METHOD OF OBTAINING THERMALLY STABLE NANOCOMPOSITE POLYETHYLENETEREPHTHALATE FIBRE Russian patent published in 2014 - IPC D01F6/62 D01F1/10 C08J3/00 B82B1/00 C08K3/04 

FIELD: chemistry.

SUBSTANCE: method of obtaining a thermally stable nanocomposite polyethyleneterephthalate fibre due to the modification of an initial polymer with carbon nanotubes, including heating in a thermostatted mixer until melt is obtained, with constant mixing, and the supply of nanotubes to the melt, the polymer hardening, applying it to obtain, in particular, by crushing, granules, placing them into an extruder and formation of fibre, is characterised by the fact, that to melting subjected is a tenth part of the polymer, separated from the total volume, with the supply into it of a water solution of the carbon nanotubes, processed with ultrasound, with further mixing of the obtained hardened polymer granules with the remaining part of the initial polymer.

EFFECT: obtaining the nanocomposite polyethylenetereohthalate fibre with higher indices of thermal stability with minimal expenditures for its production.

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