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 dispersio

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0020] Example 1:

[0021] The first step: Preparation of hexadecanoic acid derivative with end group azide:

[0022] Weigh 2.56g (0.01mol) of palmitic acid in a single-necked flask, adjust the reaction temperature of the system to 45℃, slowly add 2.4g thionyl chloride dropwise, magnetically stir and keep for 12h, and distill out excess chlorine under reduced pressure The sulfoxide is converted to hexadecanoyl chloride. 4g hexadecanoyl chloride was dissolved in 25ml acetone, and 3g sodium azide was dissolved in 75ml water. At 5℃, slowly add the acetone solution of hexadecanoyl chloride dropwise to the aqueous solution of sodium azide, and react at 10℃ for 6h. The white solid was filtered out with suction, rinsed with distilled water repeatedly, and dried under vacuum at 25℃ to obtain the terminal stack Nitrided palmitic acid derivative.

[0023] The second step: preparation of palmitic acid modified C 60 (Hexadecanoic acid-C 60 ):

[0024] Weigh 250mgC 60 Add to 100ml N,N'-dimethy...

Example Embodiment

[0028] Example 2:

[0029] The first step: preparation of octadecanoic acid derivative with end group azide:

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

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

[0032] Weigh 250mgC 60 Add to 100ml of N,N'-dimethy...

Example Embodiment

[0036] Example 3:

[0037] The first step: preparation of eicosanoid derivatives with end group azide:

[0038] Weigh 3.12g (0.01mol) of arachidic acid in a single-necked flask, adjust the reaction temperature of the system to 55℃, slowly add 3g of thionyl bromide dropwise, magnetically stir and keep for 12h, and distill out excess bromide under reduced pressure Sulfoxide to obtain eicosanyl bromide. 4g of eicosanyl bromide was dissolved in 30ml of acetone, and 3g of potassium azide was dissolved in 60ml of water. At 5°C, slowly add the acetone solution of eicosanyl bromide to the aqueous solution of potassium azide dropwise, and react at 10°C for 10 hours. The white solid was filtered out with suction, rinsed repeatedly with distilled water, and dried under vacuum at 25°C to obtain the end groups Azidated arachidic acid derivative.

[0039] Step 2: Preparation of Eicosanic Acid Modified C 60 (Eicosan-C 60 ):

[0040] Weigh 250mgC 60 Add to 100ml N,N'-dimethylformamide, and ultras...

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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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