Impregnation of radiata pine wood by vacuum treatment II: Effect of pre-steaming on wood structure and resin content

研究成果: Contribution to journalArticle査読

19 被引用数 (Scopus)

抄録

Radiata pine sapwood and heartwood were dried using high-temperature, conventional-temperature, and air drying schedules with and without pre-steaming. They were then impregnated by vacuum treatment with double-distilled water, toluidine blue, and fluorescein dye. For sapwood, there were only minor differences in uptake between drying methods and when pre-steaming was used. Using microscopy, the primary flow pathways in sapwood were found to be the resin canal network and ray parenchyma cells, which provided conduction without large resistance. In heartwood, uptake was strongly influenced by pre-steaming the green lumber. After pre-steaming heart-wood, there was an increase in uptake from all surfaces but especially from the radial surfaces. Lower extractive contents, disruption of epithelial and ray parenchyma cells, and alteration of the condition of bordered pits were also associated with pre-steaming. It was therefore possible to classify flow paths in radiata pine heartwood five ways, according to uptake values and wood anatomical features.

本文言語英語
ページ(範囲)456-462
ページ数7
ジャーナルJournal of Wood Science
45
6
DOI
出版ステータス出版済み - 1 1 1999

All Science Journal Classification (ASJC) codes

  • Biomaterials

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