Tough fiber-reinforced composite ionogels with crack resistance surpassing metals

IF 14.7 1区综合性期刊 Q1 MULTIDISCIPLINARY SCIENCES

Nature Communications Pub Date : 2025-04-29 DOI:10.1038/s41467-025-59396-9

Xiaolin Lyu, Kun Yu, Haoqi Zhang, Piaopiao Zhou, Zhihao Shen, Zhigang Zou

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Abstract

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.

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韧性纤维增强复合离子凝胶，抗裂性超过金属

离子导电材料因其良好的力学性能和电学性能而受到广泛关注。然而，它们的实际应用仍然受到有限的韧性和抗裂性的阻碍，这是由于耗能区大小的限制，从而影响了它们的可靠性和耐久性。本文通过在弹性离子凝胶中掺入高性能纤维来有效耗散能量，制备了具有抗裂性能的韧性纤维增强复合离子凝胶（frci）。frci具有良好的撕裂韧性、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之前报道的凝胶材料，甚至优于金属和合金。此外，FRCI的电阻对变形具有较高的敏感性。此外，它在固定人工骨时经过1万次弯曲循环后仍不会损坏，并且具有自感知抗冲击能力，在智能机器人和智能防护装备中具有很大的潜力。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Nature Communications Biological Science Disciplines-

CiteScore

24.90

自引率

2.40%

发文量

6928

审稿时长

3.7 months

期刊介绍： Nature Communications, an open-access journal, publishes high-quality research spanning all areas of the natural sciences. Papers featured in the journal showcase significant advances relevant to specialists in each respective field. With a 2-year impact factor of 16.6 (2022) and a median time of 8 days from submission to the first editorial decision, Nature Communications is committed to rapid dissemination of research findings. As a multidisciplinary journal, it welcomes contributions from biological, health, physical, chemical, Earth, social, mathematical, applied, and engineering sciences, aiming to highlight important breakthroughs within each domain.