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Carbon fiber reinforced polymer-based self-lubricating material and preparation method thereof

A lubricating material and polymer technology, which is applied in the field of carbon fiber reinforced polymer-based self-lubricating materials and its preparation, can solve the problems of low friction reduction and wear resistance, short service life, poor lubrication performance, etc., and achieve improved friction reduction and wear resistance ability, low wear rate, and low coefficient of friction

Inactive Publication Date: 2011-08-31
LANZHOU INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The main problems of the current domestic polymer self-lubricating materials are low friction and wear resistance, short service life and insufficient strength
Domestic existing related patents include: 03141663.2 Aramid fiber / polyimide composite material and its preparation method, 200410053664.0 Preparation method of rare earth modified carbon fiber / polyimide composite material, 200410032159.8 A short fiber reinforced polyimide composite material and preparation method and use, 200510112204.5 preparation method of rare earth modified glass fiber / polyimide composite material, these materials have poor self-lubricating properties

Method used

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  • Carbon fiber reinforced polymer-based self-lubricating material and preparation method thereof
  • Carbon fiber reinforced polymer-based self-lubricating material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] The preparation process is as follows:

[0025] (1) Select polyimide as the resin matrix, mass fraction: 30%;

[0026] (2) Use chopped carbon fiber as reinforcement, mass fraction: 10%;

[0027] (3) Molybdenum disulfide and antimony trioxide are selected as lubricating additives, and the mass fractions are: 40% and 20% respectively.

[0028] (4) First mix polyimide, molybdenum disulfide and antimony trioxide uniformly, then add chopped carbon fiber, and fully mix uniformly;

[0029] (5) Pour the mixed molding materials into the mold and hot press molding, the molding temperature is 360°C, the pressure is 35MPa, heat preservation and pressure holding for 40 minutes, and natural cooling.

Embodiment 2

[0031] The preparation process is as follows:

[0032] (1) Select polyimide as the resin matrix, mass fraction: 40%;

[0033] (2) Use chopped carbon fiber as reinforcement, mass fraction: 20%;

[0034] (3) Molybdenum disulfide and antimony trioxide are selected as lubricating additives, and the mass fractions are respectively: 30%, 10%;

[0035] (4) First mix polyimide, molybdenum disulfide and antimony trioxide uniformly, then add chopped carbon fiber, and fully mix uniformly;

[0036] (5) Pour the mixed molding material into the mold and hot press molding, the molding temperature is 380°C, the pressure is 38MPa, heat preservation and pressure holding for 50 minutes, and natural cooling.

Embodiment 3

[0038] The preparation process is as follows:

[0039] (1) Select polyimide as the resin matrix, mass fraction: 50%;

[0040] (2) Use chopped carbon fiber as reinforcement, mass fraction: 10%;

[0041] (3) Molybdenum disulfide and antimony trioxide are selected as lubricating additives, and the mass fractions are respectively: 30%, 10%;

[0042] (4) First mix polyimide, molybdenum disulfide and antimony trioxide uniformly, then add chopped carbon fiber, and fully mix uniformly;

[0043] (5) Pour the mixed mold material into the mold for hot press molding, the molding temperature is 370°C, the pressure is 40MPa, heat preservation and pressure holding for 40 minutes, and natural cooling;

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Abstract

The invention relates to a carbon fiber reinforced polymer-based self-lubricating material and a preparation method thereof. The composition and mass fraction of the material are: polyimide of 30-50 percent, chopped carbon fiber of 10-20 percent, molybdenum disulfide of 10-40 percent and antimony trioxide of 10-30 percent. The invention has the advantages of high mechanical strength, low frictioncoefficient, low wear rate and the like, and can be processed to be used as a sliding vane, a bearing and the like. Moreover, the invention improves the friction reducing capability and the wear resistance of the material, and prolongs the service life of the material.

Description

technical field [0001] The invention relates to a carbon fiber reinforced polymer-based self-lubricating material and a preparation method thereof. Background technique [0002] Polyimide is a kind of polymer material with high heat resistance developed in the 1950s. It is resistant to high temperature and radiation, and has excellent mechanical properties and tribological properties. It is known as the "King of Plastics" especially It has excellent anti-friction lubrication characteristics in harsh environments such as high temperature, high pressure and high speed, and has been widely used in high-tech fields such as aviation, aerospace, electrical appliances, machinery, chemicals and microelectronics. The self-lubricating properties of pure polyimide are relatively poor, and it is difficult to meet the requirements under certain harsh conditions. Filling and modifying PI can further improve its tribological properties. Fiber-reinforced polyimide (PI) resin-based composite...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L79/08C08K7/06C08K3/30C08K3/22C08J5/04B29C43/58
Inventor 王齐华张新瑞王廷梅裴先强
Owner LANZHOU INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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