Carbon fibrils, method for producing same and adhesive compositions
containing same
    5.
    发明授权
    Carbon fibrils, method for producing same and adhesive compositions containing same 失效
    碳原纤维,其制造方法和含有它们的粘合剂组合物

    公开(公告)号:US5589152A

    公开(公告)日:1996-12-31

    申请号:US466878

    申请日:1995-06-06

    摘要: This invention concerns a discrete carbon fibril characterized by a substantially constant diameter between about 3.5 and about 70 nanometers, length greater than about 5 times the diameter and less than about 100 times the diameter, an outer region of multiple essentially continuous layers of ordered carbon atoms and a distinct inner core region. The invention further concerns a plurality of such fibrils.The fibrils of this invention may be produced by contacting for an appropriate period of time and at a suitable pressure a suitable metal-containing particle with a suitable gaseous, carbon-containing compound, at a temperature between about 850.degree. C. and 1200.degree. C., or by treating discrete carbon fibrils, characterized by a length greater than about 100 times the diameter. Carbon fibrils may also be continuously produced by continuously contacting for an appropriate period of time at suitable conditions.Another aspect of the invention concerns a composition of matter comprising a carbon fiber or a carbon plate and a plurality of fibrils.Carbon fibrils and compositions of matter comprising carbon fibrils are useful in composites having a matrix of e.g., an organic polymer, an organic polymer or a metal. In specific embodiments, the fibrils or the compositions of matter may be used to reinforce a structural material, to enhance the electrical or thermal conductivity of a material, to increase the surface area of an electrode or capacitor plate, to provide a support for a catalyst, or to shield an object from electromagnetic radiation.

    摘要翻译: 本发明涉及离散的碳原纤维,其特征在于基本恒定的直径在约3.5和约70纳米之间,长度大于直径的约5倍且小于直径的约100倍,多个基本连续的有序碳原子层的外部区域 和不同的内芯区域。 本发明还涉及多个这样的原纤维。 本发明的原纤维可以通过在合适的时间和合适的压力下,将合适的含金属颗粒与合适的含气态碳的化合物在约850℃和1200℃之间的温度下接触来制备 或通过处理离散的碳原纤维,其特征在于长度大于直径的约100倍。 碳原纤维也可以通过在合适的条件下连续接触适当的时间来连续生产。 本发明的另一方面涉及包含碳纤维或碳板和多个原纤维的物质组成。 碳原纤维和包含碳原纤维的物质组合物可用于具有例如有机聚合物,有机聚合物或金属的基体的复合材料中。 在具体实施方案中,原纤维或物质组合物可用于加强结构材料,以增强材料的导电性或导热性,增加电极或电容器板的表面积,以提供催化剂的载体 ,或屏蔽物体免受电磁辐射。