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Wood Science and Technology

, Volume 11, Issue 2, pp 125–131 | Cite as

Effect of hydro-thermal treatment of green beech wood on its chemical and physco-mechanical properties

  • R. Babicki
  • T. Grzeczyński
  • H. Wróblewska
Article
  • 90 Downloads

Summary

Preliminary investigations were carried out aiming at the establishment of relationships between chemical, physical, and mechanical properties of beech wood under the influence of heating in water at 50°C and 100°C at pH values from 2.8 to 8.5 and with heating times up to 25 hours. It was found that heating of beech wood in water at 50°C does not produce remarkable changes in its properties. When green wood was heated at 100°C, insignificant changes in its density, shrinking, and α-cellulose content were observed, whereas a considerable decrease in strength was found when tested in a wet state. It was further observed that on prolonged heating, the reactions of the wood and the solutions used as a heating medium under-went distinct changes, attaining an equivalent value approximating the final pH of the wood.

Keywords

Mechanical Property Material Processing Preliminary Investigation Heating Time Considerable Decrease 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

  1. Grzeczyński, T. 1962. Einfluß der Erwärmung im Wasser auf vorübergehende und bleibende Formänderungen frischen Rotbuchenholzes. (Effect of Heating in Water on Permanent and Transient Deformations of Green Beech Wood). Holz Roh- Werkstoff 20: 210–216Google Scholar
  2. Grzeczyński, T. 1965. O vožmoznosti opredelenija stepeni rozrušenija drevesiny po pokazateljam eë mechaničeskich svoistv. (Determination of the degree of wood failure on the basis of its mechanical properties indices). Perpektivy Zakladneho Výskumu Dreva. Štátny Drevásky Výskumný Ustav. Bratislava. 275–288Google Scholar
  3. Grzeczyński, T. 1976. Badania nad zależnością wytrzmałości drewna od jego wilgotności. (Dependence of the strength of wood in its moisture content). Prace Instytutu Technologii Drewna R. 22, z. 3/4 (75/76): 15–55Google Scholar
  4. Kubinsky, E., Ifju, G. 1973. Influence of steaming on the properties of red oak. Part I. Structural and chemical changes. Wood Sc. 6: 87–94Google Scholar
  5. Kubinsky, E., Ifju, G. 1974. A above — Part 2. Changes in shrinking and related properties. Wood Sc. 7: 103–110Google Scholar
  6. Kürschner, K., Melcerová, A. 1965a. Über die chemischen Veränderungen des Buchenholzes bei thermischer Behandlung. Teil I. Chemische Veränderungen von Sägespänen bei 1–28 tägiger Erhitzung auf 80–160° C. Holzforschung 19: 161–171Google Scholar
  7. Kürschner, K., Melcerová, A. 1965b. Über die chemischen Veränderungen des Buchenholzes bei thermischer Behandlung. Teil II. Chemische Veränderungen von Buchenholzkanteln bei 1–2 tägiger Erhitzung auf 80–130° C, unter besonderer Berücksichtigung der UV-Absorptions-spektren. Holzforschung 19: 171–178Google Scholar
  8. Morze, Z. 1966. Wpływ nasycania wodorotlenkiem sodu na sprężysto-plastyczne własnosci drewna. (Effect of treatment with sodium hydroxide on elastoplastic properties of wood). Poznańskie Towarzystwo Przyjaciół Nauk. Pr. Komis. Bud. Masz. Poznań 1966 t. 3 z. 7Google Scholar
  9. Plath, E., Plath, L. 1955. Papierchromatographische Untersuchungen an Dämpfkondensaten von Rotbuche. Holz Roh Werkstoff 13: 226–237Google Scholar
  10. Prosiński, S. 1969. Chemia Drewna (Chemistry of Wood). WarszawaGoogle Scholar
  11. Thompson, W. S. 1969. Effect of steaming and kiln drying on the properties of Southern Pine poles. Part 2. Chemical properties. Forest Prod. J. 19 (2): 37–43Google Scholar

Copyright information

© Springer-Verlag 1977

Authors and Affiliations

  • R. Babicki
    • 1
  • T. Grzeczyński
    • 1
  • H. Wróblewska
    • 1
  1. 1.Instytut Technologii DrewnaPoznańPoland

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