| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a material for a viscoelastic body which has excellent handleability because of small tack and can selectively collect particles of a specific particle diameter, and a viscoelastic body using such a material. <P>SOLUTION: A carbon nanotube aggregate 10 comprises a plurality of carbon nanotubes 2, wherein the carbon nanotubes have a plurality of layers, the distribution width of layer number distribution of the carbon nanotubes is ≥10 layers, the relative frequency of the mode value of the layer number distribution is ≤25%, and the carbon nanotubes have a length of larger than 10 μm. Another carbon nanotube aggregate comprises a plurality of carbon nanotubes, wherein the carbon nanotubes have a plurality of layers, the mode value of the layer number distribution of the carbon nanotubes exists in a layer number of ≤10 layers, the relative frequency of the mode value is ≥30%, and the carbon nanotubes have a length of larger than 10 μm. <P>COPYRIGHT: (C)2013,JPO&INPIT |
