| 摘要 |
PURPOSE:To be able to provide an aluminum-made heat exchanger with no unpleasant smells by forming a synthetic resin-made anticorrosive film with an antisceptic agent or a hydrophilic film with an antisceptic agent on the surfaces of fins. CONSTITUTION:On the surfaces of fins, 3 a composite film which is composed of a synthetic anticorrosive film 9 and a hydrophilic film 8 formed on its surface and has an antisceptic agent 7 at least in one film of the two, the film 9 with the agent 7, or the film 8 with the agent 8 is formed. As an antisceptic agent, benzoic acid or its salt, salicylic acid or its salt, sorbic acid or its salt, dehydroacetic acid or its salt, ester p-hydroxybenzoate acid group, and 2-(2- furyl)-3(5-nitro-2-furyl) amide acrylate. |
