Scratch resistance of modified polymethylmethacrylate nanocomposites
A. Arribas, M.D. Bermúdez, F. Carrion, C. Espejo, E. Martínez-López and J. Sanes, Universidad Politécnica de Cartagena, Spain
Single-walled carbon nanotubes (NT) and singlewalled carbon nanotubes modified (NTm) by the room-temperature ionic liquid 1-octyl, 3-methylimidazolium tetrafluoroborate ([OMIM]BF4), were added in a 1 wt.% to polymethylmethacrylate (PMMA) and processed by extrusion and injection moulding to obtain PMMA+NT and PMMA+NTm, respectively. Friction coefficients and abrasive wear of PMMA and PMMA nanocomposites from penetration depth, residual depth and viscoelastic recovery were determined under multiple scratching as a function of the number ...