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Chemical analysis of heat treated softwoods

Chemische Analyse von wärmebehandeltem Holz

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Abstract

Heat treatment of wood has been found an effective method to improve dimensional stability and durability against biodegradation. A two-stage heat treatment of wood at relatively mild conditions (<200 °C) was investigated by using different chemical analysing methods, such as a wood chemical component analysis, CHNO-elemental analysis, UV-spectroscopy, and analysis of the acetyl and free hydroxyl group content. The results of this study contribute to a better understanding of the typical reaction mechanisms occurring and of the effect of heat treatment on the properties of wood, as described in previous 13C-NMR and FTIR studies of heat treated wood.

Zusammenfassung

Die Wärmebehandlung von Holz hat sich als ein wirksames Verfahren zur Verbesserung der Dimensionsstabilität und Fäuleresistenz erwiesen. In dieser Studie wurde eine zweistufige Wärmebehandlung von Holz unter relativ milden Bedingungen (<200 °C) untersucht. Dabei wurden verschiedene chemische Analyseverfahren, wie zum Beispiel chemische Analyse der Holzbestandteile, CHNO-Elementaranalyse, UV-Spektroskopiesowie Analyse des Acetylgehalts und der freien Hydroxylgruppen angewandt. Die Ergebnisse dieser Studie tragen zu einem besseren Verständnis der auftretenden Reaktionsmechanismen sowie der Wirkung einer Wärmebehandlung auf die Eigenschaften von Holz bei, die bereits in früheren 13C-NMR und FTIR Studien über wärmebehandeltes Holz beschrieben wurden.

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Authors and Affiliations

  1. Plato International BV, 2159, 6802 CD, Arnhem, Netherlands

    Michiel J. Boonstra

  2. SHR Hout Research, 497, 6700 AL, Wageningen, Netherlands

    Bôke Tjeerdsma

Authors
  1. Michiel J. Boonstra
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  2. Bôke Tjeerdsma
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Correspondence to Michiel J. Boonstra.

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Boonstra, M., Tjeerdsma, B. Chemical analysis of heat treated softwoods. Holz Roh Werkst 64, 204–211 (2006). https://doi.org/10.1007/s00107-005-0078-4

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