NDLI: Phase transformations of wood cell wall water

Content Provider	Springer Nature Link
Author	Kärenlampi, Petri P. Tynjälä, Pekka Ström, Pasi
Copyright Year	2005
Abstract	The amount of apparently nonfreezing water per dry mass unit significantly differs between earlywood and latewood, and drying changes the nonfreezing water content of earlywood cell walls in a time-dependent manner. However, the equilibrium moisture content of spruce wood is not affected by drying and rewetting. The results indicate that different mechanisms govern these two types of phase transformations of cell wall water. The nonfreezing water content, as determined using differential scanning calorimetry, appears to be a nonequilibrium property. It is hypothesized that the measured changes in nonfreezing water content mostly reflect changes in the porous cell wall structure, on a scale well above the molecular scale, rather than the abundance of chemical adsorption sites.
Starting Page	118
Ending Page	123
Page Count	6
File Format	PDF
ISSN	14350211
Journal	Journal of Wood Science
Volume Number	51
Issue Number	2
e-ISSN	16114663
Language	English
Publisher	Springer-Verlag
Publisher Date	2005-04-25
Publisher Place	Tokyo
Access Restriction	Subscribed
Subject Keyword	Differential scanning calorimetry Nonfreezing water Water sorption Drying Rewetting Characterization and Evaluation Materials Ceramics, Glass, Composites, Natural Methods Wood Science & Technology
Content Type	Text
Resource Type	Article
Subject	Biomaterials Forestry

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Phase transformations of wood cell wall water