Synthesis and tribological testing of poly(methyl methacrylate) particles containing encapsulated organic friction modifier
2018; Elsevier BV; Volume: 124; Linguagem: Inglês
10.1016/j.triboint.2018.04.009
ISSN1879-2464
AutoresKaren Mitchell, Anne Neville, Gary M. Walker, Michael R. Sutton, Olivier J. Cayre,
Tópico(s)Brake Systems and Friction Analysis
ResumoThe tribological behaviour of polymer particles containing an encapsulated, organic friction modifier (FM) is presented. Particles comprising of a poly (methyl methacrylate) (PMMA) shall and a methanol core, into which FM was dissolved, were produced via a dispersion polymerization producing a core-shell morphology. The inclusion of these particles dramatically increased the overall concentration of FM which could be blended into dodecane. The tribological behaviour of the particles produced, both with and without encapsulated FM, was tribologically tested in pure dodecane. The addition of as little as 1.5 wt% particles was found to decrease the friction coefficient and measured wear volumes below those for dodecane saturated with FM. Data suggests that the FM delivery method may be dominated by a bursting mechanism.
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