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Environment-friendly water-based graphite-based solid film lubricant and preparation method thereof

A graphite-based, lubricant-based technology, applied in coatings and other directions, can solve the problems of slow development of water-based adhesives and insufficient bonding strength, and achieve the effects of good adhesion, low friction coefficient, and small wear rate

Pending Publication Date: 2019-07-19
LANZHOU INST OF CHEM PHYSICS CHINESE ACAD OF SCI +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The reason is mainly attributed to the relatively slow development of water-based adhesives. For example, water-based epoxy resin and water-based acrylic resin are used as water-based organic resins, and their bonding strength is insufficient. There is still a big gap between the service life and the wear life of organic solvent-based bonded solid lubricants

Method used

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  • Environment-friendly water-based graphite-based solid film lubricant and preparation method thereof
  • Environment-friendly water-based graphite-based solid film lubricant and preparation method thereof
  • Environment-friendly water-based graphite-based solid film lubricant and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Components: 78.5 g of water-based polyamide-imide resin, 90.0 g of graphite, 5.0 g of lanthanum trifluoride, 0.5 g of wetting and dispersing agent, 654.5 g of deionized water;

[0025] Preparation: Disperse graphite powder in deionized water with wetting and dispersing agent, put it into a ball mill jar and mill for more than 50 hours to obtain graphite slurry; disperse rare earth fluoride in deionized water with wetting and dispersing agent, Grind twice with a conical mill to obtain rare earth fluoride slurry; fully mix the water-based polyamide-imide resin with the ground graphite slurry and rare earth fluoride slurry, and add the rest of deionized water.

Embodiment 2

[0027] Components: 56.0 g of graphite, 4.0 g of cerium trifluoride, 0.5 g of wetting and dispersing agent, 71.5 g of water-based polyamideimide resin, and 712.5 g of deionized water;

[0028] The preparation process is the same as in Example 1. The performance index of water-based bonded solid film lubricant is shown in Table 1.

Embodiment 3

[0030] Components: graphite 75.0 g, cerium trifluoride 9.0 g, wetting and dispersing agent 0.3 g, water-based polyamideimide resin 67.8 g, deionized water 699.7 g;

[0031] The preparation process is the same as in Example 1. The performance index of water-based bonded solid film lubricant is shown in Table 1.

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Abstract

The invention discloses an environment-friendly water-based graphite-based solid film lubricant, which is prepared by taking water-based polyamide-imide resin as a binder, graphite as a lubricant, a rare earth fluoride as a filler, modified acrylic resin as a wetting dispersant and deionized water as a dispersion medium. A prepared coating has the characteristics of good adhesion to a metal substrate, good flexibility, good impact resistance and the like, has a lower friction coefficient and a lower wear rate, and can effectively reduce the frictional wear between moving parts and prolong theservice lives of the parts.

Description

technical field [0001] The invention relates to a solid film lubricant, in particular to an environment-friendly water-based graphite-based solid film lubricant and a preparation method thereof. Background technique [0002] Bonded solid film lubricant (also known as dry film lubricant) is one of the main types of solid lubricating materials. It has a low friction coefficient, long service life, wide applicable temperature range, and its operation is simple. It is used in civil industry It has been widely used in the field of space technology. Most of the binders currently used in bonded solid film lubricants are organic solvent-based, and contain a large amount of organic solvents in the coating components. A large amount of volatile organic solvents are toxic and flammable, and cause serious harm to the environment and human body. With the enhancement of people's awareness of environmental protection, the restrictions on the content of volatile organic compounds (VOC) em...

Claims

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Application Information

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IPC IPC(8): C09D179/08C09D7/62
CPCC09D7/62C09D179/08C08K9/08C08K3/04C08K3/16
Inventor 冶银平李斌万宏启陈磊马彦军周惠娣陈建敏
Owner LANZHOU INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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