Abstract

Abstract In this chapter, the fundamental behavior on the transfer, friction and wear of unfilled PTFE are first briefly surveyed and discussed on the basis of the molecular and morphological structures of PTFE. Secondly, the fundamental behavior on the friction, wear and abrasiveness of PTFE incorporating various fillers are surveyed in detail, mainly on the basis of the work which has been carried out in the author's laboratory, and the effects of various fillers on the friction and wear of PTFE-based composites are described. Thirdly, the effect of fillers are discussed on the basis of the properties of unfilled PTFE and microscopic examinations carried out on the worn surfaces of composites and also on the counterface. Thus, the mechanism of the wear-reducing action of fillers in PTFE are explained. Furthermore, the effects of water lubrication on the friction and wear of PTFE incorporating various fillers are presented and discussed.

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