| 摘要 |
PURPOSE:The titled fin material which has improved hydrophilic nature and has no cracks since use of water-glass is not required to improve hydrophilic nature, obtained by forming a film of coating containing a specific ethylenediamine derivative on the surface of a main body. CONSTITUTION:The aimed fin material obtained by forming a film of coating containing an ethylenediamine derivative shown by the formula (x and y are 2-10) on the surface of a main body of fin material. The film of coating is formed by dissolving a film-forming substance such as acrylic acid resin, etc., and the compound shown by the formula in an organic solvent such as benzene and coating the surface of main body of fin material with the solution. Then, the film of coating is dried to evaporate the organic solvent. |
