic lubricating oil saturation magnetization and the stable reason such as bad of nano magnetic particle, replace a part of Fe particle with the strong Co particle of close magnetic energy power, strengthened the saturation magnetization of magnetic particle, therefore the saturation magnetization of magnetic lubricating oil also improves.
Because nano level magnetic particle has huge specific surface energy and the phase suction between the magnetic particle, so that there is nonvolatil congregation in magnetic particle.Therefore, importantly to prevent the magnetic particle reunion, and keep its steady in a long-term dispersion.SURFACTANT ADSORPTION can also reduce the specific surface energy of magnetic particle on the magnetic particle surface, reduce the possibility of reuniting, select suitable tensio-active agent, make it form forever firmly adsorption layer at particle surface, performance electrostatic stabilization effect and sterically hindered stabilization, to be conducive to produce and repel, be conducive to promote the stability of magnetic lubricating oil.Two particle magnetic lubricating oils of the present invention's preparation are the domestic novel surfactant (polyisobutenyl succimide) that there is not yet the preparation magnetic lubricating oil of report, have very long direct-connected, reduce the reunion of nano magnetic particle, improved the stability of magnetic lubricating oil.
Description of drawings
Accompanying drawing 1 width of cloth of the present invention, i.e. preparation method's general flow chart of of the present invention pair of particle nano-magnetic lubricating oil.
Embodiment
The below further specifies technical scheme of the present invention with the form of specific embodiment, but does not limit in any form content of the present invention.
Embodiment 1
Reaction unit that present embodiment uses is this area reaction unit commonly used, and the raw material that adopts is common commercial goods.
(1) preparation preparation liquid: take by weighing tensio-active agent polyisobutenyl succimide and carrier fluid white oil according to 1: 8.5 ratio of mass ratio, with tensio-active agent with after carrier fluid mixes, supersound process 15 clocks;
(2) also check test device is installed: pour the previous step mixed solution into the reacting by heating chamber, the ligation device, pass into rare gas element argon gas and ammonia in reaction chamber, the bubble of observing in the gas cylinder judges whether gas circuit is unimpeded, and gets rid of the air in the reaction chamber; Open again simultaneously water pump and check whether the water route is unimpeded;
(3) add pentacarbonyl iron and cobalt octacarbonyl in preparation liquid, the pentacarbonyl iron that adds and the mol ratio of tensio-active agent are 8.5: 1, and the cobalt octacarbonyl that adds and the mol ratio of tensio-active agent are 1.5: 1;
(4) reacting by heating system temperature to 80～90 ℃, start high direct voltage, starting simultaneously the alternating-current pulse high pressure regulates and control to 7kV, pulse-repetition is about 63kHz, carry out plasma-activated to ammonia, about 200 ℃ of temperature of reaction, operation 130～150min, whole process is in the frozen water state of cooling always;
Step of reaction: with helping hot charging to put reaction chamber heating, when reaction solution rises to about 200 ℃, open water coolant and cool back to fall by reaction liquid and treats in the reaction chamber that temperature drops to about 90 ℃, continue to repeat about this process 1h;
(5) after reaction is finished, reaction system is cooled to below 40 ℃, collects product.
Claims (4)
1. two particle nano-magnetic lubricating oil is characterized in that by following method preparation:
(1) preparation preparation liquid: the ratio according to mass ratio 1:8.5 takes by weighing tensio-active agent and carrier fluid, with tensio-active agent with after carrier fluid mixes, supersound process 15 clocks; Described tensio-active agent is the polyisobutenyl succimide;
(2) pour preparation liquid into reaction chamber, pass into rare gas element and ammonia;
(3) add pentacarbonyl iron and cobalt octacarbonyl in preparation liquid, the pentacarbonyl iron that adds and the mol ratio of tensio-active agent are 8.5:1, and the cobalt octacarbonyl that adds and the mol ratio of tensio-active agent are 1.5:1;
(4) reacting by heating system temperature to 80 ~ 90 ℃ start high direct voltage, start simultaneously the alternating-current pulse high pressure and regulate and control to 7kV, and pulse-repetition is 63kHz, ammonia is carried out plasma-activated, 200 ℃ of temperature of reaction, operation 130 ~ 150min;
(5) after reaction is finished, reaction system is cooled to below 40 ℃, collects product.
2. claimed in claim 1 pair of particle nano-magnetic lubricating oil is characterized in that the carrier fluid in the described step (1) is white oil or kerosene.
3. claimed in claim 1 pair of particle nano-magnetic lubricating oil is characterized in that the rare gas element in the described step (2) is nitrogen or argon gas.
4. claimed in claim 3 pair of particle nano-magnetic lubricating oil is characterized in that the rare gas element in the described step (2) is argon gas.
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| CN 201010563286 CN102002417B (en) | 2010-11-27 | 2010-11-27 | Two-particle nano-magnetic lubricating oil |
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| CN 201010563286 CN102002417B (en) | 2010-11-27 | 2010-11-27 | Two-particle nano-magnetic lubricating oil |
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| CN102002417A CN102002417A (en) | 2011-04-06 |
| CN102002417B true CN102002417B (en) | 2013-04-17 |
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| CN104560301A (en) * | 2014-12-12 | 2015-04-29 | 中国矿业大学 | Mineral oil based magnetorheological fluid for high power transmission and preparation method thereof |
| CN104851547B (en) * | 2015-04-17 | 2017-03-08 | 大连大学 | Sub- nano-magnetic fluid of Fe Co double grains and preparation method thereof |
| CN108003970A (en) * | 2017-12-21 | 2018-05-08 | 贺州宝兴新材料有限公司 | A kind of high-performance melamine resin lubricating oil |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5137652A (en) * | 1989-12-18 | 1992-08-11 | National Research Institute For Metals | Method of manufacturing particle colloid or a magnetic fluid containing metal nitrides |
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5137652A (en) * | 1989-12-18 | 1992-08-11 | National Research Institute For Metals | Method of manufacturing particle colloid or a magnetic fluid containing metal nitrides |
Non-Patent Citations (2)
| Title |
|---|
| 李学慧.纳米磁流体的等离子体制备及其应用基础研究.《中国优秀博硕士学位论文全文数据库（博士）工程科技Ⅰ辑》.2005,(第3期),第三章第41、47、58、68页,第四章第80页. * |
| 李学慧等.氮化铁磁流体的制备.《无机材料学报》.2003,第18卷(第6期),第1345-1350页. * |
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