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1990 Fiscal Year Final Research Report Summary

Development of High-Performance Panel Products Laminated Bamboo Material

Research Project

Project/Area Number 01560186
Research Category

Grant-in-Aid for General Scientific Research (C)

Allocation TypeSingle-year Grants
Research Field 林産学
Research InstitutionKyoto University

Principal Investigator

KAWAI Shuichi  Wood Res. Inst., Kyoto Univ. Assoc. Prof., 木材研究所, 助教授 (00135609)

Co-Investigator(Kenkyū-buntansha) NOMURA Takaya  Wood Res. Inst., Kyoto Univ. Instructor, 木材研究所, 助手 (60027167)
SASAKI Hikaru  Wood Res. Inst., Kyoto Univ. Prof., 木材研究所, 教授 (50027158)
Project Period (FY) 1989 – 1990
KeywordsBamboo Material / Laminated Product / Particleboard / Zephyr
Research Abstract

Various elements such as sliced veneer, zephyr, particle, and fiber made from bamboo were used as raw materials for developing high-performance panel products, and the physical and mechanical properties of these boards were examined. The results showed that bamboo sliced veneer or zephyr overlaid particleboards were high-performance panel products in relatively light-weight, and great mechanical strength and rigidity. However, sheer failure was often observed in the specimens when tested in bending. The fracture due to the bending moment or the sheer stress, therefore, depend on the ratio of fce/core thickness, board density, span of bending test, and so on.
The stress distribution in such sandwich panels was analyzed by the methods of computer simulation, using laminated beam theory and finite element method. The results of the simulation agreed well with the experimental results, and showed that the failure due to the bending moment or the sheer stress can be predicted by some parameters such as the ratio of face/core thickness, the ratio of board thickness to the span, and the ratio of face/core Young's moduli. It was predicted that under the appropriate conditions, the bamboo overlaid particleboards have Young's moduli similar to that of plywood and bending strength twice as great as that of plywood.
Physical and chemical pretreatments were examined in order to improve the bondability of outer and inner layers of bamboo. A method of sand-blasting showed an excellent effect on improving the bondability of bamboo. This method is rather simple and fast in treatment, and is possible in automatic control. It is applicable as well to treat a curved surface of bamboo. This method can therefore be expected to have a wide application as a pretreatment for improving the bondability of bamboo materials.

  • Research Products

    (4 results)

All Other

All Publications (4 results)

  • [Publications] 陳 載永,沢田 豊,川井 秀一,棚橋 光彦,佐々木 光: "竹材繊維板之研究" 林産工業. 8. 11-18 (1989)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 張 斉生,楊 萍,沢田 豊,川井 秀一,佐々木 光: "竹材接着性能の改善" 木材工業. 45. 16-20 (1990)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] T. Y. Chen, Y. Sawada, S. Kawai, M. Tanahashi, and H. Sasaki: "Studies on the Bamboo Fiberboard" Forest Products Industries. 8(4). 11-18 (1989)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Qisheng Zhang, Ping Yang, Yutaka Sawada, Shuichi Kawai, and Hikaru Sasaki: "Improving Glueability of Bamboo" Wood Industry. 45(1). 16-20 (1990)

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

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Published: 1993-08-12  

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