Study on the Friction Characteristics of Two Polytetrafluoroethylene (PTFE) Coatings

摘要

PTFE is a kind of good self-lubricating materials because of its excellent lubricating performance. In this paper, the friction experiment is conducted to study the tribological properties of sintering and bonding coatings of PTFE. The results show that the friction coefficient of the two coatings increases firstly and then decreases with the increasing in the relative speed, and increases slowly with the increase of load. The bonding coatings of PTFE has shown good lubricating properties in low speed for its large thickness, and sintering coatings has shown good lubricating properties under high load for its strong adhesion strength.