Water sorption isotherms of Kraft lignin and its composites
Author
Summary, in English
The water sorption properties of Kraft lignin before and after treatment with the enzyme laccase, and its composites with branched polyethylenimine and chitosan, respectively, have been studied. The experimental sorption isotherms were obtained by dynamic vapour sorption (DVS) method. The data were analysed using the Brunauer–Emmett–Teller (BET) and Guggenheim–Anderson–de Boer (GAB) models. Monolayer capacity and surface area of the samples were determined by the BET model, showing an increase in these values for the composites. Application of the GAB model over the whole range of humidities (0–95%) gave a perfect correlation between experimental and calculated sorption isotherms using the nonlinear least squares fitting (NLSF).
Department/s
Publishing year
2012
Language
English
Pages
1817-1821
Publication/Series
Carbohydrate Polymers
Volume
87
Issue
2
Document type
Journal article
Publisher
Elsevier
Topic
- Industrial Biotechnology
- Materials Engineering
Status
Published
ISBN/ISSN/Other
- ISSN: 0144-8617