Relation between moisture sorption and hygroexpansion of sitka spruce during adsorption processes

Erni Ma, Tetsuya Nakao, Guangjie Zhao, Hiroshi Ohata, Susumu Kawamura

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

Moisture adsorption processes carried out in successive steps at three increasing levels of RH (45, 75, 85%) at 20°C for Sitka spruce (Picea sitchensis Carr.) were studied. Moisture content and dimensional changes in radial and tangential directions of the specimens were measured and it was found that moisture changes were slower than dimensional. The modeling on this moisture-dimensional relationship, based on the idea of dividing sorbed water into two components having different effects on dimensional changes, not only shows a good agreement with experimental results, but also presents a new understanding of the mechanism of hygroexpansion of wood.

Original languageEnglish
Pages (from-to)304-309
Number of pages6
JournalWood and Fiber Science
Volume42
Issue number3
Publication statusPublished - Jul 1 2010

Fingerprint

Picea sitchensis
sorption
Sorption
adsorption
Moisture
moisture
Adsorption
water content
moisture content
Wood
water
modeling
Water

All Science Journal Classification (ASJC) codes

  • Forestry
  • Materials Science(all)

Cite this

Relation between moisture sorption and hygroexpansion of sitka spruce during adsorption processes. / Ma, Erni; Nakao, Tetsuya; Zhao, Guangjie; Ohata, Hiroshi; Kawamura, Susumu.

In: Wood and Fiber Science, Vol. 42, No. 3, 01.07.2010, p. 304-309.

Research output: Contribution to journalArticle

Ma, Erni ; Nakao, Tetsuya ; Zhao, Guangjie ; Ohata, Hiroshi ; Kawamura, Susumu. / Relation between moisture sorption and hygroexpansion of sitka spruce during adsorption processes. In: Wood and Fiber Science. 2010 ; Vol. 42, No. 3. pp. 304-309.
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