Abstract

Abstract In this study, experiments are carried out for a set of Linz-Donawith (LD) sludge filled polypropylene composites by fabricating them through compression molding technique to find out their mechanical and erosion wear behaviour under controlled laboratory conditions. Taguchi’s experimental design is used to conduct the erosion wear trials on the fabricated polypropylene-LD sludge composite samples as per ASTM standard. Confirmation experiment is carried out to validate the conclusions drawn during Taguchi’s analysis. Results obtained from this analysis reveal that the impact velocity and the filler content are the most predominant factors influencing the erosion rate of the composite. Mechanical characterization of the composites under this investigation reveals that the trends observed in regard to the compressive strengths are quite different from those obtained in the case of tensile strength variations with the filler loading. It is also observed that these LD sludge filled composites show improved micro-hardness.

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