sorption of water vapour by chemically modified softwood: analysis using various sorption models

The sorption data for Corsican pine wood chemically modified with a homologous series of linear chain carboxylic acid anhydrides was analysed using various models, namely, BET, Dent, Le and Ly, Hailwood and Horrobin, Nelson, and Henderson. Hailwood and Horrobin resulted in the more appropriate model...

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Bibliographic Details
Published in:Wood science and technology 2005-04, Vol.39 (2), p.99-111
Main Authors: Papadopoulos, A.N, Avramidis, S, Elustondo, D
Format: Article
Language:English
Subjects:
Acidic oxides
Anhydrides
Applied sciences
Carboxylic acids
Cell walls
chemical modification
chemical treatment
chemically modified wood
Dry cells
Exact sciences and technology
Homology
Isotherms
Mathematical models
Molecular weight
Order parameters
Organic chemistry
Parameter modification
Polymer industry, paints, wood
softwood
Softwoods
Sorption
sorption isotherms
water
Water vapor
Wood
Wood-based materials
Wood. Paper. Non wovens
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Summary:The sorption data for Corsican pine wood chemically modified with a homologous series of linear chain carboxylic acid anhydrides was analysed using various models, namely, BET, Dent, Le and Ly, Hailwood and Horrobin, Nelson, and Henderson. Hailwood and Horrobin resulted in the more appropriate model to represent the equilibrium data of chemically modified wood. In the present study, the parameter representing the molecular weight of the dry cell wall in the Hailwood and Horrobin isotherm was perfectly correlated with the weight percentage gain of anhydride. A linear relation was proposed between these two parameters in order to fit all experimental isotherms (the results showed an r2=0.993).
ISSN:0043-7719
1432-5225
1432-5225
DOI:10.1007/s00226-004-0272-2