High conductivity carbon fiber

Details High conductivity carbon fiber High conductivity carbon fiber

1988-06-23

1990-05-08

Doll, John

Compositions

Electrically conductive or emissive compositions

Elemental carbon containing

252502, 4234473, 423448, 423449, H01B 106

Patent

active

049236377

ABSTRACT:
To obtain stable and high conductivity carbon fiber, hydrocarbon is thermodecomposed in vapor phase into carbon fiber with such a crystal structure that carbon hexagonal net planes thereof are arranged substantially in parallel to fiber axis and in annular ring growth fashion around the fiber axis, and then the carbon fiber is pulverized into 10 .mu.m or less long carbon fiber. Since the carbon fiber is pulverized into relatively short length, when mixed with resin or rubber material without damaging the carbon crystal structure, it is possible to obtain stable and high conductivity resin or rubber material. Further, it is also possible to effectively infiltrate reactive substance to between the carbon hexagonal net planes to form further higher conductivity carbon intercalation compound.

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patent: 4749557 (1988-06-01), Yetter et al.
patent: 4770867 (1988-09-01), Coubn et al.
patent: 4818437 (1989-04-01), Wiley
patent: 4839114 (1989-06-01), Delphin et al.

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