When the HLB or the surfactant to water ratio increases, the crystals grow from a few micrometers deep under the surface mortar and adopt a very oriented spherulitic
However, the spherulitic
prismatic structures of the Cirratulidae and Sabellidae (Vinn et al.
the original precursor film with normal cooling and thickness of 150 [micro]m) and film drawn to a thickness of 35 [micro]m with low cooling conditions show a typical behaviour of PP of a spherulitic
structure with a clear yielding and a strain hardening.
The prisms are 100-150 [micro]m long and 3-4 [micro]m wide, having a spherulitic
arrangement in some places (Pl.
In the microphotograph of Figure 19, it is possible to compare the spherulitic
crystallinity in the mass and the different one that takes place next to the fibers, separating the two phases.
Coarser-grained recrystallized ovoids, which comprise over half the matrix, likely represent relic spherulitic
at which the morphology changes from spherulitic
The morphology of the layers - as determined by optical and scanning electron microscopy - consisted of a featureless, mostly spherulitic
first layer, followed by a second layer of smaller size spherulites that continued to decrease in size until a minimum was reached somewhere in the middle of the third layer.
Minkoff presented a series of models illustrating the eutectic growth of flake, compact and spherulitic
The lamellae may also form spherulitic
structures as a consequence of the thermal limitations imposed during the casting process and the subsequent annealing.
0 [micro]m) with a spherulitic
prismatic ultrastructure (Fig.
16) Darker regions in phase images correspond to amorphous polymer domains while lighter areas are indicative of crystalline chain fold spherulitic