形状記憶エポキシ樹脂とその複合材料:材料から応用まで

Shape Memory Epoxy Resin and Its Composites: From Materials to Applications.

抄録

形状記憶ポリマー（SMP）は、そのユニークな刺激応答性と可変剛性により歴史的に注目され、航空宇宙、民生産業などの分野で顕著な発展を遂げてきた。特に、エポキシ樹脂（EP）は、優れた機械的特性、耐疲労性、耐放射線性などから、大きな可能性を秘めています。ここでは、形状記憶エポキシ樹脂（SMEP）の分子設計とネットワーク構築に焦点を当て、性能・機能制御の機会を提供する。多重SMEP、双方向SMEP、優れた靭性、耐熱性など、多機能で高性能なSMEPを詳細に紹介する。最後に、航空宇宙、四次元印刷、自己修復におけるSMEPとその複合体の新たな応用を示す。これに基づいて、今後の課題を指摘し、SMEPがどのように性能と汎用性を統合し、技術開発のニーズに応えることができるかを示している。

Shape memory polymers (SMPs) have historically attracted attention for their unique stimulation-responsive and variable stiffness and have made notable progress in aerospace, civil industry, and other fields. In particular, epoxy resin (EP) has great potential due to its excellent mechanical properties, fatigue resistance, and radiation resistance. Herein, we focus on the molecular design and network construction of shape memory epoxy resins (SMEPs) to provide opportunities for performance and functional regulation. Multifunctional and high-performance SMEPs are introduced in detail, including multiple SMEPs, two-way SMEPs, outstanding toughness, and temperature resistance. Finally, emerging applications of SMEPs and their composites in aerospace, four-dimensional printing, and self-healing are demonstrated. Based on this, we point out the challenges ahead and how SMEPs can integrate performance and versatility to meet the needs of technological development.