Depth-sensing indentation tests, performed on the continuous and disperse phase
of the 40 and 60% ESO samples.
Recently, Zborowski and Canevarolo (23) proposed an in-line procedure to probe the deformation/recovery phenomena of disperse phase
droplets in PP/PS dilute mixtures by turbidity in a slit-die attached to a twin-screw extruder.
where [phi] is the volume fraction of disperse phase
, R is the radius of droplets of disperse phase
, and a is the interfa-cial tension and [[eta].
The second one suggests that it be better to choose the graft copolymer with the matrix polymer as the backbone and the disperse phase
polymer as grafts.
As expected, blends containing HDPE show large particles of several micormeter, dispersed phase with large variation of domain size, particles detached from the matrix and absence of surface adhesion of the disperse phase
in the matrix, indicating poor interfacial adhesion (Fig.
The melt viscosity ratio of the dispersed phase to that of the matrix and the viscosity of the matrix are two important factors that control the sizes of the disperse phase
Since this method is based on sophisticated mathematical and geometrical procedures, an image processing technique was applied, which is effective when measuring the extent of disperse phase
The final properties of an immiscible blend are strongly affected by two important factors: the phase morphology of the system and the interactions between the disperse phase
and the matrix.
Moreover, the particle size in the binary blends containing only the compatibilizer specific to that blend's disperse phase
was mainly unaffected when the other compatibilizer was added.
s], reflecting the anisotropy of the disperse phase
microstructure, can be expressed as, (21),
The critical capillary number is a function of the viscosity ratio p and the nature of the flow, where p is the ratio between the viscosity of the disperse phase
and that of the continuous phase:
On the other side, the phase morphologies were analyzed by scanning electron microscopy (SEM) and transmission electron microscopy (TEM), and the composition-structure effects on the disperse phase