Jz. Liang et al., Effects of filler content and surface treatment on drop-weight dart impactfracture behaviour of glass bead-filled polypropylene binary composites, J REINF PL, 19(9), 2000, pp. 680-688
The effects of A-glass bead content and its surface treatment on the drop-w
eight dart impact fracture behaviour of the filled polypropylene (PP) binar
y composites at room temperature have been investigated. For the uncoated f
iller filled system (PP/3000U), the maximum impact force (F-max) and the cr
ack propagation energy (E-pc) vary gently with the volume fraction (phi(f))
while for the system filled with coated fillers with silane coupling agent
(PP/3000), F-max and E-pc Values reach minimum at around phi(f) = 15%. The
impact fracture energy (E-dc) and crack initiation energy (E-ic) for both
the composites increase with increasing phi(f) when phi(f) is greater than
15%. The influence of the filler surface treatment on E-dc and E-ic of the
composites is irregular. Furthermore, the impact fracture morphology of the
specimens has been observed and analyzed.