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Fundamental study on impregnation of wood -Penetration of obstacles for liquid permeation in wood by abrupt pressurization of surrounding liquid

Research Project

Project/Area Number 16H06895
Research Category

Grant-in-Aid for Research Activity Start-up

Allocation TypeSingle-year Grants
Research Field Wood science
Research InstitutionKyoto University

Principal Investigator

Soichi Tanaka  京都大学, 生存圏研究所, 研究員 (50730321)

Research Collaborator KANAYAMA Kozo  京都大学, 生存圏研究所, 教授 (60356798)
UMEMURA Kenji  京都大学, 生存圏研究所, 准教授 (70378909)
MIKI Tsunehisa  産業技術総合研究所, 主任研究員 (20415748)
Project Period (FY) 2016-08-26 – 2018-03-31
Project Status Completed (Fiscal Year 2017)
Budget Amount *help
¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
Fiscal Year 2017: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2016: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Keywords含浸 / 水分通導 / 閉鎖壁孔 / 水撃 / キャビテーション / 森林工学 / 農林水産物 / 材料加工・処理
Outline of Final Research Achievements

In impregnation of wood with chemical liquid, which is to control the troublesom properties of wood, there often exist some areas without being filled with the liquid, leading to the inadequate control. This is mainly caused by the obstacle that blocks the liquid flow, e.g., the aspirated pits. This study focuses on the water hammer to penetrate the obstacle as follows. If the liquid fills up the cell cavities between the wood surface and the tip of the liquid permeation in wood, or the obstacles, the abrupt increase in the liquid pressure from one to another on the wood surface is expected to cause the damping oscillation in the liquid pressure at the obstacles, leading to penetrate them. The purpose of this study is to promote the liquid permeation into wood by applying the water hammer. The water hammer in the fabricated test equipment did not affect the liquid permeation into wood. It was indicated from the theoretical analysis that the strength of water hammer was inadequate.

Report

(3 results)
  • 2017 Annual Research Report   Final Research Report ( PDF )
  • 2016 Annual Research Report
  • Research Products

    (12 results)

All 2017 2016 Other

All Journal Article (1 results) (of which Peer Reviewed: 1 results) Presentation (9 results) (of which Int'l Joint Research: 5 results) Remarks (2 results)

  • [Journal Article] Solute diffusion into cell walls in solution-impregnated wood under conditioning process IV: effect of temperature on solute diffusivity2017

    • Author(s)
      Tanaka Soichi、Seki Masako、Miki Tsunehisa、Umemura Kenji、Kanayama Kozo
    • Journal Title

      Journal of Wood Science

      Volume: 63 Issue: 6 Pages: 644-651

    • DOI

      10.1007/s10086-017-1658-8

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed
  • [Presentation] Microscopic control for chemical treatment in wood flow forming2017

    • Author(s)
      Tanaka Soichi
    • Organizer
      The 218th regular open seminar, Kyoto (Japan)
    • Related Report
      2017 Annual Research Report
  • [Presentation] ffect of water hummer phenomenon on liquid permeation in impregnation of wood2017

    • Author(s)
      Nakamura Kamii、 Tanaka Soichi、Umemura Kenji、 Kanayama Kozo
    • Organizer
      The 2nd Asia Research Node Symposium on Humanosphere Science
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Amount of chemicals in cell walls controlled by conditioning of solution-impregnated wood2017

    • Author(s)
      Tanaka Soichi
    • Organizer
      Asia Research Node Workshop on Ligno-cellulosic Materials
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Techniques for controlling amount of chemicals in cell walls in pre-treatment for wood flow forming2017

    • Author(s)
      Tanaka Soichi、Umemura Kenji、Kanayama Kozo
    • Organizer
      The 360th Symposium on Sustainable Humanosphere
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] ,Liquid permeation into wood applied by impact-elastic wave through surrounding liquid2017

    • Author(s)
      Nakamura Kamii、Tanaka Soichi、Umemura Kenji、Kanayama Kozo
    • Organizer
      The 360th Symposium on Sustainable Humanosphere
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Control of distribution of substance impregnated into wood for wood flow forming technique2017

    • Author(s)
      Tanaka Soichi、Umemura Kenji、Kanayama Kozo
    • Organizer
      The 12th joint seminar of China-Kore-Japan on wood quality and utilization of domestic species
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 木材の流動成形における高度制御型化学処理手法の開発2017

    • Author(s)
      田中聡一、梅村研二、金山公三
    • Organizer
      第367回生存圏シンポジウム ミッションシンポジウム、宇治
    • Related Report
      2017 Annual Research Report
  • [Presentation] 木材の流動成形における高度制御型化学処理手法の開発2016

    • Author(s)
      田中聡一
    • Organizer
      第335回生存圏シンポジウム ミッションシンポジウム
    • Related Report
      2016 Annual Research Report
  • [Presentation] 木材への液体含浸における加圧速度が注入量に及ぼす影響2016

    • Author(s)
      中村神衣
    • Organizer
      第67回日本木材学会大会(福岡)
    • Related Report
      2016 Annual Research Report
  • [Remarks] 木材の流動成形における高度制御型化学処理手法の開発

    • URL

      http://www.rish.kyoto-u.ac.jp/fellows/2017m03/

    • Related Report
      2017 Annual Research Report 2016 Annual Research Report
  • [Remarks] 第218回定例オープンセミナー資料

    • URL

      http://www.rish.kyoto-u.ac.jp/events/seminar-0218_tanaka/

    • Related Report
      2017 Annual Research Report 2016 Annual Research Report

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Published: 2016-09-02   Modified: 2019-03-29  

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