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C60 clathrate, and preparation method and application thereof

A technology of inclusion compound and C60, applied in the field of inclusion compound of fullerene-C60 and its preparation, can solve the problems of weak bearing capacity, reduced lubricating performance, unsatisfactory use effect, etc. The effect of dispersion stability

Active Publication Date: 2019-01-11
SUZHOU INST OF INDAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] (1)C 60 It has no solubility in common base oils, so it can only be dispersed in lubricating liquid by mechanical stirring, ultrasonic, solid grinding, etc. The gravitational force makes the nanoparticles accumulate into agglomerates, and the agglomerated particles will reach the micron level, resulting in a decrease in their lubricating performance, making it difficult to realize the ideal "molecular ball" concept
[0005] (2)C 60 There are no active chemical groups or elements on the surface, and it cannot form a chemical adsorption film with the metal to lubricate under severe friction conditions, resulting in a weak bearing capacity under high-speed and heavy-load friction conditions
The basic method of chemical modification of C60 is to introduce active chemical groups such as copolymers, lipids, and carboxylic acids on its surface to increase the solubility, dispersion stability, and lubricity of C60, but the current use effect is not satisfactory.
[0007] At present, there is no report of filling lubricating additives in the cavity of C60

Method used

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  • C60 clathrate, and preparation method and application thereof
  • C60 clathrate, and preparation method and application thereof
  • C60 clathrate, and preparation method and application thereof

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Experimental program
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Effect test

Embodiment 1

[0045] The C of a kind of embedded dihydrocarbyl pentasulfide (RC2540) of embodiment 1 60 The preparation method of clathrate comprises the following steps:

[0046] (1) Using the nitrogen method to convert C 60 Open the cage: first dissolve 15g of 2,3-naphthyridine (phthalazine) in 500ml of toluene, then add 2g of C 60 ; The mixed solution was heated to 80 ℃ under the condition of reflux 8h, utilize thin layer chromatography (TLC) tracking reaction, until the sample point does not change, the whole reaction continues 20h, the opening reaction process of this step is as follows figure 1 .

[0047] (2) On a rotary evaporator, the fully reacted mixed solution in the above (1) was subjected to vacuum distillation, and the heating temperature was 120° C. to obtain a concentrated solution.

[0048] (3) adopt silica gel column chromatography to separate and purify the concentrated solution in the above (2), adopt the mixed solution of toluene and sherwood oil as eluent, wherein ...

Embodiment 2

[0052] A kind of C with embedded sulfurized isobutylene (T321) of embodiment 2 60 The preparation method of clathrate comprises the following steps:

[0053] (1) Using the nitrogen method to convert C 60 Open the cage: first dissolve 15g of 2,3-naphthyridine (phthalazine) in 500ml of toluene, then add 2g of C 60 ; The mixed solution was heated to 80 ℃ under the condition of reflux 8h, utilize thin layer chromatography (TLC) tracking reaction, until the sample point does not change, the whole reaction continues 20h, the opening reaction process of this step is as follows figure 1 .

[0054] (2) On a rotary evaporator, the fully reacted mixed solution in the above (1) was subjected to vacuum distillation, and the heating temperature was 120° C. to obtain a concentrated solution.

[0055] (3) adopt silica gel column chromatography to separate and purify the concentrated solution in the above (2), adopt the mixed solution of toluene and sherwood oil as eluent, wherein the volu...

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Abstract

A C60 clathrate disclosed in the invention is prepared from, by weight, 85-90 parts of C60 and 10-15 parts of a lubricating additive; and the C60 clathrate is a zero-dimensional nano-carbon compositematerial obtained by filling the cavity of cage opening treated C60 with the lubricating additive under high-pressure and high-temperature conditions. The lubricating additive is one of dialkyl pentasulfide, oleic acid, ethylene glycol oleate, sulfurized isobutylene, benzyl disulfide and triethyl phosphate. The C60 clathrate adopts C60 as a host molecule, C60 undergoes ring opening, and an activechemical group can be bonded at the opening in the cage opening process to improve the dispersion stability and the solubility of the C60 in lubricating oil. The C60 clathrate infiltrates into a friction zone with the lubricating oil in the friction process, the clathrate is squeezed and deformed, and the lubricating additive is released from the cracked C60, and forms a lubricating film by physical or chemical adsorption in order to achieve a lubricating effect, so the anti-friction, anti-wear and extreme pressure properties of the C60 are improved.

Description

technical field [0001] The invention relates to the technical field of lubricants, in particular to a fullerene-C filled with lubricating additives 60 The clathrate and its preparation method and application. Background technique [0002] Fullerene-C 60 (C60) is a football molecule with a symmetrical structure composed of 60 carbon atoms, C 60 The molecular diameter is 0.71nm, and its spherical surface is a cage-shaped 32-hedron composed of 12 pentagons and 20 hexagons, in which each carbon atom passes through sp 2.28 Hybridization bonds with surrounding atoms. nano-C 60 The hollow cage-like structure makes it have special physical and chemical properties, coupled with the small size effect, surface effect, quantum size effect, etc. of nanoparticles, making the C 60 The research on the derivatives thereof has always been a research hotspot in the fields of theoretical chemistry, materials and devices, and biomedicine, and is expected to play a role in the fields of engi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10M141/08C10M141/02C10M141/10C10N30/06
CPCC10M141/02C10M141/08C10M141/10C10M2201/041C10M2207/126C10M2207/283C10M2219/022C10M2219/082C10M2219/083C10M2223/04C10N2030/06
Inventor 关集俱
Owner SUZHOU INST OF INDAL TECH
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