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Effect of nano-Al2O3 particles on the corrosion behavior of alkyd based waterborne coatings

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Abstract

A modification in the alkyd based waterborne coatings was studied with the addition of 0.05%, 0.1%, 0.2%, and 0.3% nano-Al2O3. Corrosion performance of the nano-composite coatings were evaluated by applying these nanocomposites on mild steel substrate and exposing them to salt spray, humidity, and accelerated weathering. Mechanical properties were studied by subjecting the coating to scratch and abrasion test. The results showed that, with an increase in the concentration of nano-Al2O3 there was an improvement in the corrosion resistance, UV resistance, and mechanical properties of the coatings indicating the positive effect of addition of nano-Al2O3 particles in the coatings. Further, the transparency of the coating was not altered, maintaining the optical clarity of the coating.

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Authors and Affiliations

  1. Indian Institute of Technology, Bombay, Mumbai, 400076, India

    Shailesh K. Dhoke & A. S. Khanna

  2. Worlee-Chemie India Pvt. Ltd, Maruti Tower, Shop No-35, Sector-11, C·B.D. Belapur, Navi, Mumbai, 400614, India

    T. Jai Mangal Sinha

Authors
  1. Shailesh K. Dhoke
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  2. T. Jai Mangal Sinha
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  3. A. S. Khanna
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Correspondence to Shailesh K. Dhoke.

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Dhoke, S.K., Mangal Sinha, T.J. & Khanna, A.S. Effect of nano-Al2O3 particles on the corrosion behavior of alkyd based waterborne coatings. J Coat Technol Res 6, 353–368 (2009). https://doi.org/10.1007/s11998-008-9127-3

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  • DOI: https://doi.org/10.1007/s11998-008-9127-3

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