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Artículos en revistas:
Thermodynamic analysis of water vapour sorption behaviour of juvenile and mature wood of Abies alba Mill.
Año:2015
Áreas de investigación
  • Caracteristicas de los materiales
Datos
Descripción
The hygroscopicity and thermodynamic properties of juvenile and mature wood of Abies alba Mill. were studied through the 15, 35 and 50 ºC 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.
Internacional
Si
JCR del ISI
Si
Título de la revista
Journal of Materials Science
ISSN
0022-2461
Factor de impacto JCR
2,305
Información de impacto
Datos JCR del año 2013
Volumen
50
DOI
10.1007/s10853-015-9283-7
Número de revista
22
Desde la página
7282
Hasta la página
7292
Mes
SIN MES
Ranking
Esta actividad pertenece a memorias de investigación
Participantes
  • Autor: Cristina Simon Garcia (UPM)
  • Autor: Luis Garcia Esteban (UPM)
  • Autor: Paloma de Palacios De Palacios (UPM)
  • Autor: Francisco Garcia Fernandez (UPM)
  • Autor: Raquel Martín Sampedro (INIA)
  • Autor: María Eugenia Eugenio (INIA)
Grupos de investigación, Departamentos, Centros e Institutos de I+D+i relacionados
  • Creador: Grupo de Investigación: Tecnología de la Madera y el Corcho
  • Departamento: Sistemas y Recursos Naturales
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