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Graphene-modified chromium-free Dacromet coating material

A graphene modification and graphene technology, applied in anti-corrosion coatings, coatings, etc., can solve the problems of low friction resistance and need to improve corrosion resistance, and achieve good wear resistance, improve electrical conductivity, and improve corrosion resistance. The effect of resistance and corrosion resistance

Active Publication Date: 2014-04-23
NINGBO MORSH TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to provide a graphene-modified coating that improves the friction resistance and corrosion resistance of the coating in order to solve the defects that the existing chromium-free dacromet coatings have low friction resistance and corrosion resistance. Chrome-free Dacromet paint

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Filler: sodium silicate, aluminum phosphate and potassium titanate are first mixed with acetone evenly, treated at 25°C for 4 hours, and then dried at 120°C; then zinc powder, aluminum powder, film-forming agent manganese acetate, deionized water , organic solvent ethylene glycol, additive calcium dodecylbenzenesulfonate, graphene and filler are mixed and dispersed evenly, stirred at 25°C for 10 hours, and cooled to obtain a graphene-modified chrome-free dacromet coating. Among them, 15% zinc powder, 2% aluminum powder, 2% film-forming agent, 50.8% deionized water, 10% organic solvent ethylene glycol, 0.1% additive, 20% graphene and 0.1% filler, sodium silicate, The mass ratio of aluminum phosphate to potassium titanate is 1:2:3.5.

[0029]

Embodiment 2

[0031] Fillers: sodium silicate, aluminum phosphate and potassium titanate are mixed with alcohol evenly, treated at 35°C for 4.5h, and then dried at 130°C; then zinc powder, aluminum powder, film-forming agent silane coupling agent, Ionized water, organic solvent glycerin, auxiliary agent styrene ethyl polyoxyethylene ether, graphene and filler are mixed and dispersed evenly, stirred at 25°C for 8 hours, and cooled to obtain a graphene-modified chromium-free dacromet coating. Among them, 20% zinc powder, 10% aluminum powder, 15% graphene, 10% film-forming agent, 25% deionized water, 15% organic solvent glycerol, 3% additive, 2% filler, sodium silicate, The mass ratio of aluminum phosphate to potassium titanate is 1:3:4.

[0032]

Embodiment 3

[0034] Filler: sodium silicate, aluminum phosphate and potassium titanate are first mixed with acetone evenly, treated at 40°C for 5 hours, and then dried at 100°C; then zinc powder, aluminum powder, film-forming agent containing silicone resin and manganese nitrate , deionized water, organic solvents diethylene glycol and polyethylene glycol, additives nonylphenol polyoxyethylene ether, graphene and fillers are mixed and dispersed evenly, stirred at 25°C for 12 hours, and graphene-modified non-alcohol is obtained after cooling. Chrome Dacromet paint. Among them, 10% of zinc powder, 5% of aluminum powder, 10% of graphene, 20% of film-forming agent, 25% of deionized water, 20% of organic solvent diethylene glycol and polyethylene glycol with a volume ratio of 1:1, and auxiliary Agent 5%, filler 5%, the mass ratio of sodium silicate, aluminum phosphate and potassium titanate is 1:4:5.

[0035]

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Abstract

The present invention discloses a graphene-modified chromium-free Dacromet coating material, which comprises, by weight, 10-20% of zinc powder, 2-10% of aluminum powder, 2-20% of a film forming agent, 40-60.8% of a solvent, 0.1-5% of an auxiliary agent, 0.001-20% of graphene, and 0.1-5% of a filler. According to the present invention, compared with the traditional Dacromet coating, the graphene-modified chromium-free Dacromet coating material of the present invention provides substantially-increased hardness and substantially-increased adhesion, wherein the hardness of the coating of the present invention can be 7H so as to make the coating have good wear performance; the energy consumption is reduced, the conductivity of the coating is increased, and the corrosion resistance of the chromium-free Dacromet coating material is further increased; and the used raw materials do not contain substances harmful for environment and human body so as to fundamentally eliminate the pollution source.

Description

technical field [0001] The invention belongs to the technical field of metal anticorrosion, and relates to a chrome-free dacromet paint, in particular to a graphene-modified chrome-free dacromet paint which improves the friction resistance and corrosion resistance of the coating. [0002] Background technique [0003] Corrosion of metals is very common, and the loss to the national economy is very huge. Dacromet technology is a new metal surface anti-corrosion technology developed in recent years. It was invented by the American DIAMOND SHAMROCK company in the late 1960s. The biggest advantage of Dacromet coating is that it has excellent corrosion resistance, and its corrosion resistance can be improved by 7-10 times compared with the traditional galvanized surface treatment process; the coating has no hydrogen embrittlement, especially suitable for high-strength Stressed parts; the coating has high heat resistance and a heat-resistant temperature of 450°C, especially suit...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D5/10C09D7/12
Inventor 唐长林王樑范正清付正伟蔡凤新
Owner NINGBO MORSH TECH
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