Ultra-hydrophobic aluminum foil and production method thereof

Abstract

The invention discloses an ultra-hydrophobic aluminum foil and a preparation method thereof. The preparation method of the ultra-hydrophobic aluminum foil comprises the following steps: processing an aluminum foil substrate by an aqueous solution of sodium hydroxide, cleaning the processed aluminum foil substrate, immersing the cleaned aluminum foil substrate in a prepared acidic solution to carry out etching treatment, cleaning the etched aluminum foil, immersing the aluminum foil in a prepared liquid hydrophobic material, and carrying out solidifying drying treatment to obtain the ultra-hydrophobic aluminum foil, wherein the liquid hydrophobic material is prepared from, by weight, 26-32 parts of a stearic acid solution, 16-20 parts of modified alkyd resin, 14-20 parts of nanometer titanium dioxide, 6-10 parts of fucoidan, 2-6 parts of neryl isovalerate, 2-8 parts of carboxymethylcellulose sodium and 4-8 parts of fluorinated polyethylene. The ultra-hydrophobic aluminum foil has the advantages of ultra-strong hydrophobicity, effective inhibition of condensation, substantial increase of the corrosion resistance of the aluminum foil and substantial prolongation of the service life of the aluminum foil, and the production method has the advantages of simplicity, small substrate damages, good apparent quality, and suitableness for wide promotion.

Description

technical field [0001] The invention relates to the technical field of aluminum foil manufacture, in particular to a superhydrophobic aluminum foil and a preparation method thereof. Background technique [0002] Aluminum foil has the advantages of light weight, extensibility, electrical conductivity, and good thermal conductivity. It is widely used in air-conditioning radiators, automobile radiators, cables, etc.; the surface of ordinary aluminum is hydrophilic, and it is prone to condensation, corrosion, microbial contamination, Frosting and other problems, when the surface temperature of the aluminum foil is lower than the dew point of the ambient air during the use of the machine, the frosting phenomenon of the aluminum foil will occur, which will cause problems such as water bridges, white powder, and peculiar smell, which not only reduces the heat transfer of the machine Performance and service life, but also increased energy consumption, while also bringing pollution t...

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Problems solved by technology

[0002] Aluminum foil has the advantages of light weight, extensibility, electrical conductivity, and good thermal conductivity. It is widely used in air-conditioning radiators, automobile radiators, cables, etc.; the surface of ordinary aluminum is hydrophilic, and it is prone to condensation, corrosion, microbial contamination, Frosting and other problems, when the surface temperature of the aluminum foil is lower than the dew point of the ambient air during the use of the machine, the frosting phenomenon of the aluminum foil will occur, which will cause problems such as water bridges, white powder, and peculiar smell, which not only reduces the heat transfer of the machine Performance and service life, but also increased energy consumption, but also brought pollution to the environment, endangering human health

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