Loading...
Please wait, while we are loading the content...
Similar Documents
Microstructure, phase inversion and yielding in immiscible polymer blends with selectively wetting silica particles
| Content Provider | Semantic Scholar |
|---|---|
| Author | Domenech, Trystan Velankar, Sachin S. |
| Copyright Year | 2017 |
| Abstract | We examine liquid–liquid–particle ternary blends composed of two immiscible polymers and spherical silica particles across a wide range of compositions. The particles are fully wetted by one of the liquids. Rheological behavior is investigated through continuous shear flow and small/large amplitude oscillatory shear experiments. We observe various percolating structures of the particles bound by capillary interactions, as well as particles-in-drops or drops-in-suspension microstructures. These morphological changes with composition induce significant alteration in a linear viscoelastic response and yielding of the three-phase system. Similarly to the observations in wet granular materials, both the elastic plateau modulus and the yield stress of our ternary system exhibit a maximum as the wetting phase content increases for a fixed particle concentration. We show that this phenomenon is linked to an evolution of the structure from a meniscus-bridged particle network to a selectively filled bicontinuous st. |
| Starting Page | 363 |
| Ending Page | 377 |
| Page Count | 15 |
| File Format | PDF HTM / HTML |
| DOI | 10.1122/1.4975931 |
| Volume Number | 61 |
| Alternate Webpage(s) | http://www2.pitt.edu/~velankar/www/papers/JORDomenech2017.pdf |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
