▎ 摘　　要

The application fields of hydrogels are often severely limited by their weak mechanical performance. It is therefore highly demanded to develop an effective strategy to fabricate mechanically strong hydrogels. Herein, a kind of bioinspired ternary hydrogel consisting of graphene oxide (GO) nanosheets, xonotlite nanowires, and polyacrylamide (PAM) is constructed under the synergy of hydrogen bonding-induced GO/xonotlite network and the penetrated PAM chain network. Benefiting from the effective energy dissipation mechanism caused by double-network structural design and the strong hydrogen bonding interaction between two nanobuilding blocks, the gel exhibits a high toughness of 22 MJ m(-3) at an elongation of 2750%. Even notched with 1/4 size, it still holds a large extensibility of 2180% its initial length. These high-performance hydrogels could be of great interest in the fields of tissue engineering and biomedical areas.