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Chrome-free zinc-aluminum coating anticorrosive paint comprising magnesium-manganese

A coating anti-corrosion, zinc-aluminum technology, applied in anti-corrosion coatings, coatings, etc., can solve the problems of reduced corrosion resistance, high price, and increased cost of coatings, and achieve excellent corrosion resistance, low price, and good adhesion. Effect

Active Publication Date: 2013-08-07
TONGXIANG TONGDE ELECTRIC POWER FITTING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] At present, there are industrial applications of chromium-free Dacromet technology at home and abroad, but the corrosion resistance of the coating is significantly lower than that of traditional Dacromet coatings, and it needs to be used with another organic coating, which greatly increases the cost
The cost of chromium-free zinc-aluminum coating is much higher than that of zinc-chromium coating, so its price is high

Method used

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  • Chrome-free zinc-aluminum coating anticorrosive paint comprising magnesium-manganese

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] A chromium-free zinc-aluminum coating anticorrosive coating containing magnesium-manganese, composed of two components A and B in a mass ratio of 3:1, wherein the formula mass percentage of component A is:

[0054] Zinc aluminum alloy powder 32%

[0055] Nano silica 25%

[0056] Sodium Lignosulfonate 15%

[0057] Benzotriazole 4%

[0058] Thiodiethylene glycol 0.35%

[0059] Triphenylphosphine 0.35%

[0060] Deionized water balance

[0061] The formula mass percentage of component B is:

[0062] Zirconium tetrafluoride 25%

[0063] γ-Aminopropyltriethoxysilane 18%

[0064] Phytate 14%

[0065] Cellulose acetate 3.5%

[0066] Ethanol 7%

[0067] Deionized water balance

[0068] Wherein, the zinc aluminum alloy powder is composed of Zn, Al, Mg, and Mn.

[0069] Wherein, the particle size of the nano-silica is 20-50nm.

[0070] The method for preparing the above-mentioned magnesium-manganese-containing chromium-free zinc-aluminum coating anticorrosive paint:

[0071] (1) First, according to the ...

Embodiment 2

[0075] A chromium-free zinc-aluminum coating anticorrosive coating containing magnesium-manganese, composed of two components A and B in a mass ratio of 3:1, wherein: the formula mass percentage of component A is:

[0076] Zinc aluminum alloy powder 25%

[0077] Nano silica 30%

[0078] Sodium Lignosulfonate 12%

[0079] Benzotriazole 5%

[0080] Thiodiethylene glycol 0.2%

[0081] Triphenylphosphine 0.5%

[0082] Deionized water balance

[0083] The formula mass percentage of component B is:

[0084] Zirconium tetrafluoride 20%

[0085] γ-Aminopropyltriethoxysilane 20%

[0086] Phytate 10%

[0087] Cellulose acetate 5%

[0088] Ethanol 5%

[0089] Deionized water balance

[0090] Wherein, the zinc aluminum alloy powder is composed of Zn, Al, Mg, and Mn.

[0091] Wherein, the particle size of the nano-silica is 20-50nm.

[0092] The preparation method is the same as in Example 1.

Embodiment 3

[0094] A chromium-free zinc-aluminum coating anticorrosive coating containing magnesium-manganese, composed of two components A and B in a mass ratio of 3:1, wherein: the formula mass percentage of component A is:

[0095] Zinc aluminum alloy powder 40%

[0096] Nano silica 20%

[0097] Sodium Lignosulfonate 18%

[0098] Benzotriazole 3%

[0099] Thiodiethylene glycol 0.5%

[0100] Triphenylphosphine 0.2%

[0101] Deionized water balance

[0102] The formula mass percentage of component B is:

[0103] Zirconium tetrafluoride 30%

[0104] γ-Aminopropyltriethoxysilane 15%

[0105] Phytate 18%

[0106] Cellulose acetate 2%

[0107] Ethanol 9%

[0108] Deionized water balance

[0109] Wherein, the zinc aluminum alloy powder is composed of Zn, Al, Mg, and Mn.

[0110] Wherein, the particle size of the nano-silica is 20-50nm.

[0111] The preparation method is the same as in Example 1.

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Abstract

The invention discloses a chrome-free zinc-aluminum coating anticorrosive paint comprising magnesium-manganese. The paint is composed of a component A and a component B with a mass ratio of 3:1. The component A comprises the raw materials of zinc-aluminum alloy powder, nano-silica, lignin sodium sulfonate, benzotriazole, thio diethylene glycol, triphenylphosphine, and deionized water. The component B comprises zirconium tetrafluoride, gamma-aminopropyl triethoxysilane, inositol hexaphosphate, butyl cellulose acetate, ethanol, and deionized water. The zinc-aluminum alloy powder is composed of Zn, Al, Mg, and Mn. The product provided by the invention has the advantages of no toxicity, no harm, no pollution, low-temperature fast processing, simple operation, wide raw material source, low cost, clean production, and the like.

Description

Technical field [0001] The invention relates to a metal anticorrosive coating, in particular to a magnesium-manganese-containing chromium-free zinc aluminum coating anticorrosive coating. Background technique [0002] Chromium-free zinc-aluminum coating is a new surface treatment material developed to meet the VOC regulations and environmental protection requirements of the coating industry in various countries around the world, and to replace the traditional Dacromet zinc-chromium coating process. [0003] Dacromet is the transliteration and abbreviation of DACROMET, abbreviated as Dacromet, Dacromet, and Dirkron. Named in China as zinc-chromium coating, it is a new type of anticorrosive coating with zinc powder, aluminum powder, chromic acid and deionized water as the main components. Its anti-corrosion principle is to use the hexavalent chromium ion in the chromium salt to passivate the zinc and aluminum flakes in the coating to improve the anti-corrosion ability of the zinc an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D1/00C09D5/10
Inventor 张军
Owner TONGXIANG TONGDE ELECTRIC POWER FITTING
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