Entangled single-wall carbon nanotube solid material and methods for making same
    3.
    发明授权
    Entangled single-wall carbon nanotube solid material and methods for making same 失效
    缠结单壁碳纳米管固体材料及其制备方法

    公开(公告)号:US06899945B2

    公开(公告)日:2005-05-31

    申请号:US10391988

    申请日:2003-03-19

    IPC分类号: D01F9/127 B32B3/20

    摘要: Buckyrock is a three-dimensional, solid block material comprising an entangled network of single-wall carbon nanotubes (SWNT), wherein the block comprises greater than 75 wt % SWNT. SWNT buckyrock is mechanically strong, tough and impact resistant. The single-wall carbon nanotubes in buckyrock form are present in a random network of individual single-wall carbon nanotubes, SWNT “ropes” and combinations thereof. The random network of the SWNT or SWNT ropes can be held in place by non-covalent “cross-links” between the nanotubes at nanotube contact points. In one embodiment, SWNT buckyrock is made by forming a SWNT-water slurry, slowly removing water from the slurry which results in a SWNT-water paste, and allowing the paste to dry very slowly, such that the SWNT network of the SWNT-water paste is preserved during solvent evaporation. Buckyrock can be used in applications, such as ballistic protection systems, involving light-weight material with mechanical strength, toughness and impact resistance.

    摘要翻译: Buckyrock是包含单壁碳纳米管(SWNT)的缠结网络的三维固体块材料,其中该块包含大于75wt%的SWNT。 SWNT buckyrock机械坚固,坚固耐冲击。 单斜壁碳纳米管的单壁碳纳米管存在于单个单壁碳纳米管,SWNT“绳索”及其组合的随机网络中。 SWNT或SWNT绳索的随机网络可以通过在纳米管接触点处的纳米管之间的非共价“交联”保持在适当位置。 在一个实施方案中,通过形成SWNT-水浆料,缓慢地从浆料中除去水,从而产生SWNT-水糊剂,并使糊料非常缓慢地干燥,从而使SWNT-水的SWNT网络 溶剂蒸发时保留糊状物。 Buckyrock可用于应用,如防弹系统,涉及具有机械强度,韧性和抗冲击性的轻质材料。

    Method for separating single-wall carbon nanotubes and compositions thereof
    4.
    发明授权
    Method for separating single-wall carbon nanotubes and compositions thereof 失效
    分离单壁碳纳米管的方法及其组合物

    公开(公告)号:US07074310B2

    公开(公告)日:2006-07-11

    申请号:US10379273

    申请日:2003-03-04

    IPC分类号: G01N27/447 B03C5/00 B01D15/08

    摘要: The invention relates to a process for sorting and separating a mixture of (n, m) type single-wall carbon nanotubes according to (n, m) type. A mixture of (n, m) type single-wall carbon nanotubes is suspended such that the single-wall carbon nanotubes are individually dispersed. The nanotube suspension can be done in a surfactant-water solution and the surfactant surrounding the nanotubes keeps the nanotube isolated and from aggregating with other nanotubes. The nanotube suspension is acidified to protonate a fraction of the nanotubes. An electric field is applied and the protonated nanotubes migrate in the electric fields at different rates dependent on their (n, m) type. Fractions of nanotubes are collected at different fractionation times. The process of protonation, applying an electric field, and fractionation is repeated at increasingly higher pH to separated the (n, m) nanotube mixture into individual (n, m) nanotube fractions. The separation enables new electronic devices requiring selected (n, m) nanotube types.

    摘要翻译: 本发明涉及一种根据(n,m)型分选(n,m)型单壁碳纳米管的混合物的方法。 (n,m)型单壁碳纳米管的混合物被悬浮,使得单壁碳纳米管分散分散。 纳米管悬浮液可以在表面活性剂 - 水溶液中进行,并且包围纳米管的表面活性剂保持纳米管分离并与其他纳米管聚集。 将纳米管悬浮液酸化以质子化纳米管的一部分。 施加电场,并且质子化的纳米管在电场中以取决于它们的(n,m)类型的不同速率迁移。 在不同的分馏时间收集纳米管的级分。 在越来越高的pH下重复质子化,施加电场和分级的过程,以将(n,m)纳米管混合物分离成单个(n,m)纳米管部分。 该分离使需要所选(n,m)纳米管类型的新电子器件成为可能。

    POLYMER-WRAPPED SINGLE-WALL CARBON NANOTUBES
    6.
    发明申请
    POLYMER-WRAPPED SINGLE-WALL CARBON NANOTUBES 审中-公开
    聚合物包裹单壁碳纳米管

    公开(公告)号:US20100143718A1

    公开(公告)日:2010-06-10

    申请号:US11847566

    申请日:2007-08-30

    IPC分类号: B32B5/02

    摘要: The present invention relates to new compositions of matter and articles of manufacture comprising SWNTs as nanometer scale conducting rods dispersed in an electrically-insulating matrix. These compositions of matter have novel and useful electrical, mechanical, and chemical properties including applications in antennas, electromagnetic and electro-optic devices, and high-toughness materials. Other compositions of matter and articles of manufacture are disclosed. including polymer-coated and polymer wrapped single-wall nanotubes (SWNTs), small ropes of polymer-coated and polymer-wrapped SWNTs and materials comprising same. This composition provides one embodiment of the SWNT conducting-rod composite mentioned above, and also enables creation of high-concentration suspensions of SWNTs and compatibilization of SWNTs with polymeric matrices in composite materials. This solubilization and compatibilization, in turn, enables chemical manipulation of SWNT and production of composite fibers, films, and solids comprising SWNTs.

    摘要翻译: 本发明涉及包含分散在电绝缘基质中的纳米级导电棒的SWNT的物质和制品的新组合物。 这些物质组合物具有新颖且有用的电学,机械和化学性质,包括在天线,电磁和电光器件以及高韧性材料中的应用。 公开了其他物质组合物和制品。 包括聚合物涂覆的和聚合物包裹的单壁纳米管(SWNT),聚合物涂覆的和聚合物包裹的SWNT的小绳索以及包含它们的材料。 该组合物提供了上述SWNT导电棒复合材料的一个实施方案,并且还能够形成SWNT的高浓度悬浮液,并且使复合材料中的SWNT与聚合物基质相容化。 这种增溶和相容反过来又能使SWNT的化学操作和复合纤维,薄膜和包含SWNT的固体的生产。

    MULTI-STEP PURIFICATION OF SINGLE-WALL CARBON NANOTUBES
    8.
    发明申请
    MULTI-STEP PURIFICATION OF SINGLE-WALL CARBON NANOTUBES 有权
    单壁碳纳米管的多步纯化

    公开(公告)号:US20100008843A1

    公开(公告)日:2010-01-14

    申请号:US11291638

    申请日:2005-11-30

    IPC分类号: D01F9/12 B82B3/00

    摘要: The present invention relates to processes for the purification of single-wall carbon nanotubes (SWNTs). Known methods of single-wall carbon nanotube production result in a single-wall carbon nanotube product that contains single-wall carbon nanotubes in addition to impurities including residual metal catalyst particles and amounts of small amorphous carbon sheets that surround the catalyst particles and appear on the side of the single-wall carbon nanotubes. The present purification processes remove the extraneous carbon as well as metal-containing residual catalyst particles.

    摘要翻译: 本发明涉及单壁碳纳米管(SWNT)的纯化方法。 单壁碳纳米管生产的已知方法导致单壁碳纳米管产物,除了包含残留金属催化剂颗粒的杂质和围绕催化剂颗粒的小的无定形碳片的含量之外,还包含单壁碳纳米管,并出现在 侧壁的单壁碳纳米管。 本纯化方法除去了外来的碳以及含金属的残留催化剂颗粒。

    Length-based liquid-liquid extraction of carbon nanotubes using a phase transfer catalyst
    9.
    发明授权
    Length-based liquid-liquid extraction of carbon nanotubes using a phase transfer catalyst 失效
    使用相转移催化剂的基于长度的液 - 液萃取碳纳米管

    公开(公告)号:US07578941B2

    公开(公告)日:2009-08-25

    申请号:US11289000

    申请日:2005-11-29

    IPC分类号: B01D11/02

    摘要: The present invention is generally directed to new liquid-liquid extraction methods for the length-based separation of carbon nanotubes (CNTs) and other 1-dimensional nanostructures. In some embodiments, such methods are directed to separating SWNTs on the basis of their length, wherein such methods comprise the steps of: (a) functionalizing SWNTs to form functionalized SWNTs with ionizable functional moieties; (b) dissolving said functionalized SWNTs in a polar solvent to form a polar phase; (c) dissolving a substoichiometric (relative to the amount of ionizable functional moieties present on the SWNTs) amount of a phase transfer agent in a non-polar solvent to form a non-polar phase; (d) combining the polar and non-polar phases to form a bi-phase mixture; (e) adding a cationic donor species to the bi-phase mixture; and (f) agitating the bi-phase mixture to effect the preferential transport of short SWNTs into the non-polar phase such that the non-polar phase is enriched in short SWNTs and the polar phase is enriched in longer SWNTs. In other embodiments, analogous methods are used for the length-based separation of any type of CNT, and more generally, for any type of 1-dimensional nanostructure.

    摘要翻译: 本发明一般涉及用于碳纳米管(CNT)和其它一维纳米结构的基于长度的分离的新的液 - 液萃取方法。 在一些实施方案中,这样的方法涉及基于其长度分离SWNT,其中此类方法包括以下步骤:(a)使SWNT官能化形成具有可离子化功能部分的官能化SWNT; (b)将所述官能化的单壁碳纳米管溶解在极性溶剂中以形成极性相; (c)在非极性溶剂中将相转移剂的亚化学计量(相对于存在于SWNT上的可离子化官能团的量)量溶解以形成非极性相; (d)组合极性和非极性相以形成双相混合物; (e)向双相混合物中加入阳离子供体物质; 和(f)搅拌双相混合物以实现短的单壁碳纳米管优先转运到非极性相中,使得非极性相富集在短的单壁碳纳米管中,极性相富集较长的单壁碳纳米管。 在其它实施方案中,类似的方法用于任何类型的CNT的长度分离,更通常地,对于任何类型的一维纳米结构。