Optimization of PTFE/Cu/Al₂O₃ filled PMMA based composites on tribological properties using Taguchi design method

Abstract

The filling combination of polytetrafluoroethylene (PTFE)/Cu/Al2O3 filled poly(methyl methacrylate) (PMMA) based composites aiming at low friction and wear is optimized based on L9(34) by Taguchi method. The worn morphologies of PMMA based composites are analyzed by scanning electron microscopy (SEM). The PTFE transfer film and the wear debris on the steel ball surface are analyzed by SEM and X‐ray spectroscopy. It is observed that the friction and wear of PMMA can be obviously decreased by filling with PTFE, Cu, and Al2O3. PTFE has the most significant but Cu has the negligibly smallest contribution on both the friction coefficient and the wear rate. The lower friction coefficient (<0.2) appears by the combination of the mass ratio of PTFE larger than about 4.5% and the mass ratio of Al2O3 lower than ∼7.5%. The lower wear rate (<5 × 10−5 mm3/Nm) appears by the combination of the mass ratio of PTFE larger than about 5% and the mass ratio of Al2O3 lower than ∼8%, but it does not include that PTFE is greater than about 8.5% and Al2O3 is less than about 1.5%. © 2018 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2018, 135, 46705.

Increasing Wear Resistance of UHMWPE by Loading Enforcing Carbon Fibers: Effect of Irreversible and Elastic Deformation, Friction Heating, and Filler Size

“…Being tightly pressed into the polymer matrix, in the absence of interfacial adhesion, the filler particles enabled increasing this material property by several times. Meanwhile, features of increasing wear resistance due to the load redistribution from the polymer to the harder inclusions were discussed by many authors [44,45]. Loading with the fibers improved mechanical properties but was rarely discussed as a way to increase wear resistance.…”

Study on the Effect of PTFE/Cu Composite Material Preparation Process on Penetration Performance

“…At present, the research on the low-density inert composite liner is focused on the mutual compensation of the mechanical properties between metal and non-metal, so as to maximize the use of the advantages of the two materials. Adding different fillers to the PTFE matrix can effectively improve the mechanical properties of the material and make it exhibit better physical properties than a single material [1][2][3]. At present, most of the research on metal/non-metal liners is about PTFE-based or PTFE/Al-based active energetic materials.…”

Experimentation and optimization of wear behavior on polytetrafluoroethylene composites using response surface methodology and bald eagle search optimization

“…Nowadays, several prediction approaches are also used to predict and validate the experimental outcomes. [39,40,41,42] Jebran et al [43] have optimized the wear and friction behaviors of glass, bronze, and graphite-filled PTFE composite. The experiment was conducted by varying the sliding conditions and working environment, and so forth.…”