Aluminum alloy surfacehydrophobic treatment technology
A technology of aluminum alloy surface and hydrophobic treatment, applied in the field of aluminum alloy, can solve the problems of general hydrophobicity of aluminum alloy surface, limited improvement effect, unable to meet the needs of the market, etc., to achieve enhanced hydrophobicity, improved contact angle, and corrosion resistance. improved effect
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Embodiment 1
[0022] A process for hydrophobic treatment of aluminum alloy surface, comprising the following steps:
[0023] (1) Soak the aluminum alloy plate in an ethanol solution with a mass fraction of 60% for 30 minutes, then filter, wash, and dry to constant weight;
[0024] (2) Put the aluminum alloy plate after the above treatment into clean water, heat to 80°C, keep warm, add sodium hydroxide to the clean water, adjust the pH to 11.2, keep stirring for 35 minutes, then filter, wash, and dry to constant weight;
[0025] (3) Heat the aluminum alloy plate after the above treatment to 305°C in a nitrogen atmosphere, keep it warm for 40 minutes, and then cool it naturally to room temperature;
[0026] (4) Put the aluminum alloy plate after the above treatment into the ethanol solution, add hydroxyacetophenone and p-hydroxybenzaldehyde in sequence to the ethanol solution, stir well, then add concentrated hydrochloric acid dropwise, under the protection of nitrogen atmosphere, 90 ℃ wate...
Embodiment 2
[0036] A process for hydrophobic treatment of aluminum alloy surface, comprising the following steps:
[0037] (1) Soak the aluminum alloy plate in an ethanol solution with a mass fraction of 65% for 30-40 minutes, then filter, wash, and dry to constant weight;
[0038] (2) Put the aluminum alloy plate after the above treatment into clean water, heat to 80°C, keep warm, add sodium hydroxide to the clean water, adjust the pH to 11.5, keep stirring for 35min, then filter, wash, and dry to constant weight;
[0039] (3) Heat the aluminum alloy plate after the above treatment to 315°C in a nitrogen atmosphere, keep it warm for 40 minutes, and then cool it naturally to room temperature;
[0040] (4) Put the above treated aluminum alloy plate into the ethanol solution, add hydroxyacetophenone and p-hydroxybenzaldehyde in sequence to the ethanol solution, stir well, then add concentrated hydrochloric acid dropwise, under the protection of nitrogen atmosphere, 92 ℃ water bath, react ...
Embodiment 3
[0050] A process for hydrophobic treatment of aluminum alloy surface, comprising the following steps:
[0051] (1) Soak the aluminum alloy plate in an ethanol solution with a mass fraction of 62% for 35 minutes, then filter, wash, and dry to constant weight;
[0052] (2) Put the above treated aluminum alloy plate into clean water, heat to 80°C, keep warm, add sodium hydroxide to the clean water, adjust the pH to 11.3, keep stirring for 35 minutes, then filter, wash, and dry to constant weight;
[0053] (3) Heat the aluminum alloy plate after the above treatment to 308°C in a nitrogen atmosphere, keep it warm for 40 minutes, and then cool it naturally to room temperature;
[0054] (4) Put the above treated aluminum alloy plate into the ethanol solution, add hydroxyacetophenone and p-hydroxybenzaldehyde in sequence to the ethanol solution, stir well, then add concentrated hydrochloric acid dropwise, under the protection of nitrogen atmosphere, 91 Under heat preservation in a w...
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