HIGH-STRESS WEAR STUDIES ON ADDITION OF POLYCARBONATE IN RED MUD FILLED ISOTACTIC POLYPROPYLENE

Effect of addition of polycarbonate (PC) on abrasive wear resistance o f red mud (RM) filled polypropylene (PP) composites has been studied. Different volume fractions of PC have been incorporated in RM filled P P. Structural changes of samples were studied by using X-ray diffracti on technique. Characteristic intensity peaks of PP have been reduced o n addition of polycarbonate. Wear losses at different loads have been evaluated for various blend compositions. Wear loss increased with the increase of PC contents in PP/PC/RM composites up to 30 wt%, thereaft er wear loss decreased due to morphological changes in composites. Eff ect of load variation and sliding distance on wear characteristics of blend composites have been measured and discussed based on the observa tions of worn surfaces.