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Expanded grahpite/molybdenum disulfide composite solid lubricating material and its preparing process

A solid lubricating material, expanded graphite technology, applied in the petroleum industry, lubricating compositions, thickeners, etc., can solve the problem of unsatisfactory service life of molybdenum disulfide, achieve excellent solid lubricating performance, expand application scope, slow down The effect of tribo-oxidation

Inactive Publication Date: 2006-01-04
YANSHAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But its effect of improving the service life of molybdenum disulfide is still unsatisfactory

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0029] Under laboratory conditions, expanded graphite was prepared chemically. Wherein, the raw material used is fine natural flake graphite with a particle size of 200 mesh and a purity of 99.9% (place of origin: Shandong Nanshu Graphite Company), the intercalation agent is concentrated sulfuric acid with a concentration of 98%, and the oxidizing agent is hydrogen peroxide with a concentration of 30%. Intercalation treatment at room temperature of about 25°C for 10 minutes, then the intercalated product was washed with water to a pH value of 8, then dried at 100°C for 2 hours, and subjected to high-temperature puffing treatment at a temperature of 900°C. An expanded graphite with an expansion factor of about 100 times is obtained.

[0030] The purity of the molybdenum disulfide powder used is 98.5%, the particle size is 0.8-5 μm, (place of origin: Tianjin Sifang Chemical Co., Ltd.), and the binder is epoxy resin.

[0031] First, the expanded graphite and molybdenum disulfide...

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PUM

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Abstract

The present invention relates to a lubricating composite making a feature of inorganic material as base material, specially, it relates to a preparation process of expanded graphite / molybdenum disulfide composite solid lubricating material. Said solid lubricating material is formed from solid lubricating component unit expanded graphite and molybdenum disulfide and adhesive component unit, and can be used for providing excelluent lubricant protection layer for friction pair which is worked in atmosphere environment.

Description

technical field [0001] The invention relates to a lubricating composition characterized by an inorganic material base material, in particular to an expanded graphite / molybdenum disulfide composite solid lubricating material and a preparation method thereof. Background technique [0002] Friction and wear are important causes of material damage and equipment scrapping. Solid lubrication technology is one of the effective means to reduce friction and wear. It forms a solid lubricating coating on the surface of the friction pair material through deposition or coating technology, and forms a lubricating transfer film on the mating surface through the friction and wear process to improve the contact condition between the friction pair, thereby effectively reducing friction and resistance. Grinding effect. [0003] Molybdenum disulfide has been widely used in the field of tribology as a solid lubricant with excellent performance. The formation methods of molybdenum disulfide co...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10M113/08
Inventor 张瑞军刘日平
Owner YANSHAN UNIV