What material is carbon fiber?
Carbon fiber (carbon fiber, referred to as CF) is a new kind of fiber material with high strength and high modulus fiber with carbon content of more than 95%. It is a flaky graphite, microcrystalline and other organic fibers stacked along the axial direction of the fiber, obtained by carbonization and graphitization of microcrystalline graphite material. Carbon fiber "an hand in a velvet glove lighter than aluminum," the quality, but the strength is higher than that of steel, and has the characteristics of corrosion resistance, high modulus, in the national defense and civilian areas are important materials. It has not only the intrinsic characteristics of carbon materials, but also the softness and processability of textile fibers. It is a new generation of reinforced fiber.
Carbon fiber belongs to polymer materials, is currently one of the highest strength materials in the field of materials, strength is above 4900MPa, is 10 times that of ordinary steel strength, and has good conductive materials, acid and alkali resistance, high temperature, X ray transmittance with many excellent features such as.
Carbon fiber has many excellent properties, carbon fiber axial strength and high modulus, low density, high performance, no creep, non oxidation under the environment of high temperature resistance, good fatigue resistance, between heat and electrical conductivity between the metal and non metal, smaller thermal expansion coefficient and anisotropy, good corrosion resistance, X Radiability good. Good conductivity, thermal conductivity, good electromagnetic shielding, etc..Compared with the traditional carbon fiber glass fiber, the young's modulus is more than 3 times; compared with Kevlar fiber, the young's modulus is about 2 times in the organic solvent, acid and alkali insoluble swelling, outstanding corrosion resistance.
