TY - JOUR
T1 - Effects of filler content and size on drop-weight dart impact fracture behavior of glass bead-filled polypropylene composites
AU - Liang, J. Z.
AU - Li, R. K Y
AU - Tjong, S. C.
PY - 2000/5
Y1 - 2000/5
N2 - Three sizes of A-glass beads, 6000 (4 μm), 3000 (35 μm), and 1922 (219 μm), were chosen in this work to identify the effects of filler content and size on the drop-weight dart impact fracture behavior of filled polypropylene (PP) composites at room temperature. At higher filler concentration, the values of the maximum impact load and the crack initiation energy for the PP filled with smaller glass beads were higher than those of the unfilled PP and the systems filled with larger glass beads. However, the crack propagation energy of the former was lower than that of the latter. The influence of the filler content and size on the impact fracture energy of these composites was insignificant. Comparatively, the drop-weight dart impact resistance of the systems filled with smaller glass beads was somewhat improved. Furthermore, the impact fracture morphology of the specimens was observed and analyzed. The results indicated that the smaller particles were more beneficial to initiate and increase microcracks in the PP matrix interlayer around them and thus to improve the impact resistance of the composites at high filler concentrations.
AB - Three sizes of A-glass beads, 6000 (4 μm), 3000 (35 μm), and 1922 (219 μm), were chosen in this work to identify the effects of filler content and size on the drop-weight dart impact fracture behavior of filled polypropylene (PP) composites at room temperature. At higher filler concentration, the values of the maximum impact load and the crack initiation energy for the PP filled with smaller glass beads were higher than those of the unfilled PP and the systems filled with larger glass beads. However, the crack propagation energy of the former was lower than that of the latter. The influence of the filler content and size on the impact fracture energy of these composites was insignificant. Comparatively, the drop-weight dart impact resistance of the systems filled with smaller glass beads was somewhat improved. Furthermore, the impact fracture morphology of the specimens was observed and analyzed. The results indicated that the smaller particles were more beneficial to initiate and increase microcracks in the PP matrix interlayer around them and thus to improve the impact resistance of the composites at high filler concentrations.
UR - http://www.scopus.com/inward/record.url?scp=0034188309&partnerID=8YFLogxK
UR - https://www.scopus.com/record/pubmetrics.uri?eid=2-s2.0-0034188309&origin=recordpage
U2 - 10.1177/089270570001300305
DO - 10.1177/089270570001300305
M3 - RGC 21 - Publication in refereed journal
SN - 0892-7057
VL - 13
SP - 241
EP - 250
JO - Journal of Thermoplastic Composite Materials
JF - Journal of Thermoplastic Composite Materials
IS - 3
ER -