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A kind of high-performance skateboard brick coating containing expanded graphite and preparation method thereof

A technology of expanded graphite and skateboard bricks, which is applied in the direction of coating, etc., can solve the problems affecting the use effect and service life of skateboard bricks, poor adhesion between paint and skateboard bricks, and low bonding strength, so as to achieve good adhesion and spreadability, and improve Good adhesion, bonding strength and stability

Active Publication Date: 2021-11-26
HENAN RONGJIN HIGH TEMPERATRUE MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, at present, during the use of domestic skateboard coatings, there are often problems such as paint storage precipitation, secondary stirring is required during use, poor adhesion between paint and skateboard bricks, low bonding strength, easy oxidation when used at high temperatures, and easy peeling off of paint during use. Directly affect the use effect and service life of skateboard tiles

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] A kind of high-performance skateboard brick coating containing expanded graphite, by weight percentage, raw material composition is: 15% expanded graphite, 0.8% organic bentonite, 2% dispersant, 2% boron carbide, 1.2% Arabica Rubber powder, 79% deionized water, plus 1% sodium carboxymethylcellulose and 0.8% defoamer of the total amount of the above raw materials.

[0027] The particle size of expanded graphite is 600 mesh, the expansion volume is 10-20mL / g, and the mass fraction of carbon content is ≥90%; the particle size of organic bentonite is 200 mesh, and the particle size of boron carbide is 325 mesh; the dispersant is dispersant NNO, Arab The gum powder is food-grade gum arabic powder, and the defoamer is tributyl phosphate; the viscosity of the sodium carboxymethylcellulose used in 25°C and 2% aqueous solution is 1200-1300mPa·s; deionized water The temperature of the water is between 50°C and 70°C.

[0028] The preparation method of this skateboard brick coatin...

Embodiment 2

[0034] A high-performance skateboard brick coating containing expanded graphite. The raw materials are composed of 21% expanded graphite, 0.5% organic bentonite, 1% dispersant, 1% boron carbide, and 0.5% gum arabic by weight percentage. Powder, 76% deionized water, plus 0.5% sodium carboxymethyl cellulose and 1.5% defoamer of the total amount of the above raw materials.

[0035] The particle size of expanded graphite is 600 mesh, the expansion volume is 10-20mL / g, and the mass fraction of carbon content is ≥90%; the particle size of organic bentonite is 200 mesh, and the particle size of boron carbide is 325 mesh; the dispersant is dispersant NNO; The sodium carboxymethyl cellulose used has a viscosity of 1200-1300 mPa·s in a 2% aqueous solution at 25°C; the water temperature of the deionized water is 50°C-70°C.

[0036] The preparation method of the skateboard brick coating is the same as that in Example 1, and the physical properties of the skateboard brick coating of the pr...

Embodiment 3

[0038]A high-performance skateboard brick coating containing expanded graphite. The raw materials are composed of 16% expanded graphite, 0.7% organic bentonite, 1.3% dispersant, 1.3% boron carbide, and 0.7% gum arabic. Powder, 80% deionized water, plus 0.7% sodium carboxymethylcellulose and 1% defoamer of the total amount of the above raw materials.

[0039] The particle size of expanded graphite is 600 mesh, the expansion volume is 10-20mL / g, and the mass fraction of carbon content is ≥90%; the particle size of organic bentonite is 200 mesh, and the particle size of boron carbide is 325 mesh; the dispersant is dispersant NNO. The foaming agent is tributyl phosphate; the viscosity of the sodium carboxymethyl cellulose used in 25°C and 2% aqueous solution is 1200-1300mPa·s; the water temperature of the deionized water is 50°C-70°C.

[0040] The preparation method of the skateboard brick coating is the same as that in Example 1, and the physical properties of the skateboard bric...

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Abstract

The invention relates to a high-performance sliding brick coating containing expanded graphite and a preparation method thereof. The raw material composition of the sliding brick coating is: 15-21% of expanded graphite, 0.5-1.5% of organic bentonite, and 1-3% of dispersed Agent, 1-3% boron carbide, 0.5-1.5% gum arabic powder, 71-80% deionized water, plus 0.5-1% sodium carboxymethyl cellulose, 0.8-1.5% defoamer. The skateboard brick coating has the characteristics of good stability, strong adhesion, high bonding strength with the skateboard brick, and good smoothness of the working surface after coating. The specific gravity of the paint is 1.00-1.50, the viscosity is 800-1500mPa·s, the adhesion is grade 1-3, the pH value is 7-8, and the suspension stability period (no delamination) is ≥30 days.

Description

technical field [0001] The invention relates to a high-performance sliding brick coating containing expanded graphite and a preparation method thereof, belonging to the field of inorganic non-metallic materials. Background technique [0002] The sliding nozzle is an important functional refractory material for steelmaking and continuous casting. The sliding nozzle brick is a key component of the sliding nozzle system, and its performance directly determines the effect of its steel flow control. During the continuous casting process of the sliding brick, the control of the flow rate of molten steel and the switch is realized by the relative sliding of the upper and lower sliding bricks. The friction between the sliding surfaces of the sliding bricks is an important factor affecting its use. The frequent sliding of the sliding plate will cause roughening and wear on the surface of the sliding plate, which will increase the frictional resistance between the upper and lower slid...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D1/00C09D7/61C09D7/65C09D7/20C09D7/63
CPCC09D1/00C09D7/20C09D7/61C09D7/63C09D7/65
Inventor 来丽苹徐跃庆赵臣瑞牛智旺李宏宇梁保青关斌斌韩彦锋李雪翠
Owner HENAN RONGJIN HIGH TEMPERATRUE MATERIALS CO LTD
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