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Two-particle nano-magnetic lubricating oil

A nano-magnetic and lubricating oil technology, applied in the field of lubricating oil lubrication preparation and application theory, can solve the problems of reducing friction coefficient, instability, etc., and achieve the effects of improving stability, preventing agglomeration, and promoting stability

Inactive Publication Date: 2013-04-17
DALIAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Scholars at home and abroad have also conducted a lot of research on the lubricating properties of nano-materials. Nano-particles have unique properties. Nano-scale inorganic elemental powders, inorganic salt powders, metal oxide powders, etc. are used as anti-wear and anti-friction additives. Wear and reduce the properties of friction coefficient, these special anti-wear and anti-friction and high load-carrying capacity prove that they can be used as new lubricants and grease anti-wear agents, but the surface of nanoparticles is extremely active, very unstable, and extremely It is easy to combine with other atoms, causing its surface to adsorb, oxidize and agglomerate into large particles, which requires modification of the surface of nanoparticles to obtain satisfactory dispersion performance

Method used

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  • Two-particle nano-magnetic lubricating oil

Examples

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Effect test

Embodiment 1

[0021] The reaction device used in this example is a reaction device commonly used in the art, and the raw materials used are all common commercially available commodities.

[0022] (1) Prepare the preparatory solution: weigh the surfactant polyisobutenylsuccinimide and the carrier liquid white oil according to the mass ratio of 1:8.5, mix the surfactant and the carrier liquid, and ultrasonicate for 15 minutes;

[0023] (2) Install and check the test device: Pour the mixed solution from the previous step into the heating reaction chamber, connect the reaction device, pass inert gas argon and ammonia into the reaction chamber, and observe the bubbles in the gas cylinder to judge whether the gas path is smooth , and remove the air in the reaction chamber; at the same time, turn on the water pump to check whether the waterway is smooth;

[0024] (3) Add iron pentacarbonyl and dicobalt octacarbonyl in the preparatory liquid, the mol ratio of the added iron pentacarbonyl and surfac...

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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 [0001] The invention belongs to the field of functional materials, and in particular relates to the preparation and application theory of lubricating oil lubrication. Background technique [0002] Wear is the main cause of shortened service life of mechanisms and mechanical parts. According to the survey conducted by AsME on 500 typical mechanical parts scrapping situations, about 80% of them are caused by wear and tear. In mechanical engineering, lubrication is the most economical and most commonly used method to reduce wear, reduce wear, improve mechanical efficiency, and prolong the life of parts. By adding lubricant between the two surfaces, the original dry friction becomes boundary friction, mixed friction or even liquid friction, which will greatly reduce the friction phenomenon. [0003] Traditional lubricating oil will leak and splash under the action of gravity and centrifugal force, which will shorten the life of the device, and cause resource wa...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10M161/00C10M141/08
Inventor 吴磊吴鹏李学慧董桂馥
Owner DALIAN UNIV
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