INIKORI OGHENERUONA IRUOESIRI, IDOWU MICHEAL IFEDAYO, LAWANI OSAYI PRECIOUS, MADUKWE OBINNA STEPHEN, NAPOLEON EMMANUEL OSEMUDIAMWEN

In this study, the fabrication of a hybrid composite abrasive sandpaper using coconut shell and crab shell particles embedded in polyester resin is investigated, aiming to address resource depletion and environmental issues associated with conventional synthetic abrasive materials. The mechanical properties and abrasive behavior of the fabricated composite are investigated through meticulous methodology involving sourcing, cleaning, drying, mechanical processing, and production of abrasive specimens. Varying levels of hardness, compressive strength, density, and water absorption are revealed across different compositions of coconut shell and crab shell. The most optimal properties are demonstrated by Sample 5, with a proportion of 35% coconut shell and 65% crab shell, which exhibits reduced water absorption, enhanced hardness, competitive compressive strength, and favorable density characteristics. Comparative analysis with Garnet sandpaper suggests that the hybrid composite sandpaper samples offer competitive or superior performance. Further research is recommended to optimize composition, utilize advanced characterization techniques, and explore sustainable manufacturing practices to enhance the performance and applicability of hybrid composite abrasive materials.