Evaluation of the Mechanical Characteristics of Brake-pads Produced from Groundnut Shell Composites

Abstract

This research strives to evaluate the mechanical characteristics of brake-pad composites using groundnut shells as reinforcement material, a sustainable and renewable biomass resource. The composites were prepared by combining groundnut shells with a polymer matrix. Various tests were carried out to evaluate the performance of groundnut shell brake pads as compared to conventional asbestos brake pads. From the test conducted, the coefficient of friction for groundnut shell brake pads had an average value of 0.47, slightly higher than that of asbestos brake pads. The test for compressive strength varied between 0.107 MPa and 0.116 MPa; this indicates structural integrity, consistency, and reliability. Shear strength has a peak value of 10.0 MPa. The test for water and oil absorption indicates lower absorption rates, which implies an enhanced bonding between the binder and filler particles and also reduced porosity. Specific gravity tests revealed a value of 1.60 g/cm³ at an average, comparable to asbestos brake pads, and the wear rate test showed a volumetric loss of 2.39 mm³ and a wear rate of 5.69 × 10^-4 mm³/Nm, suggesting satisfactory wear resistance. The results show significant improvements in mechanical properties compared to traditional brake pad materials, indicating the potential of groundnut shell-based composites for automotive applications. These findings suggest that groundnut shell-based composites could be a viable alternative to conventional brake pad materials, offering a sustainable solution for the automotive industry. This research contributes to the advancement of eco-friendly brake pad materials, aligning with the growing demand for environmentally sustainable technologies. The utilization of agricultural waste like groundnut shells also offers a valuable outlet for waste reduction. Overall, this study demonstrates the potential of groundnut shell-based composites for improving brake pad performance while promoting sustainability in the automotive sector.