2026-11-10 浙江大学（ZJU）
Schematic Diagram of the Force-Chain Conversion Mechanism in Pull-to-Push
＜関連情報＞
- https://www.zju.edu.cn/english/2026/1110/c75270a3225135/page.psp
- https://www.nature.com/articles/s41586-026-11109-y
折り畳み構造により、グラフェンフィルムの優れた弾性強度が実現する Clasping folds enable superior elastic strength of graphene films
Lidan Wang, Yangchao Liao, Jingjie Huang, Chenwei Shen, Lu Chen, Xing Li, Degong Ding, Mingtao Zhang, Li Peng, Kaiwen Li, Peng Li, Yingjun Liu, Zhen Xu, Kai Pang, Zhiping Xu & Chao Gao
Nature Published:14 October 2026
DOI:https://doi.org/10.1038/s41586-026-11109-y
Abstract
Two-dimensional graphene sheets show strong potential for use in fabrication of macroscopic films, as they have exceptional mechanical properties owing to their in-plane strength1,2,3,4,5,6. Improvements in the stacking order of flat two-dimensional sheets have led to corresponding improvements in the strength and toughness of such films7,8,9,10,11. In addition, modulation of the spatial conformation of individual units has enabled the development of benchmark materials with superior properties12,13; however, this has remained elusive in the case of two-dimensional sheets. Here we report a strategy for preparation of graphene films with a combination of high strength (2.9 GPa), toughness (84.5 MJ m−3) and elastic strain (5%). We attribute these performance gains to a fold-clasping lamellar structure achieved by modular assembly of surface-folded multilayer graphene oxide flakes. We identify a pull-to-push transition of force chain topology and propose a shear-lock stress transfer strategy in the fold-clasping lamellar graphene film that enables advances in mechanical properties. This work demonstrates the modular design of spatial conformation of two-dimensional flakes on a large scale and further improves the performance of macroscopic films for potential applications in lightweight structural components.
