A comparison between the wear rate behavior of polyester : reinforced by glass and kevlar fibers

الملخص EN

In this research the wear rate of the polyester reinforced by chopped glass fibers and chopped Kevlar fibers with length (1-2.5 mm) and weight fraction (4, 8, 12, 16 WT %) has been investigated.

A Pin-on-Disc wear testing machine of variable speed has been used.

Flat against flat sliding surfaces under variable working parameters conditions have been tested.

The results of flat sliding surfaces show that the wear rate of the specimens depends heavily on the working condition.

It increases with the increase of the load and sliding speed, and the wear rate decreases with the increase of the weight fraction.

The results also show that the wear rate for polyester reinforced by Kevlar fiber was less than the polyester reinforced by glass fiber.

The optimum value of wear rate was (2.75*10-6 mm3 / mm) happened at weight fraction (16 WT %) when reinforced by Kevlar fibers.