Strength improvement in advanced composite material by adding nanofillers

• Project/Area Number: 24760089
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Materials/Mechanics of materials
• Research Institution: Doshisha University
• Principal Investigator: YOSHIHIKO Arao 同志社大学, 理工学部, 助教 (40449335)
• Project Period (FY): 2012-04-01 – 2015-03-31
• Project Status: Completed (Fiscal Year 2014)
• Budget Amount: ¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000); Fiscal Year 2014: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000); Fiscal Year 2013: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000); Fiscal Year 2012: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
• Keywords: 複合材料 / ナノコンポジット / 高強度化 / コーティング / ナノ分散 / 難燃化 / ナノ粒子 / 混錬 / 溶融混練 / 高強度 / 高機能化

Outline of Final Research Achievements

In this study, in order to improve mechanical and functional properties of fiber-reinforced plastics (FRP), nano-fillers were hybridized in the traditional composite materials. We’ve conducted two method: direct melt-compounding method for thermoplastics based materials and solution coating method. The strength of carbon/polypropylene composites was further increased by adding nanofiller, because addition of nanofiller modify the interfacial strength between fiber and matrix. The coating of nano-dispersed slurry could improve barrier properties of composite and acted as fire-protective coating.

Research Products

• [Journal Article] Strength improvement in injection-molded jute-fiber-reinforced polylactide green-composites (2015)
  • Author(s): Yoshihiko Arao, Takayasu Fujiura, Satoshi Itani, Tatsuya Tanaka
  • Journal Title: Composite Part B Volume: 68 Pages: 200-206
  • Peer Reviewed
• [Journal Article] Improvement on fire retardancy of wood flour/polypropylene composites using various fire retardants (2014)
  • Author(s): Yoshihiko Arao, Sakae Nakamura, Yuta Tomita, Kyohei Takakuwa, Toshikazu Umemura, Tatsuya Tanaka
  • Journal Title: Polymer Degradation and Stability Volume: 100 Pages: 79-85
  • Peer Reviewed
• [Journal Article] 細管高速流動を利用したナノクレイの剥離分散に関する研究 (2013)
  • Author(s): 荒尾与史彦，大利知之，田中達也
  • Journal Title: 日本機械学会誌 A編 Volume: 79 Pages: 1239-1251
  • NAID: 130003374714
  • Peer Reviewed
• [Journal Article] 熱残留応力およびフィジカルエージングによるCFRP擬似等方性積層板の経時寸法変化 (2013)
  • Author(s): 丹羽智之，荒尾与史彦，川田宏之
  • Journal Title: 日本機械学会誌 A編 Volume: 79 Pages: 950-960
  • Peer Reviewed
• [Journal Article] Increasing the interfacial strength in carbon fiber/polypropylene composites by growing CNTs on the fibers (2013)
  • Author(s): Syuzi Yumitori, Yoshihiko Arao, Tatsuya Tanaka, Kazuto Tanaka, Tsutao Katayama
  • Journal Title: WIT Transactions on the Built Environment Volume: * Pages: 275-284
  • Peer Reviewed
• [Journal Article] Mechanical properties of injection-molded carbon fiber/polypropylene composites hybridized with nanofillers (2013)
  • Author(s): Yoshihiko Arao, Syuji Yumitori, Hirofumi Suzuki, Tatsuya Tanaka, Kazuto Tanaka, Tsutao Katayama
  • Journal Title: Composite Part A Volume: 55 Pages: 19-26
  • Peer Reviewed
• [Journal Article] Effect of screw designs on fiber breakage and dispersion in injection-molded long glass-fiber-reinforced polypropylene (2013)
  • Author(s): Akira Inoue, Kazuya Morita, Tatsuya Tanaka, Yoshihiko Arao, Yasutake Sawada
  • Journal Title: Journal of Composite Materials Volume: * Issue: 1 Pages: 0-13
  • DOI: 10.1177/0021998313514872
  • Peer Reviewed
• [Presentation] Effect of processing conditions on mechanical and barrier properties of PLA/Clay nanocomposites (2014)
  • Author(s): Yoji Nakade, Yoshihiko Arao, Tatsuya Tanaka
  • Organizer: 16TH European Conference on Composite Material
  • Place of Presentation: スペイン
  • Year and Date: 2014-06-22 – 2014-06-26
• [Presentation] Effect of processing conditions on mechanical and barrier properties of PLA/Clay nanocomposites (2014)
  • Author(s): Yoji NAKADE, Tatsuya TANAKA, Yoshihiko ARAO
  • Organizer: 16th European Conference on Conposite Materials
  • Place of Presentation: スペイン
• [Presentation] Increasing the interfacial strength in carbon fiber/polypropylene composites by growing CNTs on the fibers (2013)
  • Author(s): S. Yumitori, Y.Arao, T. Tanaka, K. Naito, K. Tanaka, T. Katayama
  • Organizer: 16th International Conference on Computational method and Experimental Measurements
  • Place of Presentation: スペイン
• [Presentation] Effect of screw designs on fiber breakage and dispersion of GFRTP in injection molding plasticization. (2013)
  • Author(s): S. Shimokusuzono, A. Inoue, M. Nomoto, Y.Tomita, T. Tanaka, Y. Arao
  • Organizer: 29th International Conference of the Polymer Processing Society
  • Place of Presentation: アメリカ
• [Presentation] Hybrid effects on mechanical properties on injection molded nano-hybrid composites (2012)
  • Author(s): Yoshihiko Arao, Hirofumi Suzuki, Shoji Yumitori, Tatsuya Tanaka, Kazuto Tanaka, Tsutao Katayama
  • Organizer: 15th European Conference on Composite Materials
  • Place of Presentation: イタリア
• [Presentation] Effect of flow in tube on morphology and mechanical properties of PP/clay nanocomposite (2012)
  • Author(s): Tomoyuki Otoshi, Tatsuya Tanaka, Yoshihiko Arao
  • Organizer: 2012 International Conference on Electronic and Materials
  • Place of Presentation: 中国
• [Presentation] 二軸押出機によるカーボンナノチューブの分散混練
  • Author(s): 荒木邦紘，加藤龍典，田中達也，荒尾与史彦
  • Organizer: プラスチック成型加工学会 第23回年次大会
  • Place of Presentation: 東京
• [Presentation] 導電性CF/PP複合材の最適混練プロセス
  • Author(s): 荒尾与史彦，加藤龍典，田中達也
  • Organizer: 第4回自動車用途コンポジットシンポジウム
  • Place of Presentation: 京都