Nano diamond-containing additive of lubricating oil for engine

A lubricating oil additive and nano-diamond technology, which is applied in the direction of additives, petroleum industry, lubricating compositions, etc., can solve problems such as product process instability, and achieve the effects of ensuring high-efficiency performance, improving friction efficiency, and improving suspension stability

Inactive Publication Date: 2017-03-08
TIANJIN DIMAI AIKE TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] 1) The instability of the process of obtaining the product

Method used

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  • Nano diamond-containing additive of lubricating oil for engine
  • Nano diamond-containing additive of lubricating oil for engine
  • Nano diamond-containing additive of lubricating oil for engine

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0031] Embodiments of the manufacturing method of the present invention will be specifically described below in conjunction with the accompanying drawings.

[0032] Case 1. Friction couple workbench test specification friction disc No. 45 steel, linear velocity 0.6 m / s, (Table 1). 1-Commercial lubricating oil И20А; 2-Oil additive + commercial lubricating oil И20А. The average diameter of nano-diamond particles is 150 nanometers. Experimental results Figure 1-6 .

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Abstract

The invention discloses a preparation method of a nano diamond-containing additive of lubricating oil for an engine. The method comprises the following steps of first, using a nano diamond as organic ligand through adding ethylenediaminetetraacetic acid (EDTA), and obtaining nano diamond particles which are high in purity and moreover have favorable liquid suspension properties through the treatment on impurities on the surfaces of non-diamond particles and the nano diamond particles; afterwards, screening out the nano diamond particles of which the particle sizes are 20 to 170 nanometers through a centrifuge; finally, dispersing the additive into No. 10 white oil through an ultrasonic wave, wherein the proportion of the nano diamond is 7 to 10 percent, and the proportion of a basic white oil component is 90 to 93 percent. The nano diamond applied to a product can form a free disperse system in oil, and has high liquid suspension stability; Zeta electric potential is from -40 to -85 millivolts. Through the achievement of the preparation method, the purity and the suspension stability of the nano diamond particles are improved; the high-efficiency service performance of the lubricating oil is guaranteed. The lubricating oil can be applied to the lubrication on all metallic friction surfaces. The preparation method has the functions of improving friction efficiency, repairing the wear of friction surfaces and prolonging the service life of the lubricating oil.

Description

technical field [0001] The invention relates to an engine lubricating oil additive containing nano-diamond, which is characterized in that it contains nano-diamond particles with high liquid suspension stability. Widely used in engine lubrication of various equipment. It has the functions of improving friction efficiency, repairing friction surface wear, and improving the service life of lubricating oil. Background technique [0002] Presently, known petroleum-based antiwear agents include 0.2-0.5% hyperdisperse diamond, which contains diamond compound and vinyl succinimide as a dispersant. The low concentration of nano-diamonds and high concentration of graphite particles, and insufficient sedimentation stability are the disadvantages of the above-mentioned anti-wear agents, which will seriously affect its shelf life and lead to unstable friction properties. [0003] The metal additive is the technical resolution closest to the present invention, and the additive contains...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10M125/02C10M169/04C10N40/25C10N30/06
CPCC10M125/02C10M169/04C10M2201/041C10M2203/1025C10M2203/1065C10N2030/06C10N2040/10C10N2040/25
Inventor 王伟
Owner TIANJIN DIMAI AIKE TECH CO LTD
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