Authors: Yukie Saito Miyuki Ishii Masatoshi Sato
Publish Date: 2013/06/11
Volume: 47, Issue: 5, Pages: 1071-1081
Abstract
The properties of the binderless boards of moso bamboo depending on the harvest seasons and the parts of the height were reported and the optimum harvesting conditions investigated The binderless boards were prepared from the powdered bamboo harvested each month from June to May and the parts in height The hot water extract HWE lignin αcellulose and hemicelluloses contents were examined The board properties were evaluated with internal bonding IB water absorption WA and thickness swelling TS From the experiment the boards prepared between March and October had higher HWE content and higher IB and lower WA and TS than the ones prepared in other months The board from the top part showed lower IB and higher WA and TS than the bottom and the middle The boards prepared from the residue after extraction of HWE showed lower IB than the unextracted samples These results indicated that for producing board from bamboo the suitable harvesting season is when HWE contents are higher and that the suitable parts in height for harvesting are the bottom and the middle where lignin contents are not low
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