To provide a method for utilizing a copper or aluminum based favorable thermal conductivity material evenly and favorably formed with a coating superior in, not only heat resistance, adhesiveness, and corrosion resistance, but also in durability (a long term anticorrosion effect) as a latent heat recovery type heat exchanger.
The copper or aluminum based member for the latent heat recovery type heat exchanger is comprised by forming the coating including a high polymer having a methylene chain containing a fluorine substituent in a principal chain on an outer surface. The high polymer has 5-50 fluorine with respect to 100 carbon in atomic ratio in the principal chain, and an aromatic group is not substantially included in the principal chain. The high polymer has a hydrolytic silyl group indicated by a formula (wherein R1, R2 are the same or different alkyl group, alkoxyl group, or hydroxyl group, R3 is hydrogen or an alkyl group, and n indicates a natural number). It indispensably contains a component crosslinked via a siloxane bond.
OWAKI TAKESHI
Tadashi Sugakawa
Osamu Futakuchi
Hiroaki Ito
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