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Abstract
The wear of rigid polyvinyl chloride (PVC), was measured in a pin-on-disk apparatus as a function of PVC average number molecular weight (70 000 and 40 000), steel counterface roughness (0.15 to 1.27 μm Ra), and sliding speed (0.1 to 1.4 m/s). The lower molecular weight PVC had the higher wear at all test conditions except 1.4 m/s speed and 1.27 μm Ra. At this condition, the calculated interface temperature exceeded the glass transition temperature of 74°C for PVC. The wear rate increased for increases in both surface roughness and sliding speed. These results were explained in terms of the increased penetration of the steel asperities into the PVC necessitated by changes in these two factors.
Presented at the 36th Annual Meeting in Pittsburgh, Pennsylvania, May 11–14, 1981
Notes
Presented at the 36th Annual Meeting in Pittsburgh, Pennsylvania, May 11–14, 1981