Friction and Lubrication of Synthetic Fibers

Abstract

Methods and instrumentation are desnibed for determining the frictional properties of continuous filament textile yarns over a wide speed range and for the measurement of antistatic properties. The effect of guide and fiber surface roughness and speed on friction are presented. A discussion of the stick-slip phenomenon is included. It is concluded that in analogy with metal lubrication distinct differences in the frictional behavior of synthetic fibers exist under boundary, semi boundary, and hydrodynamic conditions. The data support the contention that intermittent contacts between fiber and substrate exist in the houndary region, whereas a continuous fluid film separates fiber from substrate in the hydrodynamic region.