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    GRAPHENE FIBER AND PREPARATION METHOD THEREFOR
    2.
    发明公开
    GRAPHENE FIBER AND PREPARATION METHOD THEREFOR 有权
    GRAPHENFASER UND HERSTELLUNGSVERFAHRENDAFÜR

    公开(公告)号：EP2837716A1

    公开(公告)日：2015-02-18

    申请号：EP13881920.6

    申请日：2013-10-12

    申请人： Huawei Technologies Co., Ltd.

    发明人： Zhou, Xiaosong ,  XU, Yan ,  GAO, Chao ,  XU, Zhen

    IPC分类号： D01F9/12 ,  D01F9/08 ,  D01F1/09 ,  D01D5/06

    CPC分类号： D01F9/12 ,  C01B32/182 ,  C01B32/194 ,  D01D5/06 ,  D01F1/09 ,  D01F11/10 ,  D10B2101/12 ,  D10B2101/20 ,  D10B2401/16 ,  Y10T428/2918

    摘要： A graphene fiber and a preparation method thereof, where the graphene fiber is a composite fiber of metal nanowire doped graphene fiber, and principal components of the composite fiber are graphene and metal nanowires, a mass ratio of metal nanowires is 0.1%-50%, the graphene is in a form of sheet, and both the metal nanowires and graphene sheets are arranged in parallel along an axial direction of the graphene fiber. The metal nanowire doped graphene fiber is a new type of a high performance multi-functional fiber material, which achieves a significant improvement in electrical conductivity of graphene fibers through doping of metal nanowires and meanwhile demonstrates excellent tensile strength and toughness. The metal nanowire doped graphene fiber has great potential application value in a plurality of fields, for example, it is used as a lightweight flexible wire.

    摘要翻译： 石墨烯纤维及其制备方法，其中石墨烯纤维是金属纳米线掺杂石墨烯纤维的复合纤维，复合纤维的主要成分是石墨烯和金属纳米线，金属纳米线的质量比为0.1％-50％ 石墨烯是片状的，并且金属纳米线和石墨烯片都沿石墨烯纤维的轴向平行布置。 金属纳米线掺杂石墨烯纤维是一种新型的高性能多功能纤维材料，通过掺杂金属纳米线，可显着提高石墨烯纤维的导电性，同时显示出优异的拉伸强度和韧性。 金属纳米线掺杂石墨烯纤维在多个场中具有很大的潜在应用价值，例如，其用作轻质柔性线。

    VAPOR GROWN CARBON FIBER, PRODUCTION METHOD THEREOF AND COMPOSITE MATERIAL CONTAINING THE CARBON FIBER
    4.
    发明公开
    VAPOR GROWN CARBON FIBER, PRODUCTION METHOD THEREOF AND COMPOSITE MATERIAL CONTAINING THE CARBON FIBER 有权
    KATALYTISCH GEWACHSENE碳粉，DEREN HERSTELLUNGSVERFAHREN SOWIE DIE碳粉加速器VERBUNDSTOFF

    公开(公告)号：EP1756340A4

    公开(公告)日：2009-11-11

    申请号：EP05748141

    申请日：2005-06-07

    申请人： SHOWA DENKO KK

    发明人： YANO KOTARO ,  YAMAMOTO RYUJI ,  MORITA TOSHIO

    IPC分类号： D01F9/127 ,  C01B31/02 ,  C04B35/80 ,  C08K3/00 ,  C08K7/00 ,  D01F6/92 ,  D01F11/00 ,  D06M11/01 ,  D06M11/34

    CPC分类号： D01F9/127 ,  B82Y30/00 ,  C08J5/042 ,  C08K3/04 ,  C08K7/06 ,  C08K2201/016 ,  D01F11/10 ,  D06M11/34 ,  Y10S977/754 ,  Y10S977/832 ,  Y10S977/833 ,  Y10S977/84 ,  Y10T428/2918 ,  Y10T428/298

    摘要： The invention relates to a vapor grown carbon fiber having a mean fiber diameter of 80 to 500 nm, an aspect ratio of 100 to 200 and preferably a bulk density of 0.02 g/cm3 or less, wherein filaments having a diameter within ±20% of the mean fiber diameter occupies 65% (on a number basis) or more of the total. The production method involves thermal decomposition of a carbon source at 800 to 1,300° C. in the presence of, as a catalyst, a transition metal compound having a vapor pressure of 0.13 kPa (1 mmHg) or more at 150° C. and spraying of the carbon source and the transition metal compound in gas form toward the reactor inner wall to allow reaction to proceed. The vapor grown carbon fiber having a larger aspect ratio has excellent dispersibility, and when added in a resin, a smaller amount contributes to enhancement in electroconductivity and thermal conductivity, as compared with a case using conventional one.

    摘要翻译： 本发明涉及平均纤维直径为80〜500nm，纵横比为100〜200，优选体积密度为0.02g / cm 3以下的气相生长碳纤维，其中直径在±20％以内的长丝 平均纤维直径占总数的65％（以数量计）。 作为催化剂，在150℃下蒸气压为0.13kPa（1mmHg）以上的过渡金属化合物作为催化剂，在800〜1300℃下热分解碳源，进行喷雾 的碳源和以气体形式的过渡金属化合物朝向反应器内壁，以允许反应进行。 具有较大纵横比的气相生长碳纤维具有优异的分散性，与使用常规的情况相比，当添加到树脂中时，较少的量有助于提高导电性和导热性。