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A graphene-modified chrome-free dacromet paint

A graphene modification, graphene technology, applied in anti-corrosion coatings, coatings and other directions, can solve the problems of improving corrosion resistance, low friction resistance, etc., to improve electrical conductivity, good wear resistance, and eliminate pollution. effect of source

Active Publication Date: 2016-02-03
NINGBO MORSH TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] 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

[0024] The fillers: sodium silicate, aluminum phosphate and potassium titanate are mixed with acetone first, treated at 25°C for 4h, and then dried at 120°C; then zinc powder, aluminum powder, film-forming agent manganese acetate, deionized water , Organic solvent ethylene glycol, calcium dodecylbenzene sulfonate, graphene and filler are mixed and dispersed uniformly, stirred at 25°C for 10 hours, and cooled to obtain a graphene-modified chromium-free dacromet coating. Among them, zinc powder 15%, aluminum powder 2%, film forming agent 2%, deionized water 50.8%, organic solvent ethylene glycol 10%, additives 0.1%, graphene 20% and filler 0.1%, sodium silicate, The mass ratio of aluminum phosphate to potassium titanate is 1:2:3.5.

Embodiment 2

[0026] Mix the fillers: sodium silicate, aluminum phosphate and potassium titanate with alcohol first, treat them at 35°C for 4.5h, and then dry them at 130°C; then remove zinc powder, aluminum powder, film-forming agent, silane coupling agent, and Ionized water, organic solvent glycerol, additives, phenethyl polyoxyethylene ether, graphene and filler are mixed and dispersed uniformly, stirred at 25°C for 8 hours, and cooled to obtain a graphene-modified chromium-free dacromet coating. Among them, zinc powder 20%, aluminum powder 10%, graphene 15%, film-forming agent 10%, deionized water 25%, organic solvent glycerol 15%, additives 3%, filler 2%, sodium silicate, The mass ratio of aluminum phosphate to potassium titanate is 1:3:4.

Embodiment 3

[0028] Filler: Sodium silicate, aluminum phosphate and potassium titanate are mixed uniformly with acetone, treated at 40℃ for 5h, and then dried at 100℃; then zinc powder, aluminum powder, film forming agent containing silicon resin and manganese nitrate , Deionized water, organic solvents diethylene glycol and polyethylene glycol, additives nonylphenol polyoxyethylene ether, graphene and fillers are mixed and dispersed uniformly, stirred at 25°C for 12 hours, and cooled to obtain graphene modified Chrome Dacromet paint. Among them, zinc powder 10%, aluminum powder 5%, graphene 10%, film-forming agent 20%, deionized water 25%, volume ratio of 1:1 organic solvents diethylene glycol and polyethylene glycol 20%, auxiliary The mass ratio of sodium silicate, aluminum phosphate and potassium titanate is 1:4:5.

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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 chromium-free dacromet coating, in particular to a graphene-modified chromium-free dacromet coating that improves the friction resistance and corrosion resistance of the coating. Background technique [0002] Corrosion of metals is very common, causing huge losses to the national economy. Dacromet technology is a new metal surface anticorrosion technology developed in recent years. It was invented by the American DIAMONDSHAMROCK company in the late 1960s. The biggest advantage of Dacromet coating is that it has excellent corrosion resistance, and its corrosion resistance can be increased by 7-10 times compared with the traditional galvanized surface treatment process; the coating has no hydrogen embrittlement, especially suitable for high strength Force parts: The coating has high thermal resistance and heat-resistant temperature up to 450°C, which is especially suitable ...

Claims

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Application Information

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Patent Type & Authority Patents(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