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Preparation of lubricant oil containing high dispersion fullerene C60

A technology of fullerene and lubricating oil, which is applied in the field of materials, can solve the problems of limiting self-lubricating effect and easy agglomeration, and achieves the effect of excellent lubricating performance

Inactive Publication Date: 2009-07-08
TONGJI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But since C 60 It is nano-sized and easy to agglomerate. Simple mechanical dispersion cannot achieve good results, which limits the C 60 The function of self-lubrication

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] The first step: preparation of hexadecanoic acid derivatives with terminal azidation:

[0022] Weigh 2.56g (0.01mol) of palmitic acid and place it in a single-necked bottle, adjust the reaction temperature of the system to 45°C, slowly add 2.4g of thionyl chloride dropwise, magnetically stir and keep warm for 12h, and distill off excess chlorine under reduced pressure sulfoxide to give hexadecanoyl chloride. Dissolve 4g of hexadecanoyl chloride in 25ml of acetone, and dissolve 3g of sodium azide in 75ml of water. At 5°C, the acetone solution of hexadecanoyl chloride was slowly added dropwise to the aqueous solution of sodium azide, reacted at 10°C for 6 hours, the white solid was filtered out with suction, rinsed repeatedly with distilled water, and dried in vacuum at 25°C to obtain the terminal azide Nitrided hexadecanoic acid derivatives.

[0023] Step 2: Preparation of hexadecanoic acid-modified C 60 (Hexadecanoic Acid-C 60 ):

[0024] Weigh 250mgC 60 Add to 10...

Embodiment 2

[0029] The first step: preparation of octadecanoic acid derivatives with terminal azidation:

[0030] Weigh 2.84g (0.01mol) of octadecanoic acid and place it in a single-necked bottle, adjust the reaction temperature of the system to 45°C, slowly add 2.4g of thionyl chloride dropwise, magnetically stir and keep warm for 12h, and distill off excess chlorine under reduced pressure sulfoxide to obtain octadecanoyl chloride. Dissolve 4g of octadecanoyl chloride in 25ml of acetone, and dissolve 3g of sodium azide in 75ml of water. At 5°C, the acetone solution of octadecanoyl chloride was slowly added dropwise to the aqueous solution of sodium azide, reacted at 10°C for 6 hours, and the white solid was filtered out with suction, rinsed repeatedly with distilled water, and dried in vacuum at 25°C to obtain terminal azide Nitrided octadecanoic acid derivatives.

[0031] Step 2: Preparation of octadecanoic acid-modified C 60 (octadecanoic acid-C 60 ):

[0032] Weigh 250mgC 60 Add...

Embodiment 3

[0037] Step 1: Preparation of eicosanic acid derivatives with terminal azidation:

[0038] Weigh 3.12g (0.01mol) of eicosanic acid and place it in a single-necked bottle, adjust the reaction temperature of the system to 55°C, slowly add 3g of thionyl bromide dropwise, stir magnetically and keep it warm for 12h, distill off excess bromide Sulfoxide to obtain eicosyl bromide. Dissolve 4g of eicosyl bromide in 30ml of acetone, and dissolve 3g of potassium azide in 60ml of water. At 5°C, the acetone solution of eicosyl bromide was slowly added dropwise to the aqueous solution of potassium azide, reacted at 10°C for 10 hours, the white solid was filtered out by suction, rinsed repeatedly with distilled water, and dried in vacuum at 25°C to obtain the end group Azidated Eicosanic Acid Derivatives.

[0039] Step 2: Preparation of eicosanic acid-modified C 60 (eicosanic acid-C 60 ):

[0040] Weigh 250mgC 60 Add to 100ml N,N'-dimethylformamide, ultrasonically disperse for 0.3h. ...

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PUM

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Abstract

The invention belongs to the technical field of materials, and in particular relates to a method for preparing lubricant oil containing high-dispersity fullerene (C60). The method comprises: firstly, acylating and halogenating long-chain fatty acid, utilizing the activity of acyl halide groups to react with metal azides, and obtaining long-chain fatty acid derivatives of which end groups are subjected to azide; secondly, utilizing azide groups to react with C60, connecting the long-chain fatty acid derivatives of which the end groups are subjected to azide to the surface of the C60 in a mode of covalent bonds, and preparing C60 which is modified by the long-chain fatty acid; and thirdly, respectively adding the C60 which is modified by the long-chain fatty acid into lubricant oil according to certain proportion for ultrasonic dispersion. The method utilizes the similarity and intermiscibility of the long-chain fatty acid and lubricant oil molecules to well disperse the C60, gives full play to the self-lubrication function of the C60, and finally obtains the lubricant oil with superior lubrication.

Description

technical field [0001] The invention belongs to the technical field of materials, in particular to a 60 ) preparation method of lubricating oil. Background technique [0002] Fullerene is a new type of spherical molecule discovered in the 1980s. It is the third crystal form of carbon discovered after graphite and diamond. Its molecular formula is Cn, and it is known that n can be up to 540, which is called fullerene. Among the wide variety of fullerenes, due to C 60 The structure is special, and has peculiar physical and chemical properties, C 60 The research on its compounds has become one of the hotspots of scientists from all over the world. [0003] due to C 60 spherical structure, strong compressive capacity, high microhardness, good thermal stability, and due to C 60 The easy slip between molecules is speculated that it may have a "molecular rolling" effect, so it is worth utilizing in micro-tribology. Theoretical model studies also found that at low pressure, C...

Claims

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Application Information

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IPC IPC(8): C10M107/02C10N70/00
Inventor 刘琳程思张学文
Owner TONGJI UNIV
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