Lyu Xiaolin, Yu Kun, Zhang Haoqi, Zhou Piaopiao, Shen Zhihao, Zou Zhigang
Key Laboratory of Advanced Materials Technologies, College of Materials Science and Engineering, Fuzhou University, Fuzhou, China.
Department of Critical Care Medicine, Fujian Medical University Union Hospital, Fuzhou, China.
Nat Commun. 2025 Apr 29;16(1):4005. doi: 10.1038/s41467-025-59396-9.
Ion-conductive materials have received much attention because of their good mechanical and electrical properties. However, their practical applications are still hampered by limited toughness and crack resistance, stemming from the restricted size of energy dissipation zones, which impacts their reliability and durability. Herein, tough fiber-reinforced composite ionogels (FRCIs) with crack resistance are fabricated by incorporating high-performance fibers into elastic ionogels to efficiently dissipate energy. The FRCIs exhibit good tearing toughness, high strength, high elastic modulus, and low bending modulus. The toughness and crack resistance of the FRCI far exceed that of previously reported gel materials, even outperforming metals and alloys. Furthermore, the electrical resistance of FRCI shows high sensitivity to deformation. Moreover, it remains undamaged after undergoing 10,000 bending cycles when fixing the artificial bone, and possesses self-sensing impact resistance, demonstrating great potential in intelligent robots and smart protective equipment.
离子导电材料因其良好的机械和电学性能而备受关注。然而，由于能量耗散区尺寸受限，其韧性和抗裂性有限，这阻碍了它们的实际应用，进而影响其可靠性和耐久性。在此，通过将高性能纤维掺入弹性离子凝胶中以有效耗散能量，制备出具有抗裂性的坚韧纤维增强复合离子凝胶（FRCIs）。FRCIs表现出良好的撕裂韧性、高强度、高弹性模量和低弯曲模量。FRCI的韧性和抗裂性远远超过先前报道的凝胶材料，甚至优于金属和合金。此外，FRCI的电阻对变形表现出高灵敏度。而且，在固定人工骨时，它在经历10000次弯曲循环后仍未受损，并具有自感应抗冲击性，在智能机器人和智能防护设备中显示出巨大潜力。
