High tensile strength carbon nanotube film and process for making the same
    5.
    发明申请
    High tensile strength carbon nanotube film and process for making the same 审中-公开
    高抗拉强度碳纳米管薄膜及其制造方法

    公开(公告)号:US20060029537A1

    公开(公告)日:2006-02-09

    申请号:US10984619

    申请日:2004-11-09

    IPC分类号: D01F9/12

    摘要: A conductive carbon nanotube film having high tensile strength and initial tensile modulus comprises primarily oxidized small-diameter carbon nanotubes wherein the diameter of the small-diameter carbon nanotubes are at most about 3 nm. A method for making the film comprises refluxing an aqueous mixture comprising carbon nanotubes and an oxidizing agent to form a refluxed nanotube dispersion; forming a carbon nanotube film from the refluxed carbon nanotube dispersion; optionally removing nitric acid or other oxidizing agent from the carbon nanotube film; drying the carbon nanotube film; and heat-treating the carbon nanotube film to form a heat-treated carbon nanotube film. The method can also comprise sonicating the nanotubes prior to or after refluxing. A heat-treated small-diameter carbon nanotube film can have a tensile strength of over 70 MPa and an initial tensile modulus of about 5 GPa.

    摘要翻译: 具有高拉伸强度和初始拉伸模量的导电碳纳米管膜主要包括氧化的小直径碳纳米管,其中小直径碳纳米管的直径至多约3nm。 制备该膜的方法包括回流包含碳纳米管和氧化剂的含水混合物以形成回流的纳米管分散体; 从回流的碳纳米管分散体形成碳纳米管膜; 任选地从碳纳米管膜除去硝酸或其它氧化剂; 干燥碳纳米管膜; 并对碳纳米管膜进行热处理以形成热处理的碳纳米管膜。 该方法还可以包括在回流之前或之后超声处理纳米管。 经热处理的小直径碳纳米管膜的拉伸强度可以超过70MPa,初始拉伸模量可以为约5GPa。