Nano carbon lubricating additive

A technology of lubricating additives and nano-carbon materials, which is applied in the direction of additives, lubricating compositions, petroleum industry, etc., can solve the problems of lubricating performance and friction coefficient reduction that have not been seen yet, and achieve the reduction of friction coefficient, surface wear condition improvement and excellent performance Effect

Inactive Publication Date: 2005-06-29
TSINGHUA UNIV
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Problems solved by technology

Since carbonaceous nanomaterials do not cause significant pollution, it produces carbonaceous nanocarbon spheres (also known as carbon nano-onions) through the action of high-temperature arcs during the discharge of graphite electrodes, which are collected and surface treated to facilitate their lubrication. It can be evenl

Method used

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  • Nano carbon lubricating additive

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Embodiment approach

[0015] (1) The positive output terminal of the power supply of the arc discharge device is connected with the graphite anode 3, the negative output terminal of the power supply is connected with the graphite cathode 4, and put into deionized water 2; the graphite anode 3 is also fed with the graphite electrode Device 1 connection (eg figure 1 shown);

[0016] (2) Set the output parameters of the power supply: the output current density is: 1~2A / mm 2 , Voltage: 16-20V. ;

[0017] (3) Start the power supply, start the graphite electrode feeding device, and use an automatic adjustment device to automatically adjust the feeding speed to keep the arc stable;

[0018] (4) Collect and purify carbonaceous nanosphere products: collect carbonaceous nanospheres by filtration, dehydrate by centrifugation or drying;

[0019] (5) Surface grinding treatment: grinding the nanospheres for 0.5-1 hour;

[0020] (6) Add the collected carbonaceous nanospheres into the lubricating oil at a rat...

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Abstract

Disclosed is a nm carbon lubricity additive belongs to preparing technique of lubricant material, which is made by the following steps: make use of the effect high temperature electric arc of graphite (nm carbon ball ) pole in the discharge course of the graphite (nm carbon ball ) electric arc discharge method to generate carbon graphite (nm carbon ball ), then assemble them to do surface procession and supersonic dispersion, getting the carbon nm ball with diameter of 5-30 nm. Proved by experiment that after adding into carbon nm lubricity additive, its wear resistance is advanced remarkably, the friction coefficient is decreased by more than 60% and the friction coefficient of surface is notably advanced. Besides, with outstanding biological compatibility, it can be used as lubricity additive of elements of machine, biological and medical equipment. Therefore, the invention has significant practical value and potential application in biological and medical equipment field.

Description

technical field [0001] The invention belongs to the lubricating material preparation technology, and particularly relates to a nano-carbon lubricating additive which has good biocompatibility and can be used as a lubricating additive for mechanical parts, biological devices and medical devices. Background technique [0002] Friction and wear widely exist in production and life, which leads to the consumption of a large amount of energy and the failure of a large number of mechanical parts, which has brought huge losses to the national economy. It is estimated that the annual loss of abrasive wear to industrial countries accounts for 1-4% of the gross national product. According to the calculation of Professor Vogelphol of Germany, about 1 / 3 to 1 / 2 of the energy produced in the world is lost in friction and wear. Professor H.P.Jost of the United Kingdom pointed out that there are 30 to 1 / 2 of the energy produced in the world. 50% is consumed in friction and wear, which means...

Claims

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Application Information

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IPC IPC(8): C09C1/44C09C3/00C10M125/02
Inventor 姚可夫
Owner TSINGHUA UNIV
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