Tribological Behavior of Carbon Nanotubes Reinforced Acrylonitrile Butadiene Styrene Composites at Elevated Temperature

摘要

Acrylonitrile Butadiene Styrene (ABS) being one of commonly available engineering thermoplastic, possesses good damping property and excellent chemical resistance. ABS composites reinforced with MWCNT have been prepared using melt mixing technique and effect of filler particles on viscoelastic behavior has been studied through DMA tests. Wear resistance and friction coefficient of ABS and its composites have been investigated experimentally by pin-on-disk sliding wear test, under dry condition at room as well as elevated temperature. Wear mechanisms have been identified by studying worn surface using scanning electron microscope. The results showed that pure ABS exhibits adhesive wear; however with addition of carbon nanotubes, wear changes from adhesive to abrasive mode. Also at higher operating condition adhesive wear seems to be main wear mechanism involved. Loading condition at which transition of wear from abrasive to adhesive wear occurred was identified by plotting wear transition and wear mechanism maps.