When the PAN-based stabilized fiber(PAN-SF) was converted to the carbon fiber, the effect of some of the carbonizing parameters on the structure and properties of the resulting carbon fibers, such as the molecular structure development, element contents, morphology and mechanical properties, was discussed. The results show that the carbonizing temperature, the purity of the inert gas and the de-oil pretreatment of the tiber have a great influence on them.
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