Composites are defined as mixture of two or more ingredients where one is called as matrix (larger in quantity) and other is called reinforcement (smaller in quantity). Now a days research is concentrated towards various methods of making biodegradable composites where either reinforcement or matrix are biodegradable or both are biodegradable. Composites have so many applications in industrial as well as commercial use due to their low weight to strength ratio that attracted the automobile manufacturers to use these materials in cars which in turn increases the efficiency as well as reduce the cost of the automobile. In this paper effort has been made to investigate various process of manufacturing composites manufactured from banana fibers using different matrix preferably PLA (Polylactic Acid). The methods of improving the bonding between the reinforcement and matrix, effect of fiber orientation, size of the fibers and percentage reinforcement has been studied.
Single screw extrusion is one of the key operations in polymer handling and is likewise a key segment in numerous other preparing operations. There are many process parameters for single screw extruder namely, dies temperature, barrel temperature, screw speed and composition. These parameters and their interaction have been investigated by different researcher for better quality outcomes. The present work studies the influence of three main process parameter namely, die temperature, barrel temperature and screw speed on the mechanical properties of Nylon6 (M-28RC grade) rods (as per ASTM standard) for the applications like Fishing rod, Carry bag handles, Holding Fan rods etc. The critical process parameters were optimized using Taguchi L9 OA and ANOVA variance for achieving high tensile strength and %elongation. Further, the optimized results have been investigated using ANSYS FLUENT 15.0 (CFD). The results of the study reveal that screw speed is the most contributing factor to control tensile strength and %elongation, the least contributing factor is barrel temperature. The effect of process parameters on the die of single screw extruder were investigated using CFD analysis.
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