Reduction of Stabilization Time for Pan-Based Carbon Fibres by Thermochemical Pretreatment

Carbon fibres (CF) are characterized by excellent mechanical properties and low specific weight. They offer high lightweight construction potential and can contribute to an increase in energy efficiency and the reduction of CO, emissions in various areas. However, the high cost of CF limits its fields of application. A crucial production step for CF is the thermal stabilization with temperatures up to 280 degrees C and dwell times up to 120 minutes using energy inefficient convection ovens. Thus, the stabilization is a major contributor to the high production costs in order to reduce the production costs, thermal and thermochemical methFund have been analyzed and implemented in a continuous process or technical scaled stabilization oven to reduce the dwell time. The rest 0, regarding the stabilization time and the mechanical properties of the carbon fibres are compared to the standard production process.