A combined experimental and theoretical approach to establish the relationship between shear force and clay platelet delamination in melt-processed polypropylene nanocomposites

Morphology, thermal properties and crystallization kinetics of ternary blends of the polylactide and starch biopolymers and nanoclay: The role of nanoclay hydrophobicity

“…Therefore, TEM will be the main tool to determine the fate of the dispersed silicate layers in the PLA-ST blend matrix because it allows a qualitative understanding of the internal structure, spatial distribution of the various phases and defect structure through direct visualization [33]. Table 1) would be preferentially located in the PLA phase.…”

“…Table 1) would be preferentially located in the PLA phase. However, because the clays are not entirely hydrophobic [33,34], it is possible that the relative interfacial tensions were higher with PLA compared with butylated starch, hence the location of intercalated silicate layers within the starch phase in most composites. An alternative explanation for the location of the clays in the starch phase could be based on a difference in the viscosity ratio between the butylated starch phase and the PLA phase.…”

Large scale formation of various highly oriented structures in polyethylene/polycarbonate microfibril blends subjected to secondary melt flow

“…For GAIM pure HDPE, Two-spot pattern is observed in the meridional direction of different molecular orientation in the outer layers, while no molecular orientation appears in the core layer. It demonstrates the typical hierarchical structure in GAIM pure HDPE samples [44]. For CIM microfibril blend, isotropic crystallites exist in the core layer and obvious two-spot pattern of molecular orientation is shown in skin layer.…”

Recent Trends and Future Outlooks in the Field of Clay‐Containing Polymer Nanocomposites

“…[47a] Another important parameter that facilitates the breaking and the peeling process is the gallery spacing between the clay platelets. A recent study by Bandyopadhyay et al showed that for a particular organoclay, the gallery spacing increases with the processing temperature. Thus, the shear stress required for the peeling mechanism remains within the range of shear stress produced in the extruder.…”