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Multifunctional nanocomposites are increasingly needed for applications requiring prescribed sets of physical and chemical properties. Polytetrafluoroethylene (PTFE) is a popular solid lubricant due to its low friction coefficient, high chemical inertness, high thermal range and biocompatibility, but its use is limited by high rates of wear. Low loadings of nanoparticle fillers have reduced PTFE wear...
A fluorosilane nanoparticle surface treatment of alumina nanoparticles was studied to test a hypothesis that reduced surface energy would improve dispersion and extend wear resistance of polytetrafluoroethylene (PTFE) to trace nanoparticle loadings. Dry sliding wear tests were performed on PTFE nanocomposites with 0.00, 0.13, 0.50 and 1.00% untreated and treated 40nm α phase alumina nanoparticles...
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