Influence of yield strength and toughness on friction and wear of polycarbonate

It was shown that yield strength and toughness did not affect friction and abrasive wear of polycarbonate under several different test conditions. These findings are compared with the usual views in literature upon friction and wear of polymers. There are strong indications that the polymer network of polycarbonate plays an important role in the wear resistance. However, no wear improvement was found with an increase in molecular weight in the range of polycarbonates studied.