Nano carbon material composite additive based on surface modification and preparation method thereof

A nano-carbon material and composite additive technology, applied in the nano field, can solve the problems such as the dispersion stability not reaching the desired effect, and achieve the effects of avoiding post-processing problems, reducing the usage amount, and improving the dispersion stability.

Active Publication Date: 2021-02-02
XINJIANG INST OF ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the above-mentioned technologies, the method of surface grafting of nano-carbon materials is mainly used to improve the dispersion stability of nano-carbon materials in lubricating base oil to a certain extent, but its dispersion stability still does not achieve the desired effect

Method used

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  • Nano carbon material composite additive based on surface modification and preparation method thereof
  • Nano carbon material composite additive based on surface modification and preparation method thereof
  • Nano carbon material composite additive based on surface modification and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0061] A preparation method of a nano-carbon ball composite additive based on surface modification, comprising the following steps:

[0062] 1 g of acidified carbon nanospheres was added to 60 g of ricinoleic acid, and 0.09 g of catalyst zinc oxide was added. The reaction was carried out at 200° C. under vacuum conditions for 10 hours; after the reaction, it was naturally cooled, and after ultrasonic dispersion at room temperature for 15 minutes, the surface-modified nano-carbon material-ricinoleic acid composite anti-wear additive was obtained.

Embodiment 2

[0064] A method for preparing a carbon nanotube composite additive based on surface modification, comprising the following steps:

[0065] 1 g of acidified carbon nanotubes were added to 60 g of ricinoleic acid, and 0.09 g of catalyst zinc oxide was added. The reaction was carried out at 200° C. under vacuum conditions for 10 hours; after the reaction was completed, it was naturally cooled, and after ultrasonic dispersion at room temperature for 15 minutes, the surface-modified carbon nanotube-ricinoleic acid composite antiwear additive was obtained.

Embodiment 3

[0067] A preparation method of a graphene oxide composite additive based on surface modification, comprising the steps:

[0068] 1 g of acidified graphene oxide was added to 60 g of ricinoleic acid, and 0.09 g of catalyst zinc oxide was added. The reaction was carried out at 200° C. under vacuum conditions for 10 hours; after the reaction, it was naturally cooled, and after ultrasonic dispersion at room temperature for 15 minutes, the surface-modified graphene oxide-ricinoleic acid composite anti-wear additive was obtained.

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Abstract

The invention relates to the technical field of nanometer, and particularly discloses a nanometer carbon material composite additive based on surface modification and a preparation method thereof. Thenano carbon material composite additive based on surface modification comprises a nano carbon material, ricinoleic acid and a catalyst, the nano carbon material is acidized, the acidized nano carbonmaterial has rich hydroxyl, and the molecular structure of the ricinoleic acid has both hydroxyl and carboxyl. In the presence of the catalyst, the ricinoleic acid can be subjected to esterification reaction with hydroxyl on the surface of the nano carbon material to graft ricinoleic acid molecules on the surface of the nano carbon material; meanwhile, the ricinoleic acid molecules are self-polymerized to form polyricinoleic acid with wear resistance and dispersion effects. Experimental results show that the modified nano carbon material ricinoleic acid composite anti-wear additive system hasmore excellent anti-wear performance.

Description

technical field [0001] The invention relates to the field of nanotechnology, in particular to a nanocarbon material composite additive based on surface modification and a preparation method thereof. Background technique [0002] As an anti-wear additive for lubricating oil, nano-carbon material can fully interact with the friction surface as the dispersed phase dispersed in the lubricating oil, and its "ball bearing" function of supporting the load can greatly reduce the friction coefficient. Many experimental studies have shown that spherical or tubular carbon nanoparticles have great advantages in the application of lubricating oil tribology. These nano-carbon materials will form a protective film on the metal sliding surface, and through the action of "micro-ball" or "roller", surface strengthening and self-healing can improve the anti-wear performance of lubricating base oils. In addition, nano-carbon material has good thermal stability and anti-oxidation properties, wh...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10M161/00C10N30/06
CPCC10M161/00C10M2201/14C10M2209/102
Inventor 管述哲刘宣池董孝宇张佳何芳刘锡林
Owner XINJIANG INST OF ENG
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