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Performance of exterior semitransparent PVDF–acrylic coatings

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Abstract

The purpose of this study was to investigate the performance of a semitransparent PVDF–acrylic coating on two wood species: Black spruce and White pine. An accelerated aging test was performed on the PVDF–acrylic coating and the results obtained were compared with those obtained for a water-based acrylic coating. Color changes were found to be more significant for the acrylic coating, especially after 1000 h of exposure, and for the White pine panels. Infrared spectroscopy revealed that the acrylic resin was more affected by the accelerated aging test than the PVDF resin, although X-ray photoelectron spectroscopy revealed that PVDF was slightly affected at the extreme surface (first 10 nm). Star-shaped defects were found at the surface of the White pine panels finished with the PVDF–acrylic coating. Experiments revealed that the PVDF–acrylic coating does not seem to be flexible enough to sustain resin exudation or other stresses.

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Acknowledgments

The authors want to thank Isabelle Gélinas and Renaud Gilbert from Société Laurentide for their help, as well as Tommy Martel for the experimental work.

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Authors and Affiliations

  1. FPInnovations Wood Products Division, 319 rue Franquet, Quebec City, QC, G1P 4R4, Canada

    Véronic Landry, Pierre Blanchet & Tommy Martel

  2. Société Laurentide, Shawinigan, QC, Canada

    Luciano Zotig

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  1. Véronic Landry
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  2. Pierre Blanchet
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  3. Luciano Zotig
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  4. Tommy Martel
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Correspondence to Pierre Blanchet.

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Landry, V., Blanchet, P., Zotig, L. et al. Performance of exterior semitransparent PVDF–acrylic coatings. J Coat Technol Res 10, 37–46 (2013). https://doi.org/10.1007/s11998-012-9421-y

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  • DOI: https://doi.org/10.1007/s11998-012-9421-y

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