Is carbon fiber a composite?
Main categories:1, carbon fiber can be divided into polyacrylonitrile based carbon fiber, carbon fiber, pitch based carbon fiber, viscose based carbon fiber, phenolic base carbon fiber and gas phase growing carbon fiber according to the source of raw material;2, according to the performance can be divided into general type, high strength, medium modulus, high strength, high model and ultra high carbon fiber model;3, according to the state is divided into filament, short fiber and chopped fiber;4, according to mechanical properties can be divided into general type and high performance type.
Carbon fiber is an inorganic high polymer fiber with carbon content higher than 90%. Which contains more than 99% carbon fiber called graphite fiber. The microstructure of carbon fiber is similar to that of synthetic graphite, and it is disordered graphite structure. The spacing between the layers of carbon fiber is about 3.39 to 3.42A, and the carbon atoms in the parallel layers are arranged not as neatly as graphite, and they are connected by the van Edward force between the layers.
Carbon fiber itself is not a composite material, but the matrix of composite material.
