Influence of treatment temperature and duration on selected biological, mechanical, physical and optical properties of thermally modified timber

Wood Material Science and Engineering

Volumn 2, Issue 2, 2007, Pages 66-76

  Welzbacher, Christian Robert ^a   Brischke, Christian ^a   Rapp, Andreas Otto ^a  

^a LEIBNIZ UNIVERSITY HANNOVER   (Germany)

Author keywords

ASE; CIE L*A*B* colour measurements; Decrease in mass; Equilibrium moisture content; Heat treatment intensity; High energy multiple impact test; Quality control

Indexed keywords

EID: 38849142042     PISSN: 17480272     EISSN: 17480280     Source Type: Journal    
DOI: 10.1080/17480270701770606     Document Type: Article

References (41)

1. Boonstra, M. J. & Tjeerdsma, B. (2006). Chemical analysis of heat treated softwoods. Holz als Roh- und Werkstoff, 64, 204-211.
2. Boonstra, M. J., Pizzi, A., Zomers, F., Ohlmeyer, M. & Paul, W. (2006). The effects of a two stage heat treatment process on the properties of particleboard. Holz als Roh- und Werkstoff, 64, 157-164.
3. Bourgois, P. J., Janin, G. & Guyonnet, R. (1991). La mesure de couleur. Une methode d'étude et d'optimisation des transformations chimiques du bois thermolyse. Holzforschung, 45, 377-382.
4. Brischke, C. (2003). Untersuchung der Eignung von Tannenholz für die thermische Modifikation. Diplomarbeit, Fachbereich Biologie, Universität Hamburg.
5. Brischke, C., Welzbacher, C. R. & Rapp, A. O. (2006). Detection of fungal decay by high-energy multiple impact (HEMI) testing. Holzforschung, 60, 217-222.
6. Brischke, C., Welzbacher, C. R., Brandt, K. & Rapp, A. O. (2007). Quality control of thermally modified timber: Interrelationship between heat treatment intensities and CIE L*a*b* color data on homogenized wood samples. Holzforschung, 61, 19-22.
7. Burmester, A. (1970). Formbeständigkeit von Holz gegenüber Feuchtigkeit - Grundlagen und Vergütungsverfahren. BAM Berichte Nr. 4.
8. Burmester, A. (1981). Dimensional stabilisation of wood (Document No. IRG/WP/3171). Stockholm: International Research Group on Wood Protection.
9. Del Menezzi, C. H. S. & Tomaselli, I. (2006). Contact thermal post-treatment of oriented Strandboard to improve dimensional stability: A preliminary study. Holz als Roh- und Werkstoff, 64, 212-217.
10. DIN 52 183 (1977) Prüfung von Holz. Bestimmung des Feuchtigkeitsgehaltes.
11. DIN 52 184 (1979) Prüfung von Holz. Bestimmung der Quellung und Schwindung.
12. Dirol, D. & Guyonnet, R. (1993). The improvement of wood durability by retification process (Document No. IRG/WP/ 93-40015). Stockholm: International Research Group on Wood Protection.
13. European Committee for Standardization (1994) EN 350-1. Durability of wood and wood-based products - Natural durability of solid wood - Part 1: Guide to the principles of testing and classification of the natural durability of wood.
14. European Committee for Standardization (1996) EN 113. Wood preservatives - Determination of toxic values of wood preservatives against wood destroying Basidiomycetes cultures on agar medium.
15. Goroyias, G. J. & Hale, M. D. (2002). Heat treatment of wood strands for OSB production: Effect on the mechanical properties, water absorption and dimensional stability (Document No. IRG/WP/02-40238). Stockholm: International Research Group on Wood Protection.
16. Jämsä, S. & Viitaniemi, P. (2001). Heat treatment of wood. Better durability without chemicals. In A. O. Rapp (Ed.), Review on heat treatments of wood. Proceedings of the Special Seminar on Heat Treatments, Antibes, France, 9 February 2001 (pp. 1722). Luxembourg: Office for Official Publications of the European Communities.
17. Johansson, D. & Morén, T. (2006). The potential of colour measurements for strength prediction of thermally treated wood. Holz als Roh- und Werkstoff, 64, 104-110.
18. Leithoff, H. & Peek, R.-D. (1998). Hitzebehandlung-Eine Alternative zum chemischen Holzschutz. Tagungsband zur 21. Holzschutz-Tagung der DGfH in Rosenheim, 97-108.
19. Mazela, B., Zakrzewski, R., Grzeskowiak, W., Cofta, G. & Bartkowiak, M. (2003). Preliminary research on the biological resistance of thermally modified wood. In J. Van Acker & C. Hill (Eds.), Proceedings of the First European Conference on Wood Modification, Ghent, Belgium, 3-4 April 2003 (pp. 113-120). Ghent University (RUG).
20. Mazela, B., Zakrzewski, R., Grzeskowiak, W., Cofta, G. & Bartkowiak, M. (2004). Resistance of thermally modified wood to basidiomycetes. http://www.ejpau.media.pl; EJPAU, Wood Technology, 7(1).
21. Metsä-Kortelainen, S., Antikainen, T. & Viitaniemi, P. (2006). The water absorption of sapwood and heartwood of Scots pine and Norway spruce heat-treated at 170°C, 190°C, 210°C and 230°C. Holz als Roh- und Werkstoff, 64, 192-197.
22. Mitsui, K., Takada, H., Sugiyama, M. & Hasegawa, R. (2001). Changes in the properties of light-irradiated wood with heat treatment. Part 1. Effect of treatment conditions on the change in color. Holzforschung, 55, 601-605.
23. Nuopponen, M., Vuorinen, T., Jämsä, S. & Viitaniemi, P. (2003). The effect of a heat treatment on the behaviour of extractives in softwood studied by FTIR spectroscopic methods. Wood Science and Technology, 37, 109-115.
24. Obataya, E., Higashihara, T. & Tomita, B. (2002). Hygroscopicity of heat treated wood III. Effect of steaming on the hygroscopicity of wood. Mokuzai Gakkaishi, 48, 358-355.
25. Paul, W., Ohlmeyer, M., Leithoff, H., Boonstra, M. J. & Pizzi, A. (2006a). Optimising the properties of OSB by a one-step heat pre-treatment process. Holz als Roh- und Werkstoff, 64, 227-234.
26. Paul, W., Ohlmeyer, M. & Leithoff, H. (2006b). Thermal modification of OSB-strands by a one-step heat pretreatment - Influence of temperature on weight loss, hygroscopicity and improved resistance. Holz als Roh- und Werkstoff, 65, 57-63 .
27. Pöhlmann, R. (2001). Untersuchungen zur Bewitterungsbeanspru- chung an einem Objekt in ökologischer Holzbauweise. Diplomarbeit, Fachhochschule Eberswalde, Fachbereich Holztechnik.
28. Popper, R., Niemz, P. & Eberle, G. (2005). Untersuchungen zum Sorptions- und Quellungsverhalten von thermisch behandeltem Holz. Holz als Roh- und Werkstoff, 63, 135-148.
29. Rapp, A. O. & Sailer, M. (2001). Oil-heat treatment of wood in Germany - State of the art. European Commission, Directorate-General for Research, EUR 19885. Proceedings of the Special Seminar, Antibes, France, 9 February 2001 (pp. 47-64).
30. Rapp, A. O., Sailer, M. & Brand, K. (2003). Umweltfreundliche Konservierung von Massivholz und Massivholzprodukten für den Außenbereich. Schlussbericht für das BMBF-Projekt 0339862. Hamburg: Bundesforschungsanstalt für Forst-und Holzwirtschaft (BFH).
31. Rapp, A. O., Brischke, C. & Welzbacher, C. R. (2006). Interrelationship between the severity of heat treatments and sieve fractions after impact ball milling: A mechanical test for quality control of thermally modified wood. Holzforschung, 60, 64-70.
32. Repellin, V. & Guyonnet, R. (2003). Evaluation of heat treated beech by non-destructive testing. In J. Van Acker & C. Hill (Eds.), Proceedings of the First European Conference on Wood Modification, Ghent, Belgium, 3-1 April 2003 (pp. 73-82). Ghent University (RUG).
33. Repellin, V. & Guyonnet, R. (2005). Evaluation of heat-treated wood swelling by differential scanning calorimetry in relation to chemical composition. Holzforschung, 59, 28-34
34. Sailer, M., Rapp, A. O., Leithoff, H. & Peek, R.-D. (2000). Vergütung von Holz durch Anwendung einer Öl-Hitze-Behandlung. Holz als Roh- und Werkstoff, 58, 15-22.
35. Stamm, A. J., Burr, H. K. & Kline, A. A. (1946). Heat stabilized wood (staybwood). Industrial and Engineering Chemistry, 38, 630-634.
36. Sundqvist, B. (2004). Colour changes and acid formation in wood during heating. Doctoral thesis, Luleå University of Technology, Sweden.
37. Syrjänen, T. & Kangas, E. (2000). Heat treated timber in Finland (Document No. IRG/WP/00-40158). Stockholm: International Research Group on Wood Protection.
38. Tjeerdsma, B. F., Stevens, M., Militz, H. & Van Acker, J. (2002). Effect of process conditions on moisture content and decay-resistance of hydro-thermally treated wood. Holzforschung und -Verwertung, 5, 94-99
39. Wang, J. Y. & Cooper, P. A. (2005). Effect of oil type, temperature and time on moisture properties of hot oil-treated wood. Holz als Roh- und Werkstoff, 63, 417-122.
40. Weiland, J. J. & Guyonnet, R. (2003). Study of chemical modifications and fungi degradation of thermally modified wood using DRIFT spectroscopy. Holz als Roh- und Werkstoff, 61, 216-220.
41. Wienhaus, O. (1999). Modifizierung des Holzes durch eine milde Pyrolyse-Abgeleitet aus den allgemeinen Prinzipien der Thermolyse des Holzes. Wissenschaftliche Zeitschrift der Technischen Universität Dresden, 48(2), 17-22.