Effect of morphology on shear viscosity for binary blends of polycarbonate and polystyrene
| Autor: | Hiraoka Tatsuhiro, Misaki Yamaguchi, Masayuki Yamaguchi, Takumi Sako, Yuki Tanaka |
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| Rok vydání: | 2020 |
| Předmět: |
Morphology (linguistics)
Materials science Polymers and Plastics Shear viscosity Polymer blend General Chemistry Surfaces Coatings and Films chemistry.chemical_compound Polycarbonate chemistry Rheology visual_art Materials Chemistry visual_art.visual_art_medium Rheological properties Extrusion Polystyrene Composite material |
| Zdroj: | Journal of Applied Polymer Science. 137:49516 |
| ISSN: | 1097-4628 0021-8995 |
| Popis: | The structure and rheological properties of binary blends of polycarbonate (PC) and polystyrene (PS) were investigated using various PS samples with different molecular weights, namely PS1k (M_w = 1000), PS53k (M_w = 53000), and PS240k (M_w = 240000). The blends with PS53k and PS240k show phase-separated structures, whereas the blend with PS1k is miscible. The shear viscosity decreases greatly on addition of PS53k and PS240k, especially at high shear rates, which would be a great advantage at processing operations. Because the non-linear response occurs in the small strain region for multilayered films of PC and PS240k, the origin of the significant viscosity drop for the phase-separated system is interfacial slippage at the phase boundary. |
| Databáze: | OpenAIRE |
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