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Environment-friendly metal part zinc-aluminum coating paint and preparation method thereof

A kind of metal parts, environment-friendly technology, applied in the direction of coating, anti-corrosion coating, etc., can solve the problems that affect the quality and appearance of coated products, low viscosity and other problems, achieve strong binding force, low curing temperature of coating, excellent impact resistance Effect

Inactive Publication Date: 2021-01-26
南通神州金属涂覆有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, at present, the viscosity of zinc-aluminum coatings is too low for the coating process, which will directly affect the quality and appearance of the coated products.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] An environment-friendly zinc-aluminum coating for metal parts, which is composed of A and B double agents in a mass ratio of 5:1, wherein: the mass percentage of A agent is:

[0029] The raw material mass percent of described A agent is:

[0030] Nanoscale flaky zinc powder: 40%;

[0031] Leafy flake aluminum powder: 13%;

[0032] Emulsifier: 1.5%;

[0033] Dispersant: 7%;

[0034] Thickener: 0.25%;

[0035] Deionized water: balance.

[0036] The raw material mass percentage of described B component is:

[0037] Thiodiethylene glycol: 1%;

[0038] Ethanol: 3%;

[0039] Acetate cellulose: 4%;

[0040] Deionized water: balance.

[0041] Wherein, the emulsifier is selected from fatty alcohol polyoxyethylene ether, fatty acid polyoxyethylene ester.

[0042] The dispersant is selected from organosilane coupling agent KH550, diethyl diallyl ammonium chloride.

[0043] The thickener is selected from hydroxymethyl cellulose and hydroxyethyl cellulose.

[0044] Where...

Embodiment 2

[0051] An environment-friendly zinc-aluminum coating for metal parts, which is composed of A and B double agents in a mass ratio of 5:1, wherein: the mass percentage of A agent is:

[0052] The raw material mass percent of described A agent is:

[0053] Nanoscale flaky zinc powder: 30%;

[0054] Leafy flake aluminum powder: 10%;

[0055] Emulsifier: 0.5%;

[0056] Dispersant: 5%;

[0057] Thickener: 0.05%;

[0058] Deionized water: balance.

[0059] The raw material mass percentage of described B component is:

[0060] Thiodiethylene glycol: 0.1%;

[0061] Ethanol: 1%;

[0062] Acetate cellulose: 2%;

[0063] Deionized water: balance.

[0064] Wherein, the emulsifier is selected from polyoxyethylene polyoxypropylene block polyether.

[0065] The dispersant is selected from diethyl diallyl ammonium chloride.

[0066] The thickener is selected from hydroxyethyl cellulose and hydroxypropyl cellulose.

[0067] Wherein, the thickness of the nanoscale flaky zinc powder i...

Embodiment 3

[0071] An environment-friendly zinc-aluminum coating for metal parts, which is composed of A and B double agents in a mass ratio of 5:1, wherein: the mass percentage of A agent is:

[0072] The raw material mass percent of described A agent is:

[0073] Nanoscale flaky zinc powder: 50%;

[0074] Leafy flake aluminum powder: 15%;

[0075] Emulsifier: 2%;

[0076] Dispersant: 10%;

[0077] Thickener: 0.5%;

[0078] Deionized water: balance.

[0079] The raw material mass percentage of described B component is:

[0080] Thiodiethylene glycol: 2%;

[0081] Ethanol: 5%;

[0082] Acetate cellulose: 6%;

[0083] Deionized water: balance.

[0084] Wherein, the emulsifier is selected from polyoxyethylene fatty acid esters.

[0085] The dispersant is selected from organosilane coupling agent KH550.

[0086] The thickener is selected from hydroxymethyl cellulose, hydroxyethyl cellulose, hydroxypropyl cellulose.

[0087] Wherein, the thickness of the nanoscale flaky zinc powde...

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Abstract

The invention provides an environment-friendly metal part zinc-aluminum coating paint which is composed of an agent A and an agent B according to a mass ratio of 5:1. The agent A is prepared from thefollowing raw materials in parts by mass: nanoscale flaky zinc powder, floating flaky aluminum powder, an emulsifying agent, a dispersing agent, a thickening agent and deionized water. The component Bis prepared from the following raw materials in parts by mass: 2,2'-thiodiethanol, ethanol, cellulose acetate butyrate and deionized water. The preparation method comprises the following steps: weighing quantitative nanoscale flaky zinc powder, floating flaky aluminum powder, an emulsifying agent, a dispersing agent, a thickening agent and deionized water according to the formula in the agent A,and conducting stirring and standing; weighing a certain amount of 2,2'-thiodiethanol, ethanol, cellulose acetate butyrate and deionized water according to the formula in the agent B, and conducting stirring and standing; and mixing the agent A and the agent B in a mass ratio of 5:1 after standing to obtain the paint. The paint does not contain toxic organic solvents such as benzene and xylene, and has the advantages of low coating curing temperature, excellent corrosion resistance, excellent impact resistance and high binding force with a matrix.

Description

technical field [0001] The invention relates to the technical field of metal surface treatment, in particular to an environment-friendly zinc-aluminum coating for metal parts and a preparation method thereof. Background technique [0002] Zinc-aluminum coatings have the characteristics of corrosion resistance and no hydrogen embrittlement, and are widely used in automobiles, home appliances, ships and other fields. At present, there have been breakthroughs in zinc-aluminum coatings for metal parts, and the developed coatings have better corrosion resistance. However, at present, the viscosity of zinc-aluminum coatings is too low for the coating process, which ultimately directly affects the quality and appearance of the coated products. Contents of the invention [0003] In order to solve the above-mentioned defects, the object of the present invention is to provide a kind of environment-friendly zinc-aluminum coating coating for metal parts, which is composed of A and B ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D1/00C09D5/10C09D7/65C09D7/20C09D7/44C09D7/43C09D7/63
CPCC09D1/00C09D5/103C09D5/106C09D7/20C09D7/43C09D7/44C09D7/63C09D7/65
Inventor 秦哲秋
Owner 南通神州金属涂覆有限公司