INSTITUTO DE TECNOLOGIA EN POLIMEROS Y NANOTECNOLOGIA
Unidad Ejecutora - UE
Mechanical behavior of fibers and films based on PP/quartz composites
E. PEREZ; C. J. PÉREZ; C. BERNAL; A. GRECO; A. MAFFEZZOLI
JOHN WILEY & SONS INC
Lugar: New York; Año: 2015
In this work, films and fibers of Polypropylene based composites reinforced with quartzwere investigated. The materials were processed in a twin screw extruder with fillercontents of 1, 2.5, 5 wt.%. Morphology, thermal properties and mechanical behavior ofthese materials were studied. A homogeneous filler dispersion and particle alignment in theextrusion direction was detected for the films. Thermograms displayed a marginalnucleating effect of quartz particles. Uniaxial tensile tests indicated a high ductility leveland strain hardening for the composites processed as films (in the extrusion direction).Single fiber tests displayed improved tensile properties compared to the same materialsproduced as films. Quasi-static fracture tests showed a completely ductile behavior for thefilms in the extrusion direction. In addition, films fracture toughness was found to increasewith filler content.