公开(公告)号：US20080277627A1

公开(公告)日：2008-11-13

申请号：US11672124

申请日：2007-02-07

申请人： Sreekumar T. Veedu ,  Satish Kumar

发明人： Sreekumar T. Veedu ,  Satish Kumar

IPC分类号： H01B1/04 ,  D01F9/12 ,  B05D5/12

CPC分类号： D06M11/74 ,  B82Y30/00 ,  B82Y40/00 ,  C01B32/168 ,  C01B2202/02 ,  C03C17/007 ,  C03C25/47 ,  C03C2217/475 ,  C08K3/04 ,  C09D1/00 ,  C09D5/24 ,  C09D7/70 ,  Y10T428/2918 ,  Y10T428/30

摘要： The invention relates to a film comprising greater than 80 wt % single-wall carbon nanotubes wherein the tensile modulus is at least about 6 GPa at 0.2% strain and the conductivity of the film is at least about 70,000 S/m. The tensile modulus is typically about 8 GPa at 0.2% strain. The method for making the film comprises preparing a solution of single-wall carbon nanotubes in a superacid, such as oleum containing approximately 20 to 30% sulfur trioxide, under a dry, oxygen-free atmosphere. The solution is placed on a surface in a moisture-containing atmosphere, wherein the solution absorbs moisture and acid leaches out. The film is washed to further remove acid, dried, and, optionally, subjected to a heat treatment. Besides free-standing films, coatings of single-wall carbon nanotubes can be made on a variety of surfaces including polymers, glass, metals, and ceramics. The surfaces can be flat planes, fibers or contour shapes.

摘要翻译： 本发明涉及包含大于80重量％的单壁碳纳米管的膜，其中在0.2％应变下的拉伸模量为至少约6GPa，并且膜的导电率为至少约70,000S / m。 在0.2％应变下，拉伸模量通常约为8GPa。 制造该膜的方法包括在干燥的无氧气氛下，在含有约20-30％三氧化硫的发烟硫酸的超酸中制备单壁碳纳米管的溶液。 将溶液放置在含水气氛中的表面上，其中溶液吸收水分并酸浸出。 洗涤该膜以进一步除去酸，干燥，并且任选地进行热处理。 除了独立的膜，单壁碳纳米管的涂层可以在各种表面上制成，包括聚合物，玻璃，金属和陶瓷。 表面可以是平面，纤维或轮廓形状。

公开(公告)号：US07192642B2

公开(公告)日：2007-03-20

申请号：US10386370

申请日：2003-03-11

申请人： Sreekumar T. Veedu ,  Satish Kumar

发明人： Sreekumar T. Veedu ,  Satish Kumar

IPC分类号： D01F9/12

CPC分类号： D06M11/74 ,  B82Y30/00 ,  B82Y40/00 ,  C01B32/168 ,  C01B2202/02 ,  C03C17/007 ,  C03C25/47 ,  C03C2217/475 ,  C08K3/04 ,  C09D1/00 ,  C09D5/24 ,  C09D7/70 ,  Y10T428/2918 ,  Y10T428/30

摘要： The invention relates to a film comprising greater than 80 wt % single-wall carbon nanotubes wherein the tensile modulus is at least about 6 GPa at 0.2% strain and the conductivity of the film is at least about 70,000 S/m. The tensile modulus is typically about 8 GPa at 0.2% strain. The method for making the film comprises preparing a solution of single-wall carbon nanotubes in a superacid, such as oleum containing approximately 20 to 30% sulfur trioxide, under a dry, oxygen-free atmosphere. The solution is placed on a surface in a moisture-containing atmosphere, wherein the solution absorbs moisture and acid leaches out. The film is washed to further remove acid, dried, and, optionally, subjected to a heat treatment. Besides free-standing films, coatings of single-wall carbon nanotubes can be made on a variety of surfaces including polymers, glass, metals, and ceramics. The surfaces can be flat planes, fibers or contour shapes.

摘要翻译： 本发明涉及包含大于80重量％的单壁碳纳米管的膜，其中在0.2％应变下的拉伸模量为至少约6GPa，并且膜的导电率为至少约70,000S / m。 在0.2％应变下，拉伸模量通常约为8GPa。 制造该膜的方法包括在干燥的无氧气氛下，在含有约20-30％三氧化硫的发烟硫酸的超酸中制备单壁碳纳米管的溶液。 将溶液放置在含水气氛中的表面上，其中溶液吸收水分并酸浸出。 洗涤该膜以进一步除去酸，干燥，并且任选地进行热处理。 除了独立的膜，单壁碳纳米管的涂层可以在各种表面上制成，包括聚合物，玻璃，金属和陶瓷。 表面可以是平面，纤维或轮廓形状。

公开(公告)号：US06852410B2

公开(公告)日：2005-02-08

申请号：US10609724

申请日：2003-06-30

申请人： Sreekumar T. Veedu ,  Satish Kumar

发明人： Sreekumar T. Veedu ,  Satish Kumar

IPC分类号： B32B3/00 ,  D01F1/09 ,  D01F1/10 ,  D01F6/00 ,  D01F6/18 ,  D01F6/38 ,  D01F9/12 ,  D01F9/127

CPC分类号： D01F1/09 ,  B82Y30/00 ,  D01F1/10 ,  D01F6/18 ,  D01F6/38 ,  D01F9/225 ,  Y10S977/75 ,  Y10S977/788 ,  Y10T428/2918 ,  Y10T428/2927 ,  Y10T428/2967

摘要： The present invention relates to a high modulus macroscopic fiber comprising single-wall carbon nanotubes (SWNT) and an acrylonitrile-containing polymer. In one embodiment, the macroscopic fiber is a drawn fiber having a cross-sectional dimension of at least 1 micron. In another embodiment, the acrylonitrile polymer-SWNT composite fiber is made by dispersing SWNT in a solvent, such as dimethyl formamide or dimethyl acetamide, admixing an acrylonitrile-based polymer to form a generally optically homogeneous polyacrylonitrile polymer-SWNT dope, spinning the dope into a fiber, drawing and drying the fiber. Polyacrylonitrile/SWNT composite macroscopic fibers have substantially higher modulus and reduced shrinkage versus a polymer fiber without SWNT. A polyacrylonitrile/SWNT fiber containing 10 wt % SWNT showed over 100% increase in tensile modulus and significantly reduced thermal shrinkage compared to a control fiber without SWNT. With 10 wt % SWNT, the glass transition temperature of the polymer increased by more than 40° C.

摘要翻译： 本发明涉及包含单壁碳纳米管（SWNT）和含丙烯腈的聚合物的高模量宏观纤维。 在一个实施方案中，宏观纤维是具有至少1微米的横截面尺寸的拉伸纤维。 在另一个实施方案中，丙烯腈聚合物-WWNT复合纤维通过将SWNT分散在诸如二甲基甲酰胺或二甲基乙酰胺的溶剂中，混合丙烯腈基聚合物以形成通常光学上均匀的聚丙烯腈聚合物-WNNT涂料来制备，将纺丝原液 纤维，拉丝和干燥纤维。 与不含SWNT的聚合物纤维相比，聚丙烯腈/ SWNT复合宏观纤维具有显着更高的模量和降低的收缩率。 含有10重量％SWNT的聚丙烯腈/ SWNT纤维与不含SWNT的对照纤维相比，拉伸模量增加超过100％，并且显着降低热收缩。 对于10重量％的SWNT，聚合物的玻璃化转变温度提高了40℃以上。