Abstract
The wear of PTFE filled with layered silicates (LS) was investigated depending on the concentration and chemical nature of the fillers. The influence of these factors on the tribotechnical characteristics and the structure of the surface layers of composites is shown. Using SEM methods, it has been established that the introduction of LS contributes to the formation of a protective layer on the friction surface consisting of worn PTFE particles and a filler. The thickness of the layer does not depend on the concentration of LS, and the structure of the layer varies depending on the chemical composition of the fillers. It is shown that the formation of a protective layer occurs by means of worn particles clustering, uniformly covering the friction surface layer by layer.
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