Method for preparing tough integrated biomimetic layered graphene composite material

Abstract

The invention discloses a method for preparing a tough integrated biomimetic layered graphene composite material. Inorganic graphene oxide and organic dopamine are formed into a bionic building layered graphene composite material by an evaporation-induced self assembly method under the inspiration of a natural abalone shell organic-inorganic micro-nano multi-stage layered assembly structure and organic-inorganic crosslinking. The obtained imitated abalone shell layered composite material not only has high strength, but also has high toughness, the strength is twice of that of the natural abalone shell, the toughness is 1.5 times of that of the natural abalone shell, and meanwhile, the biomimetic layered graphene composite material also has excellent conductivity, and has potential application in the fields such as aviation and aerospace, tissue engineering, capacitor electrodes and the like.

Description

technical field

[0001] The invention relates to a preparation method of a strong and tough integrated bionic layered graphene composite material, which belongs to the field of nano bionic composite material preparation. Background technique

[0002] Graphene is a carbon atom with sp 2 The hybridized orbitals compose a one-atom-thick layered film of a hexagonal honeycomb lattice. Graphene and carbon nanotubes belong to the family of new carbon materials, and are the thinnest, hardest, and toughest materials among known materials. Graphene has unique physical and chemical properties. It is almost completely transparent and only absorbs 2.3% of light. At room temperature, its electron transmission speed is dozens of times faster than that of silicon, and its thermal conductivity is as high as 5300W / m K, which is higher than that of carbon nanotubes. and diamond, while the resistivity is only about 10 -6 Ω·cm, which is lower than copper or silver, and is currently the materia...

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