3. Results and discussion
3.1. Microstructure characterisation
Figures 1 show the polarized light micrographs of the
SCORIM and CIM specimens of the polymer composites. All
conditions feature a well defined skin-core structure: a central
core surrounded by external layers of the oriented material. In Fig.
1, the mouldings obtained with the first condition (R1) exhibit
thicker and less numerous layers.
These mouldings were produced with the lower melt
temperature (Table 3) and lower St and Sn. Runs 4 feature the
thicker highly oriented external layers obtained under highest St
and Sn parameters at high moulding temperature. These runs
presents well expanded multilayered region.