METHOD FOR OBTAINING TREATED CARBON FIBRES AND POLYMER COMPOSITIONS BASED ON THEM Russian patent published in 2023 - IPC D01F11/14 C03C25/07 C08J5/06 C08L71/10 C08K5/20 

FIELD: structural products using additive techniques.

SUBSTANCE: proposed method for obtaining a treated carbon fibre by applying a treatment mixture of amorphous ether ether ketone (1.0-3.5% by weight) and 1,3-bis(aminoformyl)benzene (3.5-1.0% by weight), to carbon fibre as a solution with a mass concentration of 0.6% in dichloroacetic acid, followed by a step-by-step rise in temperature to 80°C and simultaneous distillation of the solvent, the treated carbon fibre obtained by the proposed method, and a polymer polyether ether ketone composition, which contains 80% by weight of polymer matrix based polyetheretherketone and 20% by weight of the proposed finished carbon fibre.

EFFECT: improvement of physical and mechanical properties of the created polymer polyether ether ketone composition due to introduction of a treating composition, which increases the wettability of the filler and increases the boundary interactions between the filler and the polyether ether ketone matrix.

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