Luo Lan, Zhang Fenghua, Leng Jinsong
Centre for Composite Materials and Structures, Harbin Institute of Technology (HIT), Harbin 150080, China.
Research (Wash D C). 2022 Mar 16;2022:9767830. doi: 10.34133/2022/9767830. eCollection 2022.
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.
形状记忆聚合物（SMPs）因其独特的刺激响应性和可变刚度，长期以来备受关注，并在航空航天、民用工业等领域取得了显著进展。特别是环氧树脂（EP），因其优异的机械性能、抗疲劳性和抗辐射性而具有巨大潜力。在此，我们专注于形状记忆环氧树脂（SMEPs）的分子设计和网络构建，为性能和功能调控提供机会。详细介绍了多功能和高性能的SMEPs，包括多重SMEPs、双向SMEPs、出色的韧性和耐高温性。最后，展示了SMEPs及其复合材料在航空航天、四维打印和自修复方面的新兴应用。基于此，我们指出了未来的挑战以及SMEPs如何整合性能和多功能性以满足技术发展的需求。
