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Sol–gel based protective coatings for copper products

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Abstract

Corrosion, fouling, and wearing of metal surfaces are the most common problems faced in industry as well as in environmental use. In the recent study, sol–gel based protective coatings were developed and deposited on different copper substrates. Different chemical pretreatments were used to enhance the adhesion and spreadability of coatings on copper surfaces. Substantial improvement of the corrosion resistance of sol–gel coated copper surfaces was obtained by a salt spray test. In addition, the sol–gel coatings increased hydrophobic and easy-to-clean properties of the copper surface. Variation of the curing temperature of the coatings caused changes in the morphology, adhesion, and topography of the sol–gel coatings. On the basis of the important information obtained in this study, the protective properties of sol–gel coatings can be tailored for copper and copper alloy substrates.

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Acknowledgment

Finnish metal industry, TEKES, and VTT are acknowledged for funding the PUHTEET-project.

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Authors and Affiliations

  1. VTT Technical Research Centre of Finland, Sinitaival 6, P.O. Box 1300, Tampere, 33101, Finland

    Juha Nikkola & Juha Mannila

  2. VTT Technical Research Centre of Finland, Betonimiehenkuja 5, P.O. Box 1000, Espoo, 02044 VTT, Finland

    Riitta Mahlberg

  3. VTT Technical Research Centre of Finland, Metallimiehenkuja 8, P.O. Box 1000, Espoo, 02044 VTT, Finland

    Jarmo Siivinen & Amar Mahiout

  4. Millidyne Ltd., Hermiankatu 6-8 G, Tampere, 33720, Finland

    Mika Kolari

Authors
  1. Juha Nikkola
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  2. Juha Mannila
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  3. Riitta Mahlberg
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  4. Jarmo Siivinen
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  5. Mika Kolari
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  6. Amar Mahiout
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Correspondence to Juha Nikkola.

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Nikkola, J., Mannila, J., Mahlberg, R. et al. Sol–gel based protective coatings for copper products. J Coat Technol Res 5, 335–344 (2008). https://doi.org/10.1007/s11998-007-9069-1

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  • DOI: https://doi.org/10.1007/s11998-007-9069-1

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