Relations between chemical changes and mechanical properties of thermally treated wood 10th EWLP, Stockholm, Sweden, August 25–28, 2008

Elisabeth Windeisen; Helmut Bächle; Bernhard Zimmer; Gerd Wegener

doi:10.1515/HF.2009.084

Published by De Gruyter November 15, 2009

Relations between chemical changes and mechanical properties of thermally treated wood 10^th EWLP, Stockholm, Sweden, August 25–28, 2008

Elisabeth Windeisen , Helmut Bächle , Bernhard Zimmer and Gerd Wegener

From the journal Holzforschung

https://doi.org/10.1515/HF.2009.084

Showing a limited preview of this publication:

Abstract

Thermal treatments of wood (Fagus sylvatica and Fraxinus excelsior) were examined. The temperature load on wood causes characteristic changes in the chemical composition, which were determined by means of several defined methods. The results confirm that in addition to the degradation of polyoses lignin, known as the thermally most stable compound, also shows significant thermal alterations. In addition, mechanical properties of the specimens were examined in order to correlate these results with the effects of chemical changes of thermally treated wood. It was shown, e.g., that the decomposition of the polyoses can affect the strength properties both positively and negatively.

Keywords: ash; beech; chemical analyses; FTIR; NIR; physical and mechanical properties; thermal treatment

Corresponding author. Holzforschung München, Technische Universität München, Winzererstr. 45, D-80797 Munich, Germany windeisen@wzw.tum.de

Received: 2008-11-28

Accepted: 2009-2-25

Published Online: 2009-11-15

Published Online: 2009-07-24

Published in Print: 2009-11-01

Relations between chemical changes and mechanical properties of thermally treated wood 10^th EWLP, Stockholm, Sweden, August 25–28, 2008

Abstract

Journal and Issue

Articles in the same Issue