Koki Matsumoto

Affiliation and department：
Job title： Associate Professor

Research field (3)： Machine materials and mechanics , Polymer chemistry , Manufacturing and production engineering

Research keywords (4)： Polymer Rheology , Polymer Processing , Composite Materials , 複合材料,プラスチック成形加工,高分子レオロジー

Research theme for competitive and other funds (6)：

2023 - 2025 射出成形における導電性のin-situ計測を可能とするセンサー試作とナノカーボンの導電性発現メカニズムの解明
2023 - 2024 プラスチックとの複合材における熱分解反応の競合に関する研究
2023 - 2024 伸長流動下におけるナノ粒子の分散メカニズムの解明補助事業
2021 - 2024 Elucidation of mechanism for improving joining strength and durability of hybrid CFRTP by addition of nanofibers
2022 - 2023 ナノ繊維添加による天然繊維と熱可塑性樹脂間の界面強度強化メカニズムの解明

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Papers (21)：

Koki Matsumoto, Kenichi Takemura, Ryuta Kitamura, Hideaki Katogi, Tatsuya Tanaka, Hitoshi Takagi. Cellulose nanofiber-introduced continuous-ramie yarn-reinforced polylactic acid filament for 3D printing: Novel fabrication process and mechanical properties. Composites Part A: Applied Science and Manufacturing. 2024. 176. 107836-107836
Birei Tanaka, Ayaka Hasegawa, Tatsuya Tanaka, Masahiro Sasada, Koki Matsumoto. An influence of nanofiller size on the joining strength of injection overmolded component by insert of nanofiller-filled thermoplastics films at interface. AIP Conference Proceedings. 2023. 2884. 1
KOKI MATSUMOTO, MASAYA ITABASHI, AKIRA KAWASUMI, KENICHI TAKEMURA, TATSUYA TANAKA. SELECTIVE REINFORCEMENT OF JOINING INTERFACE USING NANOFIBERS IN SINGLE-LAP JOINTS OF THERMOPLASTIC COMPOSITES FABRICATED BY THE INJECTION OVERMOLDING PROCESS: CREEP DEFORMATION BEHAVIOUR. WIT Transactions on The Built Environment. 2022. 209. 3-14
Koki Matsumoto, Tatsuya Tanaka. A modified blister mixing element for generating extensional flow in a twin-screw extruder: Process characterization and dispersion state of carbon nanotubes in cyclo-olefin polymer. Polymer Engineering & Science. 2022. 62. 4. 1223-1238
Koki Matsumoto, Kenichi Takemura. The influence of the addition position of cellulose nanofibers on the crystalline and mechanical properties of carbon fiber-reinforced polypropylene composites. Composite Interfaces. 2021. 29. 9. 1053-1070

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MISC (18)：

TANAKA Tatsuya, MATSUMOTO Koki. Compounding and Dispersion Technology for Nanocomposites and Polymer Blends by Using Extensional Flow in Twin-Screw Extruder. Japanese Journal of Multiphase Flow. 2024. 38. 2. 114-121
Koki Matsumoto, Kenichi Takemura, Seiji Mitsubayashi, Hideaki Katogi, Hitoshi Takagi. Elucidation of the Interfacial Enhancement Mechanism of the Introducing the Nanofibers at the Interface of Natural Fiber-Reinforced Thermoplastic Composites. Technology Reports, Kanagawa University. 2024. 7. 6-9
Seiji Mitsubayashi, Kenichi Takemura, Koki Matsumoto, Hideaki Katogi, Hitoshi TAKAGI, Toru Fujii. Effect of Continuous Alkaline Treatment under Tensile Stress on Mechanical Properties of Natural Fiber Reinforced PLA Composites. Technology Reports, Kanagawa University. 2024. 7. 36-37
Koki Matsumoto. New Possibility of Nanofibers in Molding and Welding Technology of Lightweight Structure Using Carbon-Fiber-Reinforced Thermoplastics. PLASTOS. 2023. 6. 64. 192-196
Shin-ichi Kihara, Yoshiyuki Suetsugu, Koki Matsumoto, Masataka Sugimoto. 複合材料. Seikei-Kakou. 2023. 35. 5. 155-155

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Patents (7)：

Multi-screw kneader and method for producing nano-composite using said multi-screw kneader, and disk-shaped segment used for said kneader and said method
複合フィラメントの製造方法及び複合フィラメント
DISK-SHAPED SEGMENT, AND RELATED METHOD FOR PRODUCING NANO-COMPOSITE
多轴混炼机和使用了该多轴混炼机的纳米复合材料的制造方法以及用于它们的盘形件
成形品およびその製造方法

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Books (2)：

Lectures and oral presentations (70)：

連続ラミー糸表面のセルロースナノファイバの添加率がポリ乳酸の結晶化に及ぼす影響
(プラスチック成形加工学会第32回秋季大会 2024)
一軸伸長流動下におけるひずみ速度およびヘンキ-ひずみが成形品内のカーボンナノチューブの組織に及ぼす影響
(プラスチック成形加工学会第32回秋季大会 2024)
連続天然繊維強化PLAフィラメントの繊維含水率が3Dプリンタ成形品の機械的特性に及ぼす影響
(プラスチック成形加工学会第35回年次大会 2024)
Effect of temperature conditions during cooling on crystallization of cellulose nanofiber-introduced continuous natural yarn-reinforced composites
(2024)
射出成形における伸長流動場がCNT/PP複合材料の機械的特性に与える影響
(第15回日本複合材料会議 2024)

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Education (4)：

2015 - 2018 Doshisha University Graduate School of Science and Engineering Department of Mechanical Engineering
2016 - 2016 RWTH Aachen University Institute for Plastic Processing
2013 - 2015 Doshisha University Graduate School of Science and Engineering Department of Mechanical Engineering
2009 - 2013 Doshisha University Faculty of Science and Engineering Department of Mechanical and Systems Engineering

Professional career (1)：

Work history (9)：

2024/04 - 現在 Kyushu Institute of Technology Faculty of Engineering Department of Mechanical and Control Engineering Associate Professor
2022/10 - 現在 Kanagawa University, Research Institute for Engineering Invited Researcher
2019/04 - 現在 Researcher
2022/04 - 2024/03 Fukuoka University Faculty of Engineering Department of Mechanical Engineering Assistant Professor
2019/04 - 2022/03 Kanagawa University Faculty of Engineering Department of Mechanical Engineering Assistant Professor

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Committee career (7)：

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Awards (3)：

2023/06 - The Japan Society of Polymer Processing Young Fellow Award for Encouragement of Research; The Japan Society of Polymer Processing
2021/07 - 日本材料学会令和2年度複合材料部門委員会奨励賞
2014/06 - プラスチック成形加工学会ポスター賞ブリスタディスクの機械因子によるナノコンポジットの分散性に及ぼす影響

Association Membership(s) (5)：

精密工学会 , POLYMER PROCESSING SOCIETY , The Society of Materials Science, Japan , Japan Society of Polymer Processing , Society of Plastics Engineers

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