Carbon fiber , as its name implies, not only has the intrinsic characteristics of carbon materials, but also has the flexibility of textile fibers, which is a new generation reinforced fiber. Compared to the traditional glass fiber (GF), the young's modulus is 2 times more than it; If compare to Kevlar fiber (KF-49), the young's modulus is 2 times of it, and the carbon-carbon fiber do not dissolve and inflate in organic solvent, acid and base, with good stain resistance.
The former one is called carbon - carbon composite material which is made from carbon fiber.