Hydrophilic fins for a heat exchanger

Details Hydrophilic fins for a heat exchanger Hydrophilic fins for a heat exchanger

1985-02-21

1987-05-12

Davis, Jr., Albert W.

Heat exchange

With coated, roughened or polished surface

165913, 62272, 291573R, F28F 1318, F28F 1902

Patent

active

046641823

ABSTRACT:
A fin for a heat exchanger which is highly hydrophilic and rustproof comprises a substrate of aluminum or an aluminum alloy having thereon a hydrophilic coat including therein a proteinaceous substance having a peptide bond, e.g., gelatin. Further enhancement of the fin's affinity for water is obtained by using a hydrophilic coat prepared by mixing a water soluble coating material, such as acrylic paint, with the proteinaceous substance. The coat is made by applying a water-based coating composition including the proteinaceous substance to a substrate and drying it in the temperature range of 100.degree. to 250.degree. C., and preferably 180.degree. to 220.degree. C.

REFERENCES:
patent: 2505734 (1950-04-01), Freud
patent: 3958058 (1976-05-01), Stauner et al.
patent: 4172164 (1979-10-01), Meyer et al.
patent: 4200680 (1980-04-01), Sasazawa et al.
patent: 4241682 (1980-12-01), Konstandt
patent: 4421789 (1983-12-01), Kaneko et al.
patent: 4503907 (1985-03-01), Tanaka et al.

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