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AssigneeLG Chem, Ltd.
InventorsKyung Yeon Kang, Yelin Kim, Jihee Woo, Seungyong Lee, Hyungsik Jang, Dong Hyun Cho, Sang Hoon Choy
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The carbon nanotube pellets according to the present invention are produced by using only a small amount of solvent and have increased apparent density. The present invention can improve the problems of the change of the content generated by scattering of powders and safety issues by using carbon nanotubes in the form of pellet rather than carbon nanotubes in the form of powder in composite materials. And since the density of the pellet form is higher than that of the powder form, transport, transfer and improvement become easier. Therefore, it can be more effectively applied to the manufacturing of composite materials.
Carbon nanotube pellets having an apparent density of 90 kg/m3 or more, which are obtained by mixing carbon nanotubes and a solvent at a weight ratio of 5:1 to 1:2, and extruding the mixture, wherein a D50 particle size of the carbon nanotubes contained within the pellets is 39.6 μm or less, and a D90 particle size of the carbon nanotubes contained within the pellets is 89.1 μm or less.
A method for producing carbon nanotube pellets, comprising the steps mixing and stirring carbon nanotubes and a solvent at a weight ratio of 5:1 to 1:2 to prepare a carbon nanotube paste;
A method for producing carbon nanotube pellets, comprising the steps of:
Dependencies are inferred from the claim text.