COMPOSITE COATING FILM, HEAT EXCHANGER COMPRISING SAME, AND METHOD FOR MANUFACTURING HEAT EXCHANGER
The present disclosure relates to a complex coating film, and a fin and tube type heat exchanger and a microchannel type heat exchanger comprising the same. The complex coating film in the present disclosure comprises a metallic material; a first coating layer being formed on the metallic material;...
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Format: | Patent |
Sprache: | eng ; fre ; ger |
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Zusammenfassung: | The present disclosure relates to a complex coating film, and a fin and tube type heat exchanger and a microchannel type heat exchanger comprising the same. The complex coating film in the present disclosure comprises a metallic material; a first coating layer being formed on the metallic material; and a second coating layer being formed on the first coating layer, wherein the first coating layer comprises 10-40 wt% of a first hydrophilic resin, 1-20 wt% of a metal compound, 5-20 wt% of an amide-based cross linker, 1-15 wt% of a silane compound and water as a remaining component, and the second coating layer comprises 1-20 wt% of a second hydrophilic resin, 1-20 wt% of a silica particle, 0.01-5 wt% of a cross linker, 0.1-5 wt% of a solvent, and water as a remaining component, providing long-lasting corrosion resistance and hydrophilicity to the complex coating film. |
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