Strength analysis of single cellulose nanofibers

• Project/Area Number: 15K14765
• Research Category: Grant-in-Aid for Challenging Exploratory Research
• Allocation Type: Multi-year Fund
• Research Field: Wood science
• Research Institution: The University of Tokyo
• Principal Investigator: Saito Tsuguyuki 東京大学, 大学院農学生命科学研究科(農学部), 准教授 (90533993)
• Project Period (FY): 2015-04-01 – 2017-03-31
• Project Status: Completed (Fiscal Year 2016)
• Budget Amount: ¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000); Fiscal Year 2016: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000); Fiscal Year 2015: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
• Keywords: セルロース / 強度 / キチン / ナノファイバー / セルロースナノファイバー

Outline of Final Research Achievements

The tensile strength of single cellulose nanofibers was was estimated based on a model for the sonication-induced fragmentation of filamentous nanostructures. The mean strength of wood-derived cellulose nanofibers was about 3 GPa. The highly crystalline, thick tunicate cellulose nanofibers exhibited higher mean strength of 6 GPa and the maximum strength of 10 GPa. The strength values estimated here are comparable with those of commercially available multi-walled carbon nanotubes.

Research Products

• [Journal Article] セルロースナノファイバー (2017)
  • Author(s): 齋藤継之
  • Journal Title: 応用物理 Volume: 86 Pages: 144-147
• [Journal Article] Viscoelastic properties of core-shell structured, hemicellulose-rich nanofibrillated cellulose in dispersions and wet film states (2016)
  • Author(s): Reina Tanaka, Tsuguyuki Saito, Tuomas Hanninen, Yuko Ono, Minna Hakalahti, Tekla Tammelin, Akira Isogai.
  • Journal Title: Biomacromolecules Volume: 17 Issue: 6 Pages: 2104-2111
  • DOI: 10.1021/acs.biomac.6b00316
  • Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
• [Journal Article] Influence of Flexibility and Dimensions of Nanocelluloses on the Flow Properties of Their Aqueous Dispersions (2015)
  • Author(s): Tanaka, R.; Saito, T.; Hondo, H.; Isogai, A.
  • Journal Title: Biomacromolecules Volume: 16 Issue: 7 Pages: 2127-2131
  • DOI: 10.1021/acs.biomac.5b00539
  • Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
• [Presentation] Cellulose Nanofiber: Fundamentals and Potential of the Emerging Bio-based Material (2016)
  • Author(s): Saito, T.
  • Organizer: The Pan Pacific Conference 2016
  • Place of Presentation: Seoul（Korea）
  • Year and Date: 2016-10-27
  • Int'l Joint Research / Invited
• [Presentation] Cellulose Nanofiber: Structures and Fundamental Properties (2016)
  • Author(s): Saito, T.
  • Organizer: Nordic Polymer Days 2016
  • Place of Presentation: Helsinki（Finland）
  • Year and Date: 2016-05-31
  • Int'l Joint Research / Invited
• [Presentation] セルロースナノファイバーの基礎と応用事例 (2016)
  • Author(s): 齋藤継之
  • Organizer: ふじのくにＣＮＦフォーラム第１回技術講演会
  • Place of Presentation: 静岡県富士市産業交流展示場
  • Year and Date: 2016-01-12
• [Presentation] TEMPO-Oxidized Cellulose Nanofiber: Fundamentals and Applications (2015)
  • Author(s): Tsuguyuki Saito
  • Organizer: 2015 MRS Fall Meeting & Exhibit
  • Place of Presentation: Hynes Convention Center, Massachusetts, US
  • Year and Date: 2015-12-02
  • Int'l Joint Research / Invited
• [Presentation] セルロースナノファイバーが拓く未来 ‐木材活用による高度部材イノベーション‐ (2015)
  • Author(s): 齋藤継之
  • Organizer: みえCNF協議会キックオフセミナー（みえリーディング産業展2015）
  • Place of Presentation: 三重県四日市ドーム
  • Year and Date: 2015-11-20
  • Invited
• [Presentation] セルロースナノファイバーの構造と基礎特性 (2015)
  • Author(s): 齋藤継之
  • Organizer: 第46回ナノ構造ポリマー研究会
  • Place of Presentation: 東京都味覚糖UHA館
  • Year and Date: 2015-11-13
  • Invited
• [Presentation] 天然セルロースのTEMPO触媒酸化 (2015)
  • Author(s): 齋藤継之
  • Organizer: ナノセルロースフォーラム第5回技術セミナー
  • Place of Presentation: 東京都木材会館
  • Year and Date: 2015-07-07
  • Invited
• [Presentation] セルロースナノファイバーの基礎特性と応用展開 (2015)
  • Author(s): 齋藤継之
  • Organizer: ナノファイバー学会第６回年次大会
  • Place of Presentation: 東京大学弥生講堂一条ホール
  • Year and Date: 2015-07-06
  • Invited
• [Book] 機能紙最前線～次世代機能紙とその垂直連携に向けて～ (2017)
  • Author(s): 齋藤継之（分担執筆）；機能紙研究会編
  • Total Pages: 350
  • Publisher: （株）加工技術研究会
• [Book] 図解よくわかるナノセルロース (2015)
  • Author(s): 齋藤継之（分担執筆）; ナノセルロースフォーラム編
  • Total Pages: 208
  • Publisher: 日刊工業新聞社