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Preparation method of friction-reducing and wear-resisting lubricant

A lubricant and graphene technology, which is applied in lubricating compositions, additives, petroleum industry, etc., can solve the problems of liquid paraffin anti-friction and wear resistance, etc., and achieve the effect of low cost, simple preparation process, and no pollution to the environment

Active Publication Date: 2018-02-02
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The problem to be solved by the present invention is the problem that liquid paraffin reduces friction and wear resistance under higher loads

Method used

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  • Preparation method of friction-reducing and wear-resisting lubricant
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  • Preparation method of friction-reducing and wear-resisting lubricant

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] A preparation method of friction-reducing and wear-resisting lubricant:

[0021] (1) Measure 300mL of N,N-dimethylformamide, add 10mg of polyvinylpyrrolidone k30, then add 1mg of graphene, and ultrasonically shake for 1h. Let stand for 3h.

[0022] (2) Measure 60mL of absolute ethanol, add 1g of stearic acid, stir fully with a magnetic stirrer, and at the same time add 6mL of tetrabutyl titanate and 10mL of diethanolamine, then add 2mL of polyethylene glycol 400, dropwise add concentrated Hydrochloric acid until the solution pH=6. Measure 50mL of graphene solution into the mixed solution, stir for 2h, add 2mL of N, N-dimethylformamide, and continue stirring for 1h, and finally obtain graphene / titanium dioxide sols with different ratios.

[0023] (3) Pour the prepared sol into a crucible, put it into a muffle furnace for firing at a firing temperature of 600° C., keep it warm for 3 hours, take it out and grind it to obtain graphene / titanium dioxide nanopowder.

[0024...

Embodiment 2

[0028] A preparation method of friction-reducing and wear-resisting lubricant:

[0029] (1) Measure 300mL of N,N-dimethylformamide, add 30mg of polyvinylpyrrolidone k30, then add 1mg of graphene, and ultrasonically shake for 3h. Let stand for 5h.

[0030] (2) Measure 100mL of absolute ethanol, add 2g of stearic acid, stir fully with a magnetic stirrer, add 10mL of tetrabutyl titanate and 20mL of diethanolamine at the same time, then add 3mL of polyethylene glycol 400, dropwise add concentrated Hydrochloric acid until the solution pH=6. Measure 70mL of graphene solution into the mixed solution, stir for 2h, add 5mL of N, N-dimethylformamide, and continue stirring for 1h, and finally obtain graphene / titanium dioxide sols with different ratios.

[0031] (3) Pour the prepared sol into a crucible, put it into a muffle furnace to prepare nano-powder, fire at 400° C., keep it warm for 2 hours, take it out and grind it to obtain graphene / titanium dioxide nano-powder.

[0032] (4) A...

Embodiment 3

[0036] A preparation method of friction-reducing and wear-resisting lubricant:

[0037] (1) Measure 300mL of N,N-dimethylformamide, add 300mg of polyvinylpyrrolidone k30, then add 1mg of graphene, and ultrasonically shake for 5h. Stand still for 6h.

[0038] (2) Measure 200mL of absolute ethanol, add 3g of stearic acid, stir fully with a magnetic stirrer, and at the same time add 25mL of tetrabutyl titanate and 50mL of diethanolamine, then add 5mL of polyethylene glycol 400, dropwise add concentrated Hydrochloric acid until the solution pH=6. Measure 90mL of graphene solution into the mixed solution, stir for 2h, add 8mL of N, N-dimethylformamide, and continue stirring for 1h, and finally obtain graphene / titanium dioxide sols with different ratios.

[0039] (3) Pour the prepared sol into a crucible, put it into a muffle furnace for firing at a firing temperature of 500° C., keep it warm for 1 hour, take it out and grind it to obtain graphene / titanium dioxide nanopowder.

[...

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Abstract

The invention discloses a preparation method of friction-reducing and wear-resisting lubricant, which is characterized by including steps of preparing graphite solution; preparing graphite / titanium dioxide sol; sintering the preparing graphite / titanium dioxide sol at high temperature to obtain graphite / titanium dioxide nano powder; adding the graphite / titanium dioxide nano powder in liquid paraffin; and dispersing it evenly; and so on. After adding graphite / titanium dioxide nano powder to the liquid paraffin, the friction-reducing and wear-resisting performance of the liquid paraffin is greatly promoted under the high load condition; the preparation method is simple in technique, low in cost and free from environment pollution.

Description

technical field [0001] The invention relates to a preparation method of a friction-reducing and wear-resisting lubricant, in particular to a method of using graphene and titanium dioxide nanopowder as additives to improve the friction-reducing and wear-resistance properties of liquid paraffin, and belongs to the technical field of composite materials. Background technique [0002] Friction refers to the tangential motion resistance generated on the contact surface when two objects in contact with each other undergo relative motion or have a tendency to relative motion under the action of external force. Friction is ubiquitous in our life and production, where there is friction, there will be wear and tear. According to statistics, the annual energy consumption due to friction and wear accounts for 30% to 50% of the total energy consumption. Therefore, how to reduce the friction and wear on the surface of relative moving objects has become an urgent problem to be solved. Th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10M161/00C10N30/06
CPCC10M161/00C10M2201/041C10M2201/062C10N2030/06
Inventor 白涛赵博
Owner DONGHUA UNIV
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