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Weathering of chemically modified wood

Bewitterung von chemisch behandeltem Holz. Natürliche Bewitterung von acetyliertem Kiefernholz (pinus radiata): vorläufige Ergebnisse

Natural weathering of acetylated radiata pine: Preliminary results

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Abstract

The weathering characteristics and microscopic structure of unfinished acetylated and untreated radiata pine are reported. Samples were exposed outdoors over 28 weeks in Rotorua, New Zealand. Acetylated veneer had improved checking resistance when compared with untreated veneer, confirming results of a previous study on accelerated weathering of untreated and acetylated veneer. Colour changes of naturally weathered untreated and acetylated veneer were very different to that of artificially weathered veneer. Acetylated veneer was only slightly less grey than untreated veneer after 28 weeks' natural weathering.

Zusammenfassung

Charakteristische Erscheinungen und die Feinstruktur von acetyliertem und unbehandeltem Kiefernholz werden beschrieben. Die Proben waren über 28 Wochen dem Klima von Rotorua, Neuseeland, ausgesetzt. Die acetylierten Furniere zeigten weniger Rißbildung als unbehandeltes Furnier. Dies bestätigt frühere Beobachtungen an künstlich (beschleunigt) bewitterten Proben. Die Farbänderungen sind nach der natürlichen Bewitterung allerdings sehr verschieden von denen nach künstlicher Bewitterung. Acetyliertes Furnier vergraut etwas weniger als unbehandelte Furniere nach einer Bewitterungsdauer von 28 Wochen.

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Authors and Affiliations

  1. Forest Research Institute, Rotorua, New Zealand

    E. A. Dunningham, D. V. Plackett & A. P. Singh

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  1. E. A. Dunningham
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  2. D. V. Plackett
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  3. A. P. Singh
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Dunningham, E.A., Plackett, D.V. & Singh, A.P. Weathering of chemically modified wood. Holz als Roh-und Werkstoff 50, 429–432 (1992). https://doi.org/10.1007/BF02662780

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  • DOI: https://doi.org/10.1007/BF02662780

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