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Functional nanoscale additives for ultra-durable powder-coating polymers

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Abstract

Surface-modified titania nanoparticles were prepared and their suitability as additives for the long-term UV-photoprotection of polymer materials was investigated. It was demonstrated that the functionalization of nano-TiO2 with different fatty acid and phosphonate-based grafting reagents has a beneficial effect on the long-term stability of polyester composites under accelerated weathering conditions. These results are of considerable interest for the development of robust organic–inorganic hybrid systems that can be utilized as transparent but UV-resistant protective layers for outdoor applications.

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Acknowledgments

Financial support from BMVIT and FFG (Austrian Nano Initiative Programme NSI cluster project NanoPow) is gratefully acknowledged. We thank Günter Hesser for the electron microscope imaging.

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Authors and Affiliations

  1. Institute of Inorganic Chemistry, Johannes Kepler University Linz (JKU), Altenbergerstrasse 69, 4040, Linz, Austria

    Dietmar Holzmann, Wolfgang Schöfberger & Günther Knör

  2. Tiger Coatings GmbH & Co. KG, Negrellistrasse 36, 4600, Wels, Austria

    Dietmar Holzmann, Dieter Holzinger & Thomas Schmidt

Authors
  1. Dietmar Holzmann
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  2. Wolfgang Schöfberger
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  3. Dieter Holzinger
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  4. Thomas Schmidt
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  5. Günther Knör
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Corresponding author

Correspondence to Günther Knör.

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Holzmann, D., Schöfberger, W., Holzinger, D. et al. Functional nanoscale additives for ultra-durable powder-coating polymers. Monatsh Chem 142, 855–860 (2011). https://doi.org/10.1007/s00706-011-0516-4

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  • DOI: https://doi.org/10.1007/s00706-011-0516-4

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