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Organic modification method for improving dispersity of graphite phase carbon nitride in lubricating oil

A graphite phase carbon nitride, organic modification technology, applied in the petroleum industry, lubricating compositions, additives, etc., can solve the problems of low compatibility between graphite phase carbon nitride and lubricating oil, reduce sedimentation, Improved dispersion effect and prevention of by-products

Pending Publication Date: 2021-09-28
无锡烯创科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of the present invention is to provide a method for improving the dispersion of graphite phase carbon nitride in lubricating oil by organic modification, which solves the problem of low compatibility between modified graphite phase carbon nitride and lubricating oil in the prior art The problem

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  • Organic modification method for improving dispersity of graphite phase carbon nitride in lubricating oil
  • Organic modification method for improving dispersity of graphite phase carbon nitride in lubricating oil

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Embodiment 1

[0021] The organic modification method for improving the dispersibility of graphite phase carbon nitride in lubricating oil comprises the following steps: firstly, a certain amount of long carbon chain organic carboxylic acid, triethylamine, 1-ethyl-(3-diethylamine) Methylaminopropyl) carbodiimide hydrochloride (EDC.HCL) and 1-hydroxybenzotriazole (HOBT) were mixed into a certain amount of organic solvent, stirred in advance for several hours at room temperature, and then added graphite phase nitrogen The carbonized carbon is heated and refluxed for several hours at a certain temperature, and finally filtered, washed and dried to obtain an organically modified graphitic carbon nitride.

Embodiment 2

[0029] The long carbon chain organic carboxylic acid has a carbon chain atomic number of 12 to 30, the mass ratio of the long carbon chain carboxylic acid to the graphite phase carbon nitride is (10 to 30): 1, and the triethylamine to the graphite phase nitrogen The mass ratio of carbonized carbon is (5~20):1, the mass ratio of EDC.HCL to graphite phase carbon nitride is (2~20):1, and the mass ratio of HOBT to graphite phase carbon nitride is (2~15): 1. The organic solvent is N,N-dimethylformamide (DMF), and the mass ratio of DMF to graphitic carbon nitride is (600~1000): 1, and the organic modification method is as follows: After the chain organic carboxylic acid, EDC.HCL, HOBT, and triethylamine are mixed and added into DMF, the activation time is 1-3h under pre-stirring at room temperature. In the modification method, the heating and refluxing temperature after adding graphite phase carbon nitride is 40-40 80℃, heating time is 4~12h.

[0030] Dissolve 0.72g lauric acid (lo...

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Abstract

The invention relates to the technical field of lubricating oil preparation, in particular, relates to an organic modification method for improving dispersity of graphite phase carbon nitride in lubricating oil, and solves the problem of low compatibility of modified graphite phase carbon nitride and lubricating oil in the prior art. The organic modification method for improving the dispersity of the graphite phase carbon nitride in the lubricating oil comprises the steps: firstly, mixing a certain amount of long carbon chain organic carboxylic acid, triethylamine, 1-ethyl-(3-dimethylaminopropyl)carbodiimide hydrochloride (EDC.HCL) and 1-hydroxybenzotriazole (HOBT), and adding the mixture into a certain amount of organic solvent. According to the preparation method, an organic long carbon chain is introduced into the surface of graphite phase carbon nitride by utilizing amidation reaction, so that the problem that the graphite phase carbon nitride is difficult to be compatible with an organic matrix is solved, and the compatibility of the graphite phase carbon nitride with oils and lipids is greatly improved. The organically modified graphite phase carbon nitride can be stably dispersed in base oil for a long time, and can be used as a lubricating additive to be applied to the field of lubrication.

Description

technical field [0001] The invention relates to the technical field of lubricating oil preparation, in particular to an organic modification method for improving the dispersibility of graphite phase carbon nitride in lubricating oil. Background technique [0002] Friction and wear are ubiquitous in nature. Adding anti-wear and anti-friction additives to lubricating oil and grease is an effective way to improve the lubricating performance of lubricating oil and grease. At present, there are two main categories of anti-wear and anti-friction additives: one is oil-soluble additives, which are usually oil-soluble macromolecules containing polar and active elements such as sulfur, phosphorus, and chlorine. However, lubricating oils containing such additives cannot Adapt to harsh working conditions, and elements such as sulfur and phosphorus will cause great corrosion, pollution and other pressures to the environment. Second, solid additives, especially materials with lamellar str...

Claims

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Application Information

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IPC IPC(8): C10M159/12C10M141/06C10N30/04
CPCC10M159/12C10M141/06C10M2201/061C10M2201/14C10M2215/04C10M2215/14C10M2215/223C10M2207/126C10M2203/1025C10M2207/129C10M2207/128C10N2030/04C10N2020/02
Inventor 王继刚仲召快勾学军
Owner 无锡烯创科技有限公司
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