Journal of Materials Science

, Volume 50, Issue 22, pp 7282–7292 | Cite as

Thermodynamic analysis of water vapour sorption behaviour of juvenile and mature wood of Abies alba Mill.

  • Cristina SimónEmail author
  • Luis García Esteban
  • Paloma de Palacios
  • Francisco García Fernández
  • Raquel Martín-Sampedro
  • María E. Eugenio
Original Paper


The hygroscopicity and thermodynamic properties of juvenile and mature wood of Abies alba Mill. were studied through the 15, 35 and 50 °C sorption isotherms. The Guggenheim, Anderson and de Boer-Dent model was used to fit the isotherms. The thermodynamic parameters were obtained from the sorption isotherms by applying the integration method of the Clausius–Clapeyron equation. The chemical composition of both types of wood (extractives, lignin and carbohydrate polymer-cellulose and hemicellulose-content) was determined, and infrared spectroscopy and X-ray diffractograms were used to identify any chemical modifications and changes in the crystal structure of the cell wall. The mature wood has more cellulose and hemicellulose content and less extractives content than the juvenile wood. The shorter crystallite length in the mature wood creates a higher amount of amorphous zones and, as a consequence, a higher number of access areas to the –OH groups. The combination of these phenomena explains the different hygroscopic behaviour between the juvenile and the mature wood, as the latter has higher moisture content in the three isotherms. As regards the thermodynamic properties, the amount of energy involved in the sorption process is greater in the mature wood than in the juvenile wood.


Sorption Isotherm Equilibrium Moisture Content Crystallinity Index Isosteric Heat Juvenile Wood 
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.



This study is part of the AGL2009-12801 Project of the 2008–2011 Spanish National Plan for Scientific Research, Development and Technological Innovation, funded by the Spanish Ministry of Science and Innovation.


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Copyright information

© Springer Science+Business Media New York 2015

Authors and Affiliations

  • Cristina Simón
    • 1
    Email author
  • Luis García Esteban
    • 1
  • Paloma de Palacios
    • 1
  • Francisco García Fernández
    • 1
  • Raquel Martín-Sampedro
    • 2
  • María E. Eugenio
    • 2
  1. 1.Departamento Sistemas y Recursos Naturales. Cátedra de Tecnología de la Madera. Escuela Técnica Superior de Ingenieros de MontesUniversidad Politécnica de MadridMadridSpain
  2. 2.Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria, INIAMadridSpain

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