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2001 Fiscal Year Final Research Report Summary

Studies on the developing possibility of wood and wood-based materials as an intelligent material

Research Project

Project/Area Number 11306012
Research Category

Grant-in-Aid for Scientific Research (A)

Allocation TypeSingle-year Grants
Section一般
Research Field 林産学
Research InstitutionKYUSHU UNIVERSITY

Principal Investigator

ODA Kazuyuki  Faculty of Agriculture, Kyushu University Prof., 農学研究院, 教授 (10045130)

Co-Investigator(Kenkyū-buntansha) MORITA Mitsuhiro  Faculty of Agriculture, Kyushu University Ass. Prof., 大学院・農学研究院, 助教授 (30038301)
OKUMA Motoaki  Miyazaki Pref., Wood utilization Research Center, Director, 所長(研究職)
MATSUMURA Jyunji  Faculty of Agriculture, Kyushu University Ass. Prof., 大学院・農学研究院, 助教授 (70243946)
Project Period (FY) 1999 – 2001
KeywordsWood / Intelligent material / Shape memory / Adsorption / Regulation of humidity / Deflection control / Deterioration
Research Abstract

Wood and wood-based materials have unique characteristics as a material against humidity, moisture, loading force, fungi etc. To proceed the effective uses of these characteristics and to apply the characteristics to actual manufacture products or structures, following studies were done. 1) Enlargement of ability in adsorption and desorption of moisture and its application. 2) Occurrence of crook in 2 ply-laminated wood with the change of moisture content and its application. 3) Control of deflection due to bending force and its application.
Wood specimrns having various surface areas were made by machining and response rate of adsorption and desorption with the change of relative humidity were compared. Response rate was faster in the specimens having large surface area than in the specimens having small surface area. Small chambers having wooden wall were made and temperature and relative humidity were measured in the inside and outside of the chamber. There was no difference in the t … More emperature between the inside and outside of the chamber. Relative humidity varied widely at the outside of the chamber, but was stable in the inside. There were no significant differences between the chamber made from wood of large surface area and that from wood of small surface area.
Two laminars(hard board and plywood, hard board and plastic, MDF and plywood, MDF and plastic) were bonded by using adhesive. Crook value and moisture content in 2 ply-laminated wood were measured with the change of relative humidity. Crook value measured expementaly was smaller than that calculated from Young's modulus and percentage of shrinkage. As a result, it was presumed that there is difference between percentage of shrinkage and that of swelling in wood-based materials. Application of crook of 2 ply-laminated wood to louver that open and close automatically with the change of surrounding humidity conditions.
Wood-based materials in which even if bending force increases, deflection amount hardly increases, were manufactured by way of experiment. Less

  • Research Products

    (8 results)

All Other

All Publications (8 results)

  • [Publications] 松永浩史, 松村順司: "スギCCA処理材のCr, Cu, As元素分布"日本林学会九州支部研究論文集. 53. 171-174 (2000)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 松永浩史, 松村順司, 小田一幸: "スギのCuAz拡散処理材における銅元素の分布"日本林学会九州支部研究論文集. 54. 197-200 (2001)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 三河尻尚人, 松村順司, 大熊幹章: "LV-SEMを使った脱湿に伴う細胞形状変化の観察と異方性の検討"木材学会誌. 47(4). 289-294 (2001)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 武智洋平, 松永浩史, 松村順司: "ACQ処理されたカラマツ心材部における浸潤判定"九州森林研究. 55(印刷中). (2002)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] H. Matsumaga and J. Matsumura: "Distribution of Cr, Cu and As elements in sugi (Cryptomeria japonica) sapwood with CCA treatment"Kyushu Journal of Forest Research. 53. 171-174 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] H. Matsumaga, J. Matsumura and K. Oda: "Distribution of Cu element in sugi (Cryptomeria japonica) wood with CuAz diffusion treatment"Kyushu Journal of Forest Research. 54. 197-200 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] N. Mikajiri, J. Matsumura, M. Okuma and K. Oda: "Observations by LV-SEM of shrinkage and anisotropy of tracheid cells with desorption"Mokuzai Gakkaishi. 47(4). 289-294 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Y. Takechi, H. Matsumaga and J. Matsumura: "A penetration judgement in Larix heartwood treated ACQ preservative"Kyushu Journal of Forest Research. 55 (in press). (2002)

    • Description
      「研究成果報告書概要(欧文)」より

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Published: 2003-09-17  

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