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Source of original question: Science and Technology Daily
Science and Technology Daily (Hong Hengfei, Ke Yineng, Wu Yalan, reporter Jiang Yun) Recently, the research group of Professor Gao Chao of the Department of Polymer Science and Engineering of Zhejiang University discovered for the first time that graphene oxide fibers prepared by wet spinning can achieve precision under the trigger of a solvent.
Gao Chao said: "The so-called precise reversibility means that the number, size, composition, structure and performance of the object can be restored to the original state after a fusion-split cycle.
The reporter saw that the research team "fused" 13,500 graphene oxide fibers into a black pillar, so that it could bear 680 times its own weight.
"When the fibers become soft in the solvent, they can be woven into a mesh of node fusion.
Gao Chao said that, compared with the existing research, the precise and reversible fusion of graphene oxide-based fibers completed by the research group this time—the splitting process is controllable, and the size of the material is large, which is for the unique phenomenon of the solid interface during the reversible assembly process.