石墨烯的功能化及其在聚合物改性中的应用研究

Functional Graphene and Its Application in Polymer Modification

  • 摘要: 石墨烯作为一种新型二维平面纳米材料,其特殊的单原子层结构赋予了它许多新奇的物理性质,如优异的力学性能、良好的导电和导热性能、杰出的摩擦学性能等,在航空、航天等多个领域显示出良好的应用前景。本文针对石墨烯在聚合物中的分散性问题,对石墨烯表面修饰的研究进展进行了综述,包括π键和离子键非共价功能化以及有机小分子、线型聚合物和超支化聚合物共价功能化等,并总结了石墨烯对聚合物导电性能、热学性能、机械性能以及摩擦学性能的影响,指出了其今后的研究方向及发展前景。

     

    Abstract: Graphene is a kind of novel two-dimensional nanocomposite and the special single atomic layer structure provides it distinctive physical properties, such as excellent mechanical properties, good electrical and thermal conductivity properties and outstanding tribological property, so it may have good application prospects in aviation, aerospace and other fields.In this pape, as for the problem of graphene's dispersion in polymers, the progress of the graphene surface modification is reviewed, including non-covalent functionalization of π bond and electrovalent bond and covalent functionalization of small organic molecules, linear polymers and hyperbranched polymers, as well as graphene's effects on modification of polymer in the aspects of conductive properties, thermal properties, mechanical properties and tribological properties.The further development of graphene modification is also suggested.

     

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