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Aging of wood: Analysis of color changes during natural aging and heat treatment

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Veröffentlicht/Copyright: 7. Februar 2011
Holzforschung
Aus der Zeitschrift Band 65 Heft 3

Abstract

The color properties of aging wood samples from historical buildings have been compared with those of recent wood samples that were heat treated at temperatures ranging from 90°C to 180°C. The results of kinetic analysis obtained by the time-temperature superposition method showed that the color change during natural aging was mainly due to a slow and mild oxidation process. In other words, heat treatment could accelerate the changes in wood color that occur during aging. In one sample, the color change (ΔE*ab) after 921 years at ambient temperature was almost equivalent to that of heating (artificial aging) approximately for 6.7 h at 180°C. The results have been interpreted that the aging and the subsequent change in wood color begin at the time of tree harvesting.

Keywords: CIEL*a*b*; color change; heat treatment; historical building; kinetic analysis; natural aging
Corresponding author. Research Institute for Sustainable Humanosphere, Kyoto University, Gokasho, Uji, Kyoto 611-0011, Japan
Received: 2010-5-28
Accepted: 2010-12-2
Published Online: 2011-02-07
Published Online: 2011-02-07
Published in Print: 2011-05-01

©2011 by Walter de Gruyter Berlin New York

Artikel in diesem Heft

  1. Publisher’s Note
  2. Publisher’s Note
  3. ORIGINAL ARTICLES
  4. Brightness reversion of eucalyptus kraft pulp: Effect of carbonyl groups generated by hypochlorous acid oxidation
  5. MgSO4 vs. Mg(OH)2 as a cellulose protector in oxygen delignification
  6. Hydrogen peroxide and supercritical carbon dioxide: a new bleaching stage for Eucalyptus kraft-O2 pulps
  7. Preparation and physical characterization of strongly swellable oligo(oxyethylene) lignin hydrogels
  8. Activation of pine kraft lignin by Fenton-type oxidation for cross-linking with oligo(oxyethylene) diglycidyl ether
  9. Determination of pectin content of eucalyptus wood
  10. Theory of transport processes in wood below the fiber saturation point. Physical background on the microscale and its macroscopic description
  11. The effect of galactan content on the mechano-sorptive strain in loblolly pine
  12. Genetic and environmental variation in heartwood colour of Australian blackwood (Acacia melanoxylon R.Br.)
  13. Aging of wood: Analysis of color changes during natural aging and heat treatment
  14. Thermal behaviour of Norway spruce and European beech in and between the principal anatomical directions
  15. Air-coupled ultrasound inspection of glued laminated timber
  16. Optical characteristics of wood investigated by time-of-flight near infrared spectroscopy
  17. Comparison of NDE techniques for assessing mechanical properties of unjointed and finger-jointed lumber
  18. Potential of pulp and paper sludge as a formaldehyde scavenger agent in MDF resins
  19. FT-IR imaging microscopy to localise and characterise simultaneous and selective white-rot decay within spruce wood cells
  20. Effects of ionic strength, monoethanolamine, copper, and pH on adsorption of alkyl dimethyl benzyl ammonium chloride in wood
  21. Long-term performance of fused borate rods for limiting internal decay in Douglas-fir utility poles
  22. SHORT NOTE
  23. Composition of the heartwood essential oil of incense cedar (Calocedrus decurrens Torr.)
  24. Meetings
  25. Meetings
https://doi.org/10.1515/hf.2011.040
Schlagwörter für diesen Artikel
CIEL*a*b*; color change; heat treatment; historical building; kinetic analysis; natural aging

Artikel in diesem Heft

  1. Publisher’s Note
  2. Publisher’s Note
  3. ORIGINAL ARTICLES
  4. Brightness reversion of eucalyptus kraft pulp: Effect of carbonyl groups generated by hypochlorous acid oxidation
  5. MgSO4 vs. Mg(OH)2 as a cellulose protector in oxygen delignification
  6. Hydrogen peroxide and supercritical carbon dioxide: a new bleaching stage for Eucalyptus kraft-O2 pulps
  7. Preparation and physical characterization of strongly swellable oligo(oxyethylene) lignin hydrogels
  8. Activation of pine kraft lignin by Fenton-type oxidation for cross-linking with oligo(oxyethylene) diglycidyl ether
  9. Determination of pectin content of eucalyptus wood
  10. Theory of transport processes in wood below the fiber saturation point. Physical background on the microscale and its macroscopic description
  11. The effect of galactan content on the mechano-sorptive strain in loblolly pine
  12. Genetic and environmental variation in heartwood colour of Australian blackwood (Acacia melanoxylon R.Br.)
  13. Aging of wood: Analysis of color changes during natural aging and heat treatment
  14. Thermal behaviour of Norway spruce and European beech in and between the principal anatomical directions
  15. Air-coupled ultrasound inspection of glued laminated timber
  16. Optical characteristics of wood investigated by time-of-flight near infrared spectroscopy
  17. Comparison of NDE techniques for assessing mechanical properties of unjointed and finger-jointed lumber
  18. Potential of pulp and paper sludge as a formaldehyde scavenger agent in MDF resins
  19. FT-IR imaging microscopy to localise and characterise simultaneous and selective white-rot decay within spruce wood cells
  20. Effects of ionic strength, monoethanolamine, copper, and pH on adsorption of alkyl dimethyl benzyl ammonium chloride in wood
  21. Long-term performance of fused borate rods for limiting internal decay in Douglas-fir utility poles
  22. SHORT NOTE
  23. Composition of the heartwood essential oil of incense cedar (Calocedrus decurrens Torr.)
  24. Meetings
  25. Meetings
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