Model Development of Some Tribological Parameters for Coconut Shell-Reinforced Polyethylene Composites

The response of polyethylene-based coconut shell composite in a simulative test carried out on a pin-on machine been studied. Taguchi experimental plan with the objective of “smaller is better”and the technique of variance were used in the analysis to determine the effect of the applied load (L), sliding distance (S), and motor speed (V) on the coefficient of friction (μ) and wear rate(k) of the composites. The results obtained showed that the effect of L on the μ of the composites was 41.38%, while those of V and S were 9.28% and 4.60%, respectively. Also, the effect of V on k of the composites was 60.14% and those of S and L were 6.38% and 1.95%, respectively. Optimal values of 0.1519 and 2.64 ×10-4mm3N-1m-1 for μ and k, respectively, were obtained at 7N, 400Rev min-1, and 30m. Further, the developed models for μ and k were validated. Hence, it has been suggested that L and V are important parameters in the study
of μ and k for polyethylene composite filled with coconut shell nano fillers.