METHOD OF STABILISING CARBONACEOUS FIBRE AND METHOD OF PRODUCING CARBON FIBRE Russian patent published in 2011 - IPC D01F9/12 D01F11/16 D01F9/16 D01F9/22 D01F11/10 

FIELD: chemistry.

SUBSTANCE: stabilisation method involves putting carbonaceous fibre into a gaseous medium, its treatment with microwave radiation while simultaneously heating the gaseous medium. In a special case, the fibre is put into a working chamber containing a gaseous medium, heating the gaseous medium by heating the chamber (its walls) while simultaneously treating the fibre with microwave radiation. The method of producing carbon fibre involves at least a stabilisation step and carbonising the fibre. Precursor stabilisation is carried out using the method described above. The fibre can undergo further graphitation after carbonisation. Complex treatment with microwave radiation can be carried out while simultaneously heating the medium in which the fibre is put in order to carry out carbonisation/graphitation.

EFFECT: shorter time for stabilising precursor fibre, which results in low power consumption and high efficiency of the process of producing carbon fibre.

11 cl