▎ 摘　　要

Graphene with a high-density ensemble of homogeneously dispersed topological disclinations is defined and theoretically described as a new two-dimensional material hereinafter called highly disclinated graphene (HDG). Within the suggested approach, positive and negative disclinations pentagon and heptagon rings in hexagonal lattice of graphene create the nanoscopically buckled structure containing local "hills" and "valleys". It is theoretically shown that the buckled structure is responsible for non-linear superelasticity of graphene-HDG nanocomposites and may cause other, potentially excellent mechanical characteristics of such nanocomposites and HDG.