To provide fine carbon fiber which exhibits excellent dispersibility when mixed with a matrix, can be readily oriented by means of an external force, and to provide a composite using the fiber.
The linear fine carbon fiber is provided, wherein each fiber includes a hollow space, and has an outer diameter of 1 to 1,000 nm, an aspect ratio of 5 to 1,000, and a BET specific surface area of 2 to 2,000 m2/g, wherein the average interlayer distance d002 of (002) faces by an X-ray diffraction method is 0.345 nm or less, and the ratio of the peak height (Id) of the band 1,341 to 1,349 cm-1 in a Raman scattering spectrum to that of the peak height (Ig) of the band 1,570 to 1,578 cm-1 (Id/Ig) is 0.1 to 2, and has a linearity of fiber with a bending angle of 30 or less with respect to the longitudinal direction of the fiber. The fine carbon fiber has an 110-4 or more of the anisotropic magnetic susceptibility measured by the suspension method, and the composite material using the same is provided.
TAKAHASHI TATSUHIRO
YAMAMOTO TATSUYUKI
MORITA TOSHIO
| JP2002275276A | 2002-09-25 | |||
| JPH07150419A | 1995-06-13 | |||
| JPH09132846A | 1997-05-20 | |||
| JPH0574452A | 1993-03-26 | |||
| JP2003051310A | 2003-02-21 | |||
| JP2002273741A | 2002-09-25 |
| WO2000058536A1 | 2000-10-05 |
Atsushi Hayashi
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