| 摘要 |
PROBLEM TO BE SOLVED: To provide a fin material for a heat exchanger, and its manufacturing method, for showing a hydrophilic property and continuousness of the hydrophilic property in a short time. SOLUTION: This fin material 1 for the heat exchanger is composed of a base 2, and a photocatalyst layer 3 formed on a surface of the base 2. The photocatalyst layer 3 is formed by dispersing photocatalytic particles 32 into a base resin 31 composed of a silicone resin. The silicone resin has a contact angle with the water, of 85°or less, when a coating film composed of only a silicone resin is formed without including the photocatalytic particles. A content of the photocatalytic particles 32 is 10-80 PHR. COPYRIGHT: (C)2009,JPO&INPIT
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