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Producing high strenght and durable nanocomposites using soluble graphene

Research Project

Project/Area Number 19H02021
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 18010:Mechanics of materials and materials-related
Research InstitutionWaseda University (2020-2021)
Tokyo Institute of Technology (2019)

Principal Investigator

Arao Yoshihiko  早稲田大学, 理工学術院, 准教授 (40449335)

Co-Investigator(Kenkyū-buntansha) 久保内 昌敏  東京工業大学, 物質理工学院, 教授 (00186446)
川田 宏之  早稲田大学, 理工学術院, 教授 (20177702)
細井 厚志  早稲田大学, 理工学術院, 教授 (60424800)
Project Period (FY) 2019-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥17,550,000 (Direct Cost: ¥13,500,000、Indirect Cost: ¥4,050,000)
Fiscal Year 2021: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Fiscal Year 2020: ¥5,200,000 (Direct Cost: ¥4,000,000、Indirect Cost: ¥1,200,000)
Fiscal Year 2019: ¥10,400,000 (Direct Cost: ¥8,000,000、Indirect Cost: ¥2,400,000)
Keywordsグラフェン / 量産化 / メカノケミカル法 / 複合材料 / メカノケミカル反応 / ナノコンポジット / 繊維強化プラスチック / メカノケミカル / 強度 / 剥離分散 / 長期耐久性
Outline of Research at the Start

本研究は、新規に見出したメカノケミカル反応制御によって、溶媒に可溶な高アスペクト比グラフェンを創出し、分子レベルで分散している分散液を熱硬化性樹脂、熱可塑性樹脂に混合・複合化することで、高強度、高延性を両立し、かつ長期耐久性を有するナノコンポジットを作製する技術を確立することを目的とする。メカノケミカル反応の分子シミュレーションをすることで、グラフェンの新しい反応とその複合物を提案するとともに、その応用として、新規グラフェンを構造材料のアンチエイジング材料として応用する。

Outline of Final Research Achievements

With the aim of improving the mechanical properties of composite materials by nano reinforcement, we have constructed a process for mass production of graphene, which is one of the nanomaterials. Graphene is obtained by exfoliating graphite to form a thin layer. The liquid-phase-exfoliation method, which exfoliates graphite in a liquid to extract graphene, is the cheapest way to mass-produce graphene. In this study, we found that as a pretreatment method for the liquid phase exfoliation method, graphite is exfoliated and dispersed so that it dissolves in the liquid by mechanochemical reaction of salts and graphite via a ball mill. This made it possible to disperse graphene in a low boiling point solvent, and it was confirmed that the use of soluble graphene further improved the mechanical properties of the fiber reinforced plastic.

Academic Significance and Societal Importance of the Research Achievements

グラフェンは溶媒へ分散性が悪く、プラスチック材料へのナノ分散は極めて難しい。本研究では、グラファイトを粉砕する際に生じるラジカルに弱酸からなる塩を吸着させることで、極性溶媒にエッジ改質黒鉛を浸漬させた場合に溶けるように剥離分散することを見出した。用いる塩はクエン酸カリウムや酢酸カリウム等、汎用の塩でよく、プロセスはボールミルでよいため、低コストで改質グラフェンを量産化できる。可溶性グラファイトを利用した機能性コーティングなどの応用が期待できる。

Report

(4 results)
  • 2021 Annual Research Report   Final Research Report ( PDF )
  • 2020 Annual Research Report
  • 2019 Annual Research Report
  • Research Products

    (11 results)

All 2022 2021 2020 2019

All Journal Article (4 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 4 results,  Open Access: 2 results) Presentation (7 results) (of which Int'l Joint Research: 4 results,  Invited: 1 results)

  • [Journal Article] Exfoliation behavior of large anionic graphite flake in liquid produced by salt-assisted ball milling2020

    • Author(s)
      Yoshihiko Arao, Jonathon D. Tanks, Kojiro Aida, Masatoshi Kubouchi
    • Journal Title

      Processes

      Volume: 8 Issue: 1 Pages: 1-15

    • DOI

      10.3390/pr8010028

    • Related Report
      2020 Annual Research Report 2019 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Mechanochemical reaction using weak acid salts enables dispersion and exfoliation of nanomaterials in polar solvent2019

    • Author(s)
      Yoshihiko Arao, Jonathon D. Tanks, Kojirou Aida, Masatoshi Kubouchi
    • Journal Title

      Jounal of Materials Science

      Volume: 54 Issue: 6 Pages: 4546-4558

    • DOI

      10.1007/s10853-018-3156-9

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Direct exfoliation of layered materials in low-boiling point solvents using weak acid salts2019

    • Author(s)
      Yoshihiko Arao, Jonathon D. Tanks, Masatoshi Kubouchi, Akira Ito, Atsushi Hosoi, Hiroyuki Kawada
    • Journal Title

      Carbon

      Volume: 142 Pages: 261-268

    • DOI

      10.1016/j.carbon.2018.10.063

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Mass production of low-boiling point solvent- and water-soluble graphene by simple salt-assisted ball milling2019

    • Author(s)
      Arao Yoshihiko、Kuwahara Riichi、Ohno Kaoru、Tanks Jonathon、Aida Kojiro、Kubouchi Masatoshi、Takeda Shin-ichi
    • Journal Title

      Nanoscale Advances

      Volume: 1 Issue: 12 Pages: 4955-4964

    • DOI

      10.1039/c9na00463g

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] High-aspect-ratio boron nitride nanosheets via oxygen doping and exfoliation by microfluidization2022

    • Author(s)
      Betsu Ichikaku, Takeru Miyase, Yoshihiko Arao
    • Organizer
      The 6th Asian Symposium on Materials and Processing
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] ビーズミルを用いた高アスペクト比グラフェンの作製2022

    • Author(s)
      寺門勇吾、荒尾与史彦
    • Organizer
      日本材料科学会 2022年度学術講演大会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 加熱による窒化ホウ素の官能化と圧力ホモジナイザを使用した高アスペクト比窒化ホウ素ナノシートの作製について2022

    • Author(s)
      別一格、宮瀬崇琉、荒尾与史彦
    • Organizer
      日本材料科学会 2022年度学術講演大会
    • Related Report
      2021 Annual Research Report
  • [Presentation] Mass production of soluble graphite that shows ultra-high exfoliation efficiency in liquid2021

    • Author(s)
      Yoshihiko Arao
    • Organizer
      Graphene Korea 2021
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] ボールミル処理による可溶性グラフェンの生産におけるカチオンの影響2019

    • Author(s)
      荒尾与史彦、会田虎司郎、久保内昌敏
    • Organizer
      炭素学会
    • Related Report
      2019 Annual Research Report
  • [Presentation] Production of anionic graphite for ultra-high exfoliation in liquid2019

    • Author(s)
      Yoshihiko Arao, Jonathon Tanks, Kojiro Aida, Masatoshi Kubouchi
    • Organizer
      Okinawa Colloid 2019
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Mass production of soluble graphene by simple salt-assisted ball milling2019

    • Author(s)
      Yoshihiko Arao, Jonathon Tanks, Kojiro Aida, Masatoshi Kubouchi
    • Organizer
      18 the Asian Pacific Confederation of Chemical Engineering Congress 2019
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research

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Published: 2019-04-18   Modified: 2023-01-30  

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