A kind of aqueous chrome-free dacromet coating solution and preparation method thereof

A water-based, thickening agent technology, used in coatings, anti-corrosion coatings, etc., can solve the problems of inability to obtain widespread recognition, strong toxicity, and less use, to eliminate the source of pollution, and the coating has good wear resistance and reduced The effect of production costs

Active Publication Date: 2011-12-14
朱承飞
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Cr 6+ It is highly toxic and has a carcinogenic effect on the human body, and it also has a great poisonous effect on crops and microorganisms; at the same time, although most of the Cr in Dacromet paint 6+ Participate in the reaction and transform into Cr during the baking film formation process 3+ , but there is still a small amount of chromium in the form of soluble Cr 6+ The form of Dacromet is retained in the Dacromet coating, which will cause harm to the human body and the environme

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] A component: zinc powder 70g, aluminum powder 10g, OP-1060ml, ethylene glycol 60ml, distilled water 40ml, phytic acid 6ml, sodium molybdate 7g; B component: manganese acetate 32g, boric acid 1g, succinic acid 1g, distilled water 60ml composition; C component: KH-57041ml; D component: hydroxymethylcellulose 0.3g, distilled water 10ml.

[0033] Preparation:

[0034] 1. After uniformly mixing 70g of zinc powder, 10g of aluminum powder, OP-1060ml, and 60ml of ethylene glycol, add 20ml of distilled water to react for 5-10mim;

[0035] 2. Then, mix 20ml of distilled water, 6ml of phytic acid, and 7g of sodium molybdate evenly, and add the zinc-aluminum powder mixture system prepared in step 1 to react for 1-2 hours to obtain component A;

[0036] 3. Mix 32g of manganese acetate, 1g of boric acid, 1g of succinic acid, and 60ml of distilled water to prepare component B;

[0037] 4. Add component C to component B and react for 1-2 hours;

[0038] 5. Mix 0.3g of hydroxymethylc...

Embodiment 2

[0041] A component: zinc powder 80g, aluminum powder 13g, polyethylene glycol 70ml, ethanol 70ml, distilled water 40ml, phytic acid 7ml, sodium molybdate 8g; B component: manganese acetate 34g, boric acid 2g, succinic acid 2g, distilled water 70ml; C component: KH-550 50ml; D component: 0.3g hydroxyethyl cellulose, 10ml distilled water.

[0042] Preparation:

[0043] 1. After uniformly mixing 80g of zinc powder, 13g of aluminum powder, 70ml of polyethylene glycol, and 70ml of ethanol, add 20ml of distilled water to react for 5-10mim;

[0044] 2. Then mix 20ml of distilled water, 7ml of phytic acid, and 8g of sodium molybdate evenly, and add the zinc-aluminum powder mixture system prepared in step 1 to react for 1-2 hours to obtain component A;

[0045] 3. Mix 34g of manganese acetate, 2g of boric acid, 2g of succinic acid, and 70ml of distilled water to prepare component B;

[0046] 4. Add component C to component B and react for 1-2 hours;

[0047] 5. Mix 0.3g of hydroxyet...

Embodiment 3

[0050]A component: zinc powder 30g, aluminum powder 5g, glycerin 30ml, OP-1030ml, distilled water 20ml, phytic acid 2.5ml, sodium molybdate 3g; B component: manganese nitrate 21g, boric acid 1g, succinic acid 1g, Distilled water 30ml; C component: 220ml DL60; D component: hydroxyethyl cellulose 0.3g, distilled water 10ml.

[0051] Preparation:

[0052] 1. After mixing 30g of zinc powder, 5g of aluminum powder, OP-1030ml, and 30ml of glycerin, add 10ml of distilled water to react for 5-10mim;

[0053] 2. Then, mix 10ml of distilled water, 2.5ml of phytic acid, and 3g of sodium molybdate evenly, and add the zinc-aluminum powder mixture system prepared in step 1 to react for 1-2 hours to obtain component A;

[0054] 3. Mix 21g of manganese nitrate, 1g of boric acid, 1g of succinic acid, and 30ml of distilled water to prepare component B;

[0055] 4. Add component C to component B and react for 1-2 hours;

[0056] 5. Mix 0.3g of hydroxyethyl cellulose and 10ml of distilled wate...

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PUM

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Abstract

The invention discloses water-based chrome-free Dacromet coating solution. The coating solution is environment-friendly, is free of environmental pollution and simultaneously has good corrosion and weather resistance. The coating solution comprises components A, components B, a component C and components D, wherein the components A include 18-24% of zinc powder, 2-5% of aluminium powder, 28-34% of wetting and dispersing agent, 1-3% of passivator, 1-3% of corrosion inhibitor and water by mass; the components B include 5-12% of film-forming agent, 0.1-0.5% of forming auxiliaries and water by mass; the component C is 5-12% of film-forming auxiliary by mass; the components D include the balance of thickener and water; and the total mass percent of water is 18-27%.

Description

technical field [0001] The invention relates to a dacromet coating liquid and a preparation method thereof, in particular to a water-based chrome-free dacromet coating liquid and a preparation method thereof. Background technique [0002] 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 resistance temperature of 300°C, especially suitable for high-strength components of automobile and motorcycle engine parts; at t...

Claims

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Application Information

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IPC IPC(8): C09D1/00C09D5/10
Inventor 朱承飞毛炳翔
Owner 朱承飞
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