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Environment-friendly solid lubricating coating and preparation and using method thereof

A solid lubricating coating, an environmentally friendly technology, applied in coatings and other directions, to achieve the effect of huge application potential, simple preparation process, and low coefficient of friction

Pending Publication Date: 2022-01-21
江苏高润新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the deficiencies of the prior art, the present invention aims to provide a preparation method of an environment-friendly solid lubricating coating to solve the problem of the binder in the curing process

Method used

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  • Environment-friendly solid lubricating coating and preparation and using method thereof
  • Environment-friendly solid lubricating coating and preparation and using method thereof
  • Environment-friendly solid lubricating coating and preparation and using method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] (1) Weigh 0.6g of graphite, 0.4g of molybdenum disulfide and 0.68g of dispersant, pour the weighed sample into a ball mill jar, add 1g of deionized water, put in ceramic balls, and ball mill for 50 hours in total;

[0020] (2) Weigh 3g of water-based polyamide-imide and fully mix with the ground solid components, and fully stir to prepare a uniform and stable dispersed coating.

[0021] (3) Apply the paint evenly on the surface of the sample after degreasing and ultrasonic cleaning. The coated samples were left to dry at room temperature, and then cured at 280°C for 1 hour.

[0022] figure 1 Scanning electron micrograph of the solid lubricating coating prepared in Example 1 of the method of the present invention.

Embodiment 2

[0024] (1) Weigh 0.6g of graphite, 0.4g of molybdenum disulfide and 0.68g of dispersant, pour the weighed sample into a ball mill jar, add 1g of deionized water, put in ceramic balls, and ball mill for 50 hours in total;

[0025] (2) Weigh 3g of water-based polyamide-imide and fully mix with the ground solid components, and fully stir to prepare a uniform and stable dispersed coating.

[0026] (3) Apply the paint evenly on the surface of the sample after degreasing and ultrasonic cleaning. The coated sample was left to dry at room temperature, and then cured at 230°C for 1 hour.

Embodiment 3

[0028] (1) Weigh 0.6g of graphite, 0.4g of molybdenum disulfide and 0.8g of dispersant, pour the weighed sample into a ball mill jar, add 1g of deionized water, put in ceramic balls, and ball mill for 50 hours in total;

[0029] (2) Weigh 3g of water-based polyamide-imide and fully mix with the ground solid components, and fully stir to prepare a uniform and stable dispersed coating.

[0030] (3) Apply the paint evenly on the surface of the sample after degreasing and ultrasonic cleaning. The coated samples were left to dry at room temperature, and then cured at 280°C for 1 hour.

[0031] The model of the friction testing machine selected for the analysis of the tribological properties of the coating is MS-T3001. The friction ball made of GCr15 bearing steel is selected for the experiment, the hardness is 62HRC, the diameter of the steel ball is 6mm, the material of the steel sheet is 45# steel, and the radius of rotation is 5mm. Single sample test speed, load and time are 2...

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Abstract

The invention discloses an environment-friendly solid lubricating coating and a preparation and using method thereof. The prepared solid lubricating coating is relatively low in friction coefficient and relatively long in friction life. The environment-friendly solid self-lubricating coating disclosed by the invention has the characteristics of excellent antifriction and antiwear properties, toughness, adhesive force, long service life and the like. The specific method comprises the following steps: (1) weighing molybdenum disulfide, graphite and a dispersing agent in proportion, pouring the weighed sample into a ball milling tank, adding a proper amount of deionized water, putting ceramic balls accounting for about 1 / 3 of the volume of the ball milling tank, and carrying out ball milling for several hours; (2) weighing a proper amount of water-based polyamideimide, fully mixing the water-based polyamideimide with the ground solid component, and fully stirring to prepare a uniformly and stably dispersed coating; and (3) uniformly smearing the coating on the surface of a sample subjected to oil removal, ultrasonic cleaning and the like; and placing the coated sample at room temperature for surface drying, and then curing to obtain the solid lubricating coating. The prepared solid lubricating coating with low friction, long service life and high bearing capacity can be used for machining lubrication. The method has the characteristics of simple preparation process, easily available raw materials, low cost, good lubricating property, greenness and the like.

Description

technical field [0001] The invention belongs to the field of composite coatings, and relates to a high-performance environment-friendly solid self-lubricating coating and a method for preparing and using it. Background technique [0002] With the rapid development of aviation and aerospace technology, many tribological problems follow. Bonded solid lubricating coating is one of the main types of solid lubricating materials, which has a low friction coefficient and a wide temperature range. As a simple and efficient lubrication technology, solid lubricating coating can form a film on the surface of friction parts to reduce friction and wear and provide effective protection. It can provide an effective solution to lubrication problems under extreme conditions. At present, most of the binders used in bonding solid lubricating coatings are organic solvent-based, and the coating components contain a large amount of organic solvents. Organic solvents are volatile, toxic, flammab...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D179/08C09D7/61C09D7/65
CPCC09D179/08C09D7/61C09D7/65C08K2003/3009C08L33/00C08K3/04C08K3/30
Inventor 高原刘俊钱研
Owner 江苏高润新材料有限公司
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