Development of Innovative Interface of Carbon Material having High Strength and Elongation by New Reactive Slide Ring Polymer

2022 Fiscal Year Final Research Report

• Project/Area Number: 20K05111
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Review Section: Basic Section 26030:Composite materials and interfaces-related
• Research Institution: Yamagata University
• Principal Investigator: Takahashi Tatsuhiro 山形大学, 大学院有機材料システム研究科, 教授 (60344818)
• Project Period (FY): 2020-04-01 – 2023-03-31
• Keywords: 炭素繊維 / 界面 / 環動高分子 / 反応性 / 水素結合

Outline of Final Research Achievements

Carbon fiber / resin composite, light weight material, has strong mechanical property by the interfacial design, however, it results in the small value about the elongation at break. Therefore, the interfacial design which satisfy both the high strength and the substantial elongation at break has been the critical problem which is expected to be solved. This research clarifies and demonstrates that the innovative interfacial design using originally modified slide ring polymer exhibited the carbon fiber / resin composite having both the high strength and the substantial elongation at break. The unique characteristics having both the high strength and the substantial elongation at break leads to the effective high impact absorption at the fracture and it is expected to apply to electric cars.

Free Research Field

炭素繊維複合材料

Academic Significance and Societal Importance of the Research Achievements

軽量な炭素繊維/樹脂複合体は、界面設計から高い強度を実現できるが伸びは小さくなる。その為に強度と伸びの両立をさせる界面設計が課題であった。本研究では、独自に変性した環動高分子を炭素繊維/樹脂界面に微量用いることで、強度と伸びを併せ持つ革新的な界面設計を実現できることを明らかにした。強度と伸びを併せ持つことで破壊時の衝撃吸収も効果的にでき、軽量化が必要な電気自動車等への社会実装が期待される。