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US 11,773,233 B2Granted
Carbon composite material and method for producing same
AssigneeLG Chem, Ltd.
InventorsSeokwon Kim, Se Hyun Kim, Tae Hyung Kim, Pyeong-Gi Kim, Suk Jo Choi, Dong Hyun Cho
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Abstract
The present invention relates to a carbon composite material and a method for producing the same, and more particularly, to a carbon composite material capable of improving electrostatic dispersibility and flame retardancy, and a method for producing the same. The carbon composite material according to the present invention can be effectively applied to products requiring conductivity and flame retardancy.
Claims28
A carbon composite material in the form of a mixture comprising:
- a polymer resin;
- a carbon nanotube dispersed in the mixture;
- a glass fiber;
- and
- a phosphate ester derivative,
- wherein the carbon nanotube has a thermal decomposition temperature of 600° C. or higher, and wherein a ratio of the weight of carbon nanotube to the weight of phosphate ester derivative present in the carbon composite material is 1:3-15, and
- wherein the carbon composite material has a surface resistance of 104-108 ohm/sq;
- wherein a ratio of the maximum value to the minimum value of the surface resistance, as measured according to ASTM D257, of the composite material is 1×102 or less.
5 more elements
A carbon composite material in the form of a mixture comprising:
- a polymer resin;
- a carbon nanotube dispersed in the mixture;
- a glass fiber;
- and
- a phosphate ester derivative,
- wherein the carbon nanotube has a thermal decomposition temperature of 600° C. or higher, and wherein a ratio of the weight of carbon nanotube to the weight of phosphate ester derivative present in the carbon composite material is 1:3-15,
- wherein a ratio of the maximum value to the minimum value of the surface resistance, as measured according to ASTM D257, of the composite material is 1×102 or less, and
- wherein, based on the total weight of the carbon composite material, the content of the carbon nanotuhes is 0.001 to 30% by weight, an average length of the carbon nanotube is 10 to 500 μm, and an aspect ratio of the carbon nanotube is 500 to 5000 and is calculated according to the following Equation (1)
- Aspect ratio=Length (L)/Diameter (D), [Equation 1]
- wherein the carbon composite material has a thermal deformation temperature of 95° C. or more.
7 more elements
Dependencies are inferred from the claim text.