POLYVINYLIDENE FLUORIDE COMPOSITES AND METHODS FOR PREPARING SAME
    32.
    发明公开
    POLYVINYLIDENE FLUORIDE COMPOSITES AND METHODS FOR PREPARING SAME 审中-公开
    聚亚乙烯基氟化物复合材料及其制备方法

    公开(公告)号:EP1415309A1

    公开(公告)日:2004-05-06

    申请号:EP02749893.0

    申请日:2002-07-10

    摘要: An electrically conductive composite comprising a polyvinylidene fluoride polymer or copolymer and carbon nanotubes is provided. Preferably, carbon nanotubes may be present in the range of about 0.5-20% by weight of the composite. The composites are prepared by dissolving the polymer in a first solvent to form a polymer solution and then adding the carbon nanotubes into the solution. The solution is mixed using an energy source such as a sonicator or a Waring blender. A precipitating component is added to precipitate out a composite comprising the polymer and the nanotubes. The composite is isolated by filtering the solution and drying the composite. The composites are also prepared by mixing or dispersing carbon nanotubes in polymer emulsion using an energy source such as a Waring blender. The liquid in the mixture is then evaporated to obtain the composite comprising the polymer and the nanotubes.

    摘要翻译: 提供了包含聚偏二氟乙烯聚合物或共聚物和碳纳米管的导电复合材料。 优选地,碳纳米管可以以复合物的约0.5-20重量%的范围存在。 通过将聚合物溶解在第一溶剂中以形成聚合物溶液,然后将碳纳米管添加到溶液中来制备复合材料。 该溶液使用能量源如超声波仪或韦林氏混合器进行混合。 加入沉淀组分以沉淀出包含聚合物和纳米管的复合物。 通过过滤溶液并干燥复合物来分离复合物。 该复合材料还可以通过使用诸如Waring搅拌器之类的能源将碳纳米管混合或分散在聚合物乳液中来制备。 然后蒸发混合物中的液体以获得包含聚合物和纳米管的复合物。

    Process for producing carbon fibrils and reaction apparatus
    37.
    发明公开
    Process for producing carbon fibrils and reaction apparatus 失效
    一种用于生产碳纤维和装置的过程为此

    公开(公告)号:EP0969127A3

    公开(公告)日:2000-02-23

    申请号:EP99114233.2

    申请日:1989-12-18

    IPC分类号: D01F9/127 D01F9/133

    摘要: The present invention relates to a a continuous process for producing carbon fibrils by decomposing a source of carbon at elevated temperatures in contact with a multivalent metal and recovering the fibrils formed thereby comprising the steps of introducing catalyst particles having a size of up to 400 µm (microns) and comprising at least one multivalent transition metal on a particulate substrate into a reactor heated to a temperature of 500°C to 1500°C, and recovering the fibrils formed thereby wherein said metal is present on said substrate as a multiplicity of discontinuous catalytic sites which, at least during fibril formation, have a size of 3,5 to 70 nm (35 to 700 Å) which size is measured by measuring the size of the transition metal particles recovered along with produced fibrils. This invention also relates to a reaction apparatus to be used for carrying out said process.

    ELECTRICALLY CONDUCTIVE POLYMER COMPOSITION
    39.
    发明公开
    ELECTRICALLY CONDUCTIVE POLYMER COMPOSITION 失效
    导电聚合物组合物

    公开(公告)号:EP0857349A1

    公开(公告)日:1998-08-12

    申请号:EP96935389.0

    申请日:1996-10-22

    IPC分类号: C08K3 C08K7 C08L101 H01B1

    CPC分类号: H01B1/20 H01B1/24

    摘要: A white or colored electrically conductive polymer composition is provided using carbon fiber. The composition comprises a moldable organic polymer dispersed therein (a) at least 0.01 wt.% and less than 2 wt.% of hollow carbon microfibers having an outer diameter of 3.5 - 70 nm and an aspect ratio of at least 5, (b) 2.5 - 40 wt.% of an electrically conductive white powder (such as TiO2 powder coated with antimony-doped tin oxide, or aluminum-doped zinc oxide powder), and optionally (c) a colorant for coloration.

    摘要翻译: 使用碳纤维提供白色或有色导电聚合物组合物。 该组合物包含分散在其中的可模制有机聚合物(a)至少0.01重量%且小于2重量%的外径为3.5-70nm且纵横比为至少5的中空碳微纤维,(b) 2.5-40%(重量)的导电白色粉末(如涂有锑掺杂氧化锡的TiO2粉末或铝掺杂氧化锌粉末)和任选的(c)着色剂进行着色。

    HIGH STRENGTH CONDUCTIVE POLYMERS
    40.
    发明公开
    HIGH STRENGTH CONDUCTIVE POLYMERS 失效
    高强度的导电聚合物

    公开(公告)号:EP0692136A1

    公开(公告)日:1996-01-17

    申请号:EP94911747.0

    申请日:1994-03-30

    CPC分类号: C08K7/06 H01B1/24

    摘要: A polymeric composition having improved toughness and conductivity comprising carbon fibrils, at least a portion of which are in the form of aggregates, wherein, as measured on an area basis, substantially all of the aggregates are less than about 35νm in diameter. A polymeric composition having improved toughness and conductivity is prepared by combining carbon fibrils, at least a portion of which are in the form of aggregates, with a polymeric material, mixing the combination to distribute the fibrils in the polymeric material and applying shear to the combination to break down the aggregates until substantially all of the aggregates are less than about 35νm in diameter.