The water vapour sorption behaviour of wood.

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Abstract

The water vapour sorption properties of several commercial tropical hardwoods and temperate softwood species as well as thermally modified wood and acetylated wood has been studied. A dynamic vapour sorption apparatus was used for this investigation to give data on the sorption isotherms under equilibrium conditions as well as sorption kinetic behaviour. Small differences in the sorption isotherms were found between the wood species, but modification resulted in substantial changes to the sorption isotherms. The sorption isotherms were analysed using the Hailwood-Horrobin model. Sorption kinetics behaviour was found to be accurately described using the parallel exponential kinetics (PEK) model. This model has…

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Topics & keywords

Keywords
  • Sorption
  • Thermodynamics
  • Kinetics
  • Equilibrium moisture content
  • Gibbs free energy
  • Chemistry
  • Water vapor
  • Work (physics)
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