The reporter learned from Zhejiang University on the 15th that for the first time, scientists in China discovered a new structure and mechanism for “interlayer folding clasps” in graphene films, and research can achieve collaborative improvement in material strength, toughness, and elasticity. The relevant results were published online in the international academic journal “Nature” at 23:00 Beijing time on the 14th. For a long time, improving the mechanical properties of graphene films has faced the bottleneck of “difficulty in balancing strength and toughness”. Traditional methods may improve performance by increasing the degree of regularity in the arrangement of graphene sheets or enhancing the bonding strength between sheets. The new research breaks through the traditional “flat stacking” design idea and constructs a folding clasp structured graphene film with interlocking layers. Professor Gao Chao of Zhejiang University, one of the authors of the paper, said that the research is expected to provide a material foundation for the development of lightweight aerospace structures and impact-resistant protective equipment.

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