Optimization of SiC Concentration and Process Parameters for a Wear‑Resistant UHMWPE Nancocomposite

摘要

Taguchi methodology was implemented to optimize and evaluate the effect of process parameters such as the applied pressureand time of holding on the tribological properties of ultra-high molecular weight polyethylene (UHMWPE) nanocompositereinforced with different loadings of silicon carbide (SiC) nanoparticles. An L_9 orthogonal array was used to design experimentalmatrix in terms of pressure, holding time, and the loading of SiC. UHMWPE/SiC nanocomposites were synthesizedvia ultrasonication and hot pressing. Pin on disk wear tests were carried out on the composites to evaluate the tribologicalproperties such as specific wear rate and coefficient of friction. Friction and wear response were analyzed using analysisof variance and regression models. The effect of each parameter and optimal process parameters that result in minimumfriction and specific wear rate were determined. The confirmation tests carried out verified the validity of the developedexperimental design model.