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    Composite materials comprising polar polymers and single-wall carbon nanotubes
    1.
    发明授权
    Composite materials comprising polar polymers and single-wall carbon nanotubes 有权
    复合材料包括极性聚合物和单壁碳纳米管

    公开(公告)号：US06936653B2

    公开(公告)日：2005-08-30

    申请号：US10389256

    申请日：2003-03-14

    申请人： Kenneth O. McElrath ,  Kenneth A. Smith ,  Thomas M. Tiano ,  Margaret E. Roylance

    发明人： Kenneth O. McElrath ,  Kenneth A. Smith ,  Thomas M. Tiano ,  Margaret E. Roylance

    IPC分类号： B82B1/00 ,  C08K7/06 ,  C08K7/24 ,  C08L101/00 ,  H01B1/24 ,  C08K3/04

    CPC分类号： C08K7/24 ,  B82Y10/00 ,  B82Y30/00 ,  H01B1/24 ,  Y10S977/753

    摘要： The invention relates to a composite comprising a weight fraction of single-wall carbon nanotubes and at least one polar polymer wherein the composite has an electrical and/or thermal conductivity enhanced over that of the polymer alone. The invention also comprises a method for making this polymer composition. The present application provides composite compositions that, over a wide range of single-wall carbon nanotube loading, have electrical conductivities exceeding those known in the art by more than one order of magnitude. The electrical conductivity enhancement depends on the weight fraction (F) of the single-wall carbon nanotubes in the composite. The electrical conductivity of the composite of this invention is at least 5 Siemens per centimeter (S/cm) at (F) of 0.5 (i.e. where single-wall carbon nanotube loading weight represents half of the total composite weight), at least 1 S/cm at a F of 0.1, at least 1×10−4 S/cm at (F) of 0.004, at least 6×10−9 S/cm at (F) of 0.001 and at least 3×10−16 S/cm (F) plus the intrinsic conductivity of the polymer matrix material at of 0.0001. The thermal conductivity enhancement is in excess of 1 Watt/m-° K. The polar polymer can be polycarbonate, poly(acrylic acid), poly(acrylic acid), poly(methacrylic acid), polyoxide, polysulfide, polysulfone, polyamides, polyester, polyurethane, polyimide, poly(vinyl acetate), poly(vinyl alcohol), poly(vinyl chloride), poly(vinyl pyridine), poly(vinyl pyrrolidone), copolymers thereof and combinations thereof. The composite can further comprise a nonpolar polymer, such as, a polyolefin polymer, polyethylene, polypropylene, polybutene, polyisobutene, polyisoprene, polystyrene, copolymers thereof and combinations thereof.

    摘要翻译： 本发明涉及一种复合材料，其包含单壁碳纳米管的重量分数和至少一种极性聚合物，其中复合材料的电和/或热导率比单独聚合物的电导率和/或导热系数增强。 本发明还包括制备该聚合物组合物的方法。 本申请提供复合组合物，其在宽范围的单壁碳纳米管负载下具有超过本领域已知的超过一个数量级的电导率。 电导率增强取决于复合材料中单壁碳纳米管的重量分数（F）。 本发明的复合材料的电导率在（F）为0.5时每厘米至少5西门子（S / cm）（即单壁碳纳米管负载重量占总复合重量的一半），至少1 S / F，在（F）为0.004时至少为1×10 -4 S / cm，在（F）时为至少6×10 -9 S / cm 0.001和至少3×10 -6 / cm（F）加上聚合物基质材料的固有电导率为0.0001。 热导率提高超过1瓦/米-2°K。极性聚合物可以是聚碳酸酯，聚（丙烯酸），聚（丙烯酸），聚（甲基丙烯酸），聚氧化物，多硫化物，聚砜，聚酰胺，聚酯 ，聚氨酯，聚酰亚胺，聚（乙酸乙烯酯），聚（乙烯醇），聚（氯乙烯），聚（乙烯基吡啶），聚（乙烯基吡咯烷酮），其共聚物及其组合。 复合材料还可以包含非极性聚合物，例如聚烯烃聚合物，聚乙烯，聚丙烯，聚丁烯，聚异丁烯，聚异戊二烯，聚苯乙烯，其共聚物和它们的组合。