MECHANICAL AND EROSIVE WEAR BEHAVIOUR OF CLAY FILLED POLYAMIDE66/ POLYPROPYLENE NANO COMPOSITES
Keywords:
Clay Filled PA66/PP Nanocomposites, Mechanical Behaviour, Erosive Wear , Worn Surface MorphologyAbstract
The current work presents an attempt to study the mechanical and erosive wear behaviour of clay filled polyamide66/polypropylene (PA66/PP) nanocomposites. PA66/PP blend was used as a reference material. The erosion wear volume loss of the composites have been evaluated for different impingement angles (30–900) and at a constant impingement velocity of 29 m/s. Mechanical properties such as tensile strength, ultimate elongation at fracture and hardness seems to be controlling the erosion wear volume loss of PA66/PP blend and clay filled PA66/PP nanocomposites. Clay filled PA66/PP nanocomposite showed semi-ductile erosion behaviour with peak erosion weight loss at 450 impingement. However, the unfilled PA66/PP blend showed the maximum erosion wear volume loss at 300 impingement. It was observed that the nanosized clay filler helps in improving the erosive wear resistance of PA66/PP blend. Worn surface features of the samples were examined using scanning electron microscope to understand the involved wear mechanisms
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