Preparation method of hydrophobic composite coating
A composite coating and hydrophobic technology, applied in coatings, anti-corrosion coatings, etc., can solve problems such as unsatisfactory hydrophobicity, achieve good hydrophobicity and corrosion resistance, low production cost, and large contact angle of water droplets
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[0022] The present invention also provides a method for preparing a hydrophobic composite coating. The preparation method comprises: immersing the cleaned metal material in the hydrophobic composite material for 10-20 minutes, taking it out, standing still for 1-2 hours, and keeping it warm at 70-120°C for 20 minutes. ~35min, and then heat preservation at a high temperature of 250~350°C for 40~55min to obtain a hydrophobic composite coating; wherein, the hydrophobic composite material contains: 12%~18% of aluminum powder, 5%~5% of rare earth modified alloy powder 9%, rare earth modified alloy powder 0.6%~1.2%, chromate 2%~6%, molybdate 2%~6%, cyclohexanol 18%~22%, dodecylbenzenesulfonic acid Calcium 2% to 5%, styrene ethyl polyoxyethylene ether 2% to 4%, rare earth modified inorganic material powder 4% to 8%, and the balance is water; among them, the rare earth modified alloy powder is zinc powder , a mixture of neodymium powder, yttrium powder and copper powder; the rare eart...
Embodiment 1
[0042] A hydrophobic composite material, the weight percentage of each component in the material is: 12% of aluminum powder, 5% of rare earth modified alloy powder, 0.6% of rare earth modified alloy powder, 2% of chromate, molybdate 2%, cyclohexanol 18%, calcium dodecylbenzenesulfonate 2%, styrene ethyl polyoxyethylene ether 2%, rare earth modified inorganic material powder 4%, and the rest is water. Rare earth modified alloy powder 1, the weight percent of its composition is: Zn 36%, Nd 0.04%, Yb 0.03%, copper balance. Rare earth modified alloy powder 2, the weight percent of its composition is: Si 10%, Er 0.05%, Yb 0.03%, aluminum balance. Rare earth modified inorganic material powder: Al 2 o 3 23%, CaO 0.3%, ZnO 0.3%, BaO 3%, MnO 5%, Yb 2 o 3 3%, Fe 2 o 3 0.5%, TiO 2 1%, Er 2 o 3 0.03%, K 2 O 0.4%, B 2 o 3 0.3%, I SiO2.
Embodiment 2
[0044] A hydrophobic composite material, the weight percentage of each component in the material is: 14% of aluminum powder, 7% of rare earth modified alloy powder, 0.9% of rare earth modified alloy powder, 4% of chromate, molybdate 4%, cyclohexanol 20%, calcium dodecylbenzenesulfonate 4%, styrene ethyl polyoxyethylene ether 3%, rare earth modified inorganic material powder 6%, and the rest is water. Rare-earth modified alloy powder 1, the weight percent of its composition is: Zn 38%, Nd 0.06%, Yb 0.05%, copper balance. Rare earth modified alloy powder 2, the weight percent of its composition is: Si 11%, Er 0.07%, Yb 0.05%, aluminum balance. Rare earth modified inorganic material powder: Al 2 o 3 25%, CaO 0.5%, ZnO 0.4%, BaO 4%, MnO 7%, Yb 2 o 3 5%, Fe 2 o 3 0.7%, TiO 2 2%, Er 2 o 3 0.06%, K 2 O 0.7%, B 2 o 3 0.4%, the balance is SiO2.
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