The friction and wear properties of nylon

The effects of temperature on the friction of nylon are examined at various sliding velocities. Maximum friction values are obtained, but it is found that when specimens slide continuously at various velocities, the magnitude of the maximum friction varies with the velocity, while when specimens slide alternately at 10 and 0.1 mm s^?1, nearly the same maximum value is obtained. In the latter case, the displacement of the friction-velocity curves at various temperatures along the velocity axis can give a master curve while in the former case this is impossible.

The effects of temperature, velocity and load on the wear of nylon are also examined. Minimum values of the wear are obtained in all cases, whereas maximum values of the friction are obtained. The mechanism of such behaviour is discussed.