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Preparation method of anti-wear agent

An anti-wear agent and technology of preparation steps, applied in the field of lubricating material preparation, can solve the problems of precipitation, affecting the anti-wear effect of anti-wear agent, easy oxidation of inorganic nanoparticles, etc., to enhance the lubrication and dispersion effect, improve extreme pressure lubrication and The effect of antioxidant properties

Inactive Publication Date: 2019-11-22
刘群艳
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The main technical problem to be solved by the present invention is that most of the anti-wear agents use inorganic nano-additives, but common inorganic nanoparticles are unstable in nature, and adding them to base lubricating oil will easily lead to precipitation, and inorganic Nanoparticles are easily oxidized, which affects the anti-wear effect of the anti-wear agent, and provides a preparation method for the anti-wear agent

Method used

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  • Preparation method of anti-wear agent

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Preparation of carbon nanotube dispersion:

[0032] In parts by weight, add 20 parts of multi-walled carbon nanotubes to 100 parts of ethyl acetate to obtain a mixed solution, place the mixed solution in a high-speed disperser, and disperse at a high speed of 7000r / min for 18 minutes to obtain carbon nanotubes Dispersions.

[0033] Preparation of anti-wear suspension:

[0034] In parts by weight, mix 30 parts of polytetrafluoroethylene powder with 50 parts of carbon nanotube dispersion liquid, place in a stirred tank and stir at a speed of 700r / min for 20min, then reduce the stirring speed to 300r / min, and pour into the stirred tank 20 parts of hexamethylene diisocyanate, 10 parts of acetic acid, 20 parts of nano-aluminum powder and 8 parts of heptadecylfluorodecyltriethoxysilane were added to the mixture, and stirred for 30 minutes to obtain an anti-wear suspension.

[0035] Preparation of active molybdenite powder:

[0036] Take 200g of molybdenite ore and put it i...

Embodiment 2

[0044] Preparation of carbon nanotube dispersion:

[0045] In parts by weight, add 23 parts of multi-walled carbon nanotubes to 110 parts of ethyl acetate to obtain a mixed solution, place the mixed solution in a high-speed disperser, and disperse at a high speed of 7250r / min for 19 minutes to obtain carbon nanotubes Dispersions.

[0046] Preparation of anti-wear suspension:

[0047] In parts by weight, 33 parts of polytetrafluoroethylene powder and 53 parts of carbon nanotube dispersion were mixed, placed in a stirred tank and stirred at a speed of 750r / min for 23min, then the stirring speed was reduced to 350r / min, and poured into the stirred tank 23 parts of hexamethylene diisocyanate, 13 parts of acetic acid, 21 parts of nano-aluminum powder and 9 parts of heptadecafluorodecyltriethoxysilane were added to it, and stirred for 33 minutes to obtain an anti-wear suspension.

[0048] Preparation of active molybdenite powder:

[0049] Take 210g of molybdenite ore and put it i...

Embodiment 3

[0057] Preparation of carbon nanotube dispersion:

[0058] In parts by weight, add 25 parts of multi-walled carbon nanotubes to 120 parts of ethyl acetate to obtain a mixed solution, place the mixed solution in a high-speed disperser, and disperse at a high speed of 7500r / min for 20 minutes to obtain carbon nanotubes Dispersions.

[0059] Preparation of anti-wear suspension:

[0060] In parts by weight, 35 parts of polytetrafluoroethylene powder and 55 parts of carbon nanotube dispersion were mixed, placed in a stirred tank and stirred at a speed of 800r / min for 25min, then the stirring speed was reduced to 400r / min, and poured into the stirred tank 25 parts of hexamethylene diisocyanate, 15 parts of acetic acid, 22 parts of nano-aluminum powder and 10 parts of heptadecafluorodecyltriethoxysilane were added, and stirred for 35 minutes to obtain an anti-wear suspension.

[0061] Preparation of active molybdenite powder:

[0062] Take 220g of molybdenite ore and put it into a...

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Abstract

The invention belongs to the technical field of preparation of lubricating materials, and particularly relates to a preparation method of an anti-wear agent. The preparation method comprises the following steps: preparing anti-wear suspension by taking multi-walled carbon nanotubes as a raw material; mixing and heating microbial oil, ethyl palmitate, lithium amide and the like to obtain an esterification product; finally, distilling an antioxidant lubricating grease crude product to obtain antioxidant lubricating grease; subjecting rapeseed oleic acid, azelaic acid and neopentyl glycol which are used as raw materials to esterification to obtain mixed ester; adding the mixed ester into the anti-wear suspension to obtain the anti-wear agent. Aluminum in the anti-wear suspension in the anti-wear agent participates in a local metallurgical reaction to achieve surface modification so that the anti-friction and anti-wear effects are achieved; an aluminum oxide passivation film can be formedto improve extreme pressure lubricating and antioxidant performance. Through the high polarity of the antioxidant lubricating grease, the conversion rate of the calcite crystal form formed by calciumlignosulphonate is improved, and the high-temperature resistance and the self-repairing performance of a lubricant are improved, such that the prepared anti-wear agent has broad application prospects.

Description

technical field [0001] The invention belongs to the technical field of lubricating material preparation, and in particular relates to a preparation method of an antiwear agent. Background technique [0002] Wear refers to the complex behavior phenomenon that the two relative moving surfaces of the friction pair are continuously lost or deformed during work. According to statistics, about 1 / 3 of the disposable energy in the world is lost by friction, about 60% of mechanical failure parts are caused by wear, and the loss caused by friction and wear in my country is about 10-20% of GDP. Lubricating oil is a liquid or semi-solid lubricant used in various types of automobiles and mechanical equipment to reduce friction and protect machinery and processed parts. It mainly plays the roles of lubrication, auxiliary cooling, rust prevention, cleaning, sealing and buffering. However, due to the movement of the friction surface or changes in environmental factors, such as temperature,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10M167/00C10N30/06
CPCC10M167/00C10M2201/041C10M2201/05C10M2201/066C10M2207/022C10M2207/122C10M2207/283C10M2207/285C10M2213/062C10M2215/14C10M2219/044C10M2227/02
Inventor 刘群艳
Owner 刘群艳
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