CARBON FIBER COMPOSITE MATERIAL

摘要

PROBLEM TO BE SOLVED: To provide a carbon fiber composite material which enhances the competitiveness of cost by reducing the use amount of an expensive carbon nano-tube and in which the rubber hardness can be adjusted more easily than conventional one while using a carbon nanotube.SOLUTION: There is provided a carbon fiber composite material 50 which comprises a fluorine-containing elastomer 30, a carbon nanotube 83 and high-structure carbon black 82. The blending amounts are 0.1 to 6 pts.mass of the carbon nanotube and 3 to 25 pts.mass of the high-structure carbon black based on 100 pts.mass of the fluorine-containing elastomer. The carbon nanotube 83 has an average diameter of 0.7 to 30 nm. The high-structure carbon black 82 has an average particle diameter of 35 to 80 nm and a DBP absorption amount (A method) of 140 to 160 cm/100 g.SELECTED DRAWING: Figure 3