Exploration of wood deformability by utilizing organic liquid

2019 Fiscal Year Final Research Report

• Project/Area Number: 17K15300
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Wood science
• Research Institution: Forest Research and Management Organization
• Principal Investigator: Miyoshi Yuka 国立研究開発法人森林研究・整備機構, 森林総合研究所, 研究員 (50781598)
• Project Period (FY): 2017-04-01 – 2020-03-31
• Keywords: 変形 / 有機液体 / アセチル化 / 脱リグニン処理 / 脱ヘミセルロース処理 / 熱軟化特性 / クリープ

Outline of Final Research Achievements

Mechanical properties of the wood samples with various treatment which were swollen by organic liquid or mixture of water and organic liquid were examined, to explore the factors contribute to the increase of deformability and the mechanism of the deformation of wood. Mechanical properties of wood were changed due to the affinity between the wood constituents and the liquid. In particular, the creep deformation was significantly increased in the sample swollen by mixture of water and acetone, and/or the sample with the hemicellulose removal treatment.

Free Research Field

木材物理

Academic Significance and Societal Importance of the Research Achievements

本研究では、木材構成成分の改質や除去、また膨潤液体の種類や混合比を変化させることで、木材の力学的性質を自在に制御できることを明らかにした。これらの結果は、低エネルギーでこれまで以上に木材を変形できる可能性を示すものであり、従来の概念にとらわれない木材変形加工技術の創成に寄与できるものである。