• Mahesha A
• Rudresh B M
• Reddappa H N
• Madhu D

The effect of fiber loading on wear and friction behavior of Ramie fiber and Sisal fiber reinforced Polypropylene composites was studied. The impact of sliding pressure and sliding velocity on the wear rate and frictional behavior was investigated. Four material systems were selected for the investigation: Neat Polypropylene (PP), 5 wt. % of Ramie fiber (RF) and Sisal fiber (SF) each (PP/10), 10 wt. % RF and SF (PP/20) and 15 wt. % RF and SF (PP/30). These composites were developed using twin screw extrusion method through melt mix followed by injection molding. The sliding wear behavior of these composites was investigated using ASTM G99 method by varying sliding pressure (25, 50, 75 and 100 N) under the action of sliding velocity 0.5 m/s for a sliding distance of 4000 m. The equal contribution of fiber loading was studied and the experimented results were presented. The results showed that wear volume loss of composites decreases by the reinforcing effect of hybrid fibers. The frictional coefficient decreases with increase in fiber loading. Further, it was observed that the tribological response is a function of sliding pressure and velocity. The wear rate decreases with increase in sliding pressure. The wear response is very much sensitive to sliding velocity rather than sliding pressure. The worn surfaces were studied using SEM images. It was revealed that the critical wear volume loss is due to both matrix wear and fiber wear. Among the composites studied, PP/30 exhibits the better wear resistance.

Polypropylene, Ramie fiber, Sisal fiber, hybrid fibers, sliding wear, friction

"Fiber Loading Response on Wear and Friction Behavior of Polypropylene Natural Hybrid Composites ", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.9, Issue 7, page no.e29-e37, July-2022, Available :http://www.jetir.org/papers/JETIR2207404.pdf

"Fiber Loading Response on Wear and Friction Behavior of Polypropylene Natural Hybrid Composites ", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.9, Issue 7, page no. ppe29-e37, July-2022, Available at : http://www.jetir.org/papers/JETIR2207404.pdf