METHOD OF PRODUCING POLYTETRAFLUOROETHYLENE-BASED ANTIFRICTIONAL POLYMER COMPOSITE Russian patent published in 2013 - IPC C08J5/16 B82B3/00 C08L27/18 C08K3/04 C08K9/00 

FIELD: chemistry.

SUBSTANCE: invention relates to material science. The method of producing a polytetrafluoroethylene-based antifrictional polymer composite involves preliminary physical and chemical treatment of ultrafine detonation diamond powder, mechanical dispersion of the mixture of powdered polytetrafluoroethylene and ultrafine detonation diamond, pressing and sintering the composite in an inert medium. Physical and chemical treatment of the ultrafine detonation diamond powder involves heating therein in an inert medium at temperature of 700-800°C for 20-30 minutes with continuous removal of gaseous thermal desorption products until removal of oxygen-containing surface groups, characterised by an absorption band in infrared spectra with a maximum in the wave number range of 1730 - 1850 cm^-1.

EFFECT: invention improves tribological properties of the composite and uniformity of its properties on a sample volume.

3 cl, 5 tbl, 5 ex