Carbon fiber(CF) is a new type of high-strength, high-modulus fiber with a carbon content of more than 95 %. It is a microcrystalline graphite material obtained from organic fibers such as flake graphite microcrystals piled in the direction of the fiber axis and carbonized and graphed.
The carbon fiber rod "outer flexible inner rigid" is lighter in quality than metallic aluminum, but its strength is higher than that of steel, and it has corrosion resistance and high modulus characteristics. It is an important material for national defense and civilian use. It not only has the intrinsic characteristics of carbon materials, but also has the softness and processability of textile fibers. It is a new generation of reinforced fibers.
Carbon fiber rods have many excellent properties. The carbon fiber rods have high axial strength and modulus, low density, high specific performance, no creep, high temperature resistance under non-oxidation conditions, good fatigue resistance, and thermal and electrical conductivity. Between non-metals and metals, The thermal expansion coefficient is small and Anisotropy, corrosion resistance is good, and X-ray transmission is good.
Good thermal conductivity, good electromagnetic shielding, etc..
Compared with the traditional glass fiber, the Young's modulus is more than three times. Compared with the Kevlar fiber, the Young's modulus is about 2 times that of it. It is insoluble in organic solvents, acids, and alkalis, and its corrosion resistance is prominent.
Carbon fiber rods are inorganic polymer fibers with a carbon content of more than 90 %. Among them, graphite fibers with a carbon content of more than 99 % are called graphite fibers. The microscopic structure of the carbon fiber rod is similar to artificial graphite and is a chaotic graphite structure.