Nickel-magnesium-containing chromium-free zinc aluminum coating corrosion-resistant coating
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
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Embodiment 1
[0052] A nickel-magnesium-containing chromium-free zinc-aluminum coating anti-corrosion coating, which is composed of two components A and B in a mass ratio of 3:1, wherein the formula mass percentage of component A is:
[0053] Zinc aluminum alloy powder 32%
[0054] Nano Silica 25%
[0055]Sodium lignosulfonate 15%
[0056] Benzotriazole 4%
[0057] Thiodiethylene glycol 0.35%
[0058] Triphenylphosphine 0.35%
[0059] Deionized water balance
[0060] The formula mass percentage of component B is:
[0061] Zirconium tetrafluoride 25%
[0062] Gamma-Aminopropyltriethoxysilane 18%
[0063] Phytate 14%
[0064] Cellulose Acetate 3.5%
[0065] Ethanol 7%
[0066] Deionized water balance
[0067] Wherein, the zinc-aluminum alloy powder is composed of Zn, Al, Ni and Mg.
[0068] Wherein, the particle size of the nano silicon dioxide is 20-50nm.
[0069] The method for preparing the above-mentioned nickel-magnesium-containing chromium-free zinc-aluminum coating anticor...
Embodiment 2
[0074] A nickel-magnesium-containing chromium-free zinc-aluminum coating anti-corrosion coating, which is composed of two components A and B in a mass ratio of 3:1, wherein the formula mass percentage of component A is:
[0075] Zinc aluminum alloy powder 25%
[0076] Nano silica 30%
[0077] Sodium lignosulfonate 12%
[0078] Benzotriazole 5%
[0079] Thiodiethylene glycol 0.2%
[0080] Triphenylphosphine 0.5%
[0081] Deionized water balance
[0082] The formula mass percentage of component B is:
[0083] Zirconium tetrafluoride 20%
[0084] Gamma-Aminopropyltriethoxysilane 20%
[0085] Phytate 10%
[0086] Cellulose Acetate 5%
[0087] Ethanol 5%
[0088] Deionized water balance
[0089] Wherein, the zinc-aluminum alloy powder is composed of Zn, Al, Ni and Mg.
[0090] Wherein, the particle size of the nano silicon dioxide is 20-50nm.
[0091] The preparation method is the same as in Example 1.
Embodiment 3
[0093] A nickel-magnesium-containing chromium-free zinc-aluminum coating anti-corrosion coating, which is composed of two components A and B in a mass ratio of 3:1, wherein the formula mass percentage of component A is:
[0094] Zinc aluminum alloy powder 40%
[0095] Nano silica 20%
[0096] Sodium lignosulfonate 18%
[0097] Benzotriazole 3%
[0098] Thiodiethylene glycol 0.5%
[0099] Triphenylphosphine 0.2%
[0100] Deionized water balance
[0101] The formula mass percentage of component B is:
[0102] Zirconium tetrafluoride 30%
[0103] Gamma-Aminopropyltriethoxysilane 15%
[0104] Phytate 18%
[0105] Cellulose Acetate 2%
[0106] Ethanol 9%
[0107] Deionized water balance
[0108] Wherein, the zinc-aluminum alloy powder is composed of Zn, Al, Ni and Mg.
[0109] Wherein, the particle size of the nano silicon dioxide is 20-50nm.
[0110] The preparation method is the same as in Example 1.
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