| 摘要 |
PURPOSE:To obtain the aluminum fin material prominent in hydrophilic property by a method wherein surface treating agent, consisting of ultraviolet rays or electron radiation curing coating and surfactant, is coated on the surface of the foil of aluminum or the alloy thereof, thereafter, ultraviolet rays or electron rays are projected to form a hydrophilic film. CONSTITUTION:The solution of a surface treating agent, consisting of polyester acrylate series ultraviolet rays curing coating and anionic surfactant or dialkyl sulfonic acid sodium, is coated on both surfaces of the foil and ultraviolet rays are projected on a sample for 1-3sec by an ultraviolet rays curing device equipped with a high-voltage mercury lamp to form a hydrophilic film 3. The fin material, obtained in such a manner, has the prominent hydrophilic and water-resistant properties.
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