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Carbon quantum dot-loaded nano material lubricating additive and preparation method thereof

A technology of lubricating additives and carbon quantum dots, applied in the direction of additives, lubricating compositions, petroleum industry, etc., can solve the problems of universal exploration of carbon quantum dots, to maintain shape and performance, avoid surfactants and modification The use of agents, to solve the effect of layer upon layer

Active Publication Date: 2022-07-05
SHANGHAI GREENSUN ENVIRONMENTAL PROTECTION TECH CO LTD +1
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Problems solved by technology

However, carbon quantum dots and their hybrid nanomaterials have a certain polarity, and most reports apply them to certain polar lubricants, without the universality of carbon quantum dots in various base oils. To explore, by combining the respective advantages of carbon quantum dots and layered materials, the use of synergistic effects to prepare new composite materials for the field of tribology also has great research value

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  • Carbon quantum dot-loaded nano material lubricating additive and preparation method thereof

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Embodiment Construction

[0026] In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, but not to limit the present invention.

[0027] Wash the 25ml reactor lining with ultrapure water and dry it for later use. Weigh 1 g of citric acid and 0.5 g of n-phenyl-p-phenylenediamine into a beaker, add 16 ml of ultrapure water and stir to dissolve it, and then transfer it to the reaction kettle. The reaction kettle was capped and tightly sealed, put into a blast drying oven, and reacted at 150 ° C for 4 hours. Naturally cooled to room temperature with the furnace to obtain a yellow transparent liquid, that is, a solution containing carbon dots. The uniform suspension was filtered through a cellulose filter membrane (0.22 μm pore size), and furthe...

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Abstract

The invention discloses a carbon quantum dot-loaded nano material lubricating additive and a preparation method thereof. The preparation method comprises the following steps: step 1, preparing antioxidant carbon quantum dots by utilizing one-step hydrothermal synthesis; 2, nickel hydroxide powder is prepared through a chemical precipitation method; and 3, ultrasonically stripping nickel hydroxide in an NMP (N-Methyl Pyrrolidone) solvent by using the carbon quantum dots as an auxiliary stripping agent to form the nickel hydroxide composite material loaded with the carbon quantum dots. According to the method, the carbon quantum dots are creatively used as a stripping aid, the layered nickel hydroxide material is ultrasonically stripped in the NMP solvent by controlling the temperature, and the stripping efficiency of the layered nickel hydroxide is improved, so that the dispersion performance of the layered nickel hydroxide in an oil product is greatly improved. A diphenylamine functional group grafted on the surface of the carbon quantum dot can be used as an antioxidant for slowing down oxidative cracking of an oil product, and meanwhile, the carbon quantum dot loaded nickel hydroxide composite material prepared after ultrasonic exfoliation can effectively improve the lubricating property of the oil product when being used as a lubricating oil additive due to the friction synergistic effect of carbon sphere particles and a layered material. The preparation method of the material is simple to operate, wide in raw material source, safe, pollution-free and easy for large-scale production.

Description

technical field [0001] The invention belongs to the technical field of composite materials, in particular to a nickel hydroxide composite material lubricating additive loaded with carbon quantum dots and a preparation method thereof. Background technique [0002] Nickel hydroxide belongs to a two-dimensional layered structure. Since the layered structure material is easy to slip between layers and has a certain strength in the layer, it can become a potential lubricating material. At present, it has been studied that adding nickel hydroxide as an additive to the base oil can form a friction film on the friction surface to improve the lubricating performance. However, the layered structure material is easy to accumulate between layers during the friction process, so that it will hinder the friction between the friction pairs, and the dispersion in the base oil is poor, so the dispersion of the layered structure material in the oil is improved. Performance and tribological pr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10M141/00
CPCC10M141/00C10M2201/041C10M2201/062
Inventor 董耀华汪舞潇魏晶晶赵敏敏陈振远季江婷
Owner SHANGHAI GREENSUN ENVIRONMENTAL PROTECTION TECH CO LTD
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