Carbon fibers

The development of c.OXI Carbon oxidation furnace gave the starting signal for entering the carbon fiber segment. In cooperation with experienced partners and research institutes, we have implemented a new innovative low-pressure process for the thermal stabilization of precursor fibers. Thanks to the new technology, decisive savings can be achieved in terms of energy consumption, space requirements and process time compared to currently conventional atmospheric solutions.

In addition to processing conventional PAN fibers, low-pressure oxidation provides excellent results in the stabilization of alternative precursors made from renewable raw materials such as cellulose or lignin. These could be improved significantly in terms of stiffness and tensile strength accordingly and are now able to compete with regular PAN-based carbon fiber (T300 class).

Following this approach, we are currently working on the launch of the ultra-high-temperature furnace c.UHT Carbon, which is designed for graphitization processes at temperatures up to 2600° C. In particular, stiffness and tensile strength of carbon fibers based on alternative precursors can further be improved using this additional process step in order to converge to the performance of fossil-based PAN fibers.

Together with partners and suppliers, we also offer integrated carbon fiber pilot lines. Our competitive technology, well-proven in pilot scale, is characterized by a unique scalability that allows us to support our customers at every stage of commercialization - for both PAN and carbon fibers made of alternative resources.