Nanofilled Thermoplastic–Thermoplastic Polymer Blends

Polyethylene terephthalate/low density polyethylene/titanium dioxide blend nanocomposites: Morphology, crystallinity, rheology, and transport properties

“…At low concentrations of one of the components, droplet‐matrix morphologies are usually obtained . The presence of nanofillers can alter the morphology of the blends, as it has been reported in the literature . Solid particles can refine or coarsen the morphology, stabilize the morphology in the presence of flow or promote co‐continuous morphologies, and so on .…”

“…Interestingly enough, in the last years, the role of fillers as compatibilizers has gained interest. The major advantage of this route is the versatility in comparison with conventional compatibilizer copolymers . There are different approaches to explain the mechanism involved in the refining of the morphology by the action and location of fillers: Reduction of the interfacial tension, changes in the viscosity ratio that can alter the droplet break up balance, and formation of a physical barrier that hinders coalescence, and so on …”

“…4,5 The presence of nanofillers can alter the morphology of the blends, as it has been reported in the literature. [6][7][8][9][10] Solid particles can refine or coarsen the morphology, stabilize the morphology in the presence of flow or promote co-continuous morphologies, and so on. [7][8][9][10] As immiscible polymer blends usually have high interfacial tension that leads to poor adhesion between phases, and thus inadequate final properties, compatibilizers are used to decrease the interfacial tension and improve the properties.…”

“…The major advantage of this route is the versatility in comparison with conventional compatibilizer copolymers. [8][9][10] There are different approaches to explain the mechanism involved in the refining of the morphology by the action and location of fillers: Reduction of the interfacial tension, changes in the viscosity ratio that can alter the droplet break up balance, and formation of a physical barrier that hinders coalescence, and so on. 9,10 For immiscible blends, the rheological properties depend on the type of flow field, interaction between phases and morphology.…”

“…[8][9][10] There are different approaches to explain the mechanism involved in the refining of the morphology by the action and location of fillers: Reduction of the interfacial tension, changes in the viscosity ratio that can alter the droplet break up balance, and formation of a physical barrier that hinders coalescence, and so on. 9,10 For immiscible blends, the rheological properties depend on the type of flow field, interaction between phases and morphology. 4,5,12 The presence of fillers can alter the rheological behavior of the blend, transforming an emulsion like behavior in a suspension or solid like behavior.…”