Flexural properties of fly ash (0-80%) filled polypropylene composite

Fly ash (FA) is an industrial waste that is obtained from thermal power plant. Fly ash helps to improve the mechanical properties of base polymer matrices as fillers. The purpose of this study is to conduct the composite consisting of PP and FA and also to test the flexural properties of the composites. In this research, the concentration of fly ash was varied from 0 to 80% by weight. All the composites were prepared using twin screw extruder machine and then test specimens were prepared using injection molding machine. A Universal Testing Machine (UTM) will be used to conduct flexural test. Based on this experiment, the flexural strength and flexural modulus are decreasing as the filler concentration increases due to the agglomeration of particles at the higher concentration of filler and the particle has lower chance to interact with the matrix in the high concentration of filler.