METHOD OF PRODUCING CARBON FIBRE MATERIALS Russian patent published in 2016 - IPC D01F9/16 

FIELD: chemistry.

SUBSTANCE: invention relates to chemical engineering of fibre materials and a method of producing carbon fibre materials. Initial cellulose fibrous material is treated with a catalyst solution containing dibasic ammonium phosphate, ammonium chloride and sodium chloride, followed by drying of fibrous material, its thermally-relaxing, carbonization and graphitation at high temperature. Before the drying stage the initial material is further treated with solution containing nano-dispersed particles of metal, selected from group: silver, iron, copper, nickel, cobalt, in amount of 0.05-3.5 wt%, with particle size 1-50 nm. Material containing chemical elements in an amount of (ppb, 1×10^-9 g/l): arsenic 15-60, lead 200-1,000, cadmium 15-250, chrome 50-250, cobalt 15-100, copper 100-1,200, nickel 20-250, mercury 0.002-0.1 is used as an initial material. Further treatment is carried out in presence of a stabiliser, nano-dispersed particles.

EFFECT: invention provides high strength of synthesized carbon fibre.

3 cl, 5 tbl, 11 ex