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发明公开
CN103541043A 一种电石墨烯复合纤维的制备方法 无效 - 撤回

一种电石墨烯复合纤维的制备方法
摘要：
本发明实施例提供了一种石墨烯复合纤维，包括石墨烯片以及将所述石墨烯片聚合在一起的聚合物，所述聚合物包括超支化聚合物以及聚乙烯醇中的一种或两种，所述石墨烯片与聚合物形成相互堆叠的层状结构且所述石墨烯片沿所述石墨烯复合纤维的轴向规整排列。上述石墨烯复合纤维的制作方法选用氧化石墨烯作为原料，大大提高了石墨烯复合纤维的拉伸强度；所述聚合物的加入为复合纤维提供了良好的韧性；纺丝过程采用旋转的凝固剂，给凝胶纤维增加了拉伸力，使其具有高取向和规整度，大大提高了所得固体纤维的强度；最后的还原过程很好的恢复了石墨烯的导电性能。
摘要（英）：

The embodiment of the invention provides a graphene composite fiber. The graphene composite fiber comprises graphene sheets and a polymer for polymerizing the graphene sheets together, wherein the polymer comprises one or both of hyperbranched polymer and polyvinyl alcohol, the graphene sheets and the polymer form a mutually piled stratified structure and the graphene sheets are regularly arranged along the axial direction of the graphene composite fiber. In the preparation method of the graphene composite fiber, graphene oxide is used as a raw material, so that the tensile strength of the graphene composite fiber is improved greatly; due to the addition of the polymer, the composite fiber can achieve better flexibility; because a rotary coagulator is used in the spinning process, the drawing force of the gel fiber is increased, so that the gel fiber has high orientation and regularity, and the strength of the obtained solid fiber is improved greatly; the conductivity of graphene is restored well in the final reduction process.

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