Keyword: «magnesium spinel»

The results of deformation-strength, tribotechnical and structural studies of polymer composite materials (PCM) based on activated polytetrafluoroethylene (PTFE) are presented. It is shown that the addition to PTFE of 10 wt.% activated PTFE leads to an increase in tensile strength and elongation by 20–35%. The influence of the technology of mechanical activation of the polymer matrix and fillers Sibunite and magnesium spinel on the properties of PCM is investigated. The use of activated Sibunite up to 2 wt.% as a filler of the developed polymer matrix leads to an increase in wear resistance by 56 times, activated magnesium spinel up to 2 wt.% by 27 times with indicators of deformation and strength characteristics at the level of the initial PTFE.