Miscibility and compatibilization of poly(trimethylene terephthalate)/acrylonitrile–butadiene–styrene blends
| Autor: | Yong-Liang Yu, Hoe H. Chuah, Joong Hee Lee, John M. Rhee, Nam Hoon Kim, Mei-Ling Xue |
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| Rok vydání: | 2007 |
| Předmět: |
Materials science
Polymers and Plastics Acrylonitrile butadiene styrene Organic Chemistry General Physics and Astronomy Epoxy Dynamic mechanical analysis Compatibilization Miscibility chemistry.chemical_compound Differential scanning calorimetry chemistry visual_art Materials Chemistry visual_art.visual_art_medium Copolymer Composite material Glass transition |
| Zdroj: | European Polymer Journal. 43:3826-3837 |
| ISSN: | 0014-3057 |
| DOI: | 10.1016/j.eurpolymj.2007.06.048 |
| Popis: | Poly(trimethylene terephthalate)/acrylonitrile–butadiene–styrene (PTT/ABS) blends were prepared by melt processing with and without epoxy or styrene–butadiene–maleic anhydride copolymer (SBM) as a reactive compatibilizer. The miscibility and compatibilization of the PTT/ABS blends were investigated by differential scanning calorimetry (DSC), dynamic mechanical analysis (DMA), capillary rheometer and scanning electron microscopy (SEM). The existence of two separate composition-dependent glass transition temperatures (Tgs) indicates that PTT is partially miscible with ABS over the entire composition range. In the presence of the compatibilizer, both the cold crystallization and glass transition temperatures of the PTT phase shifted to higher temperatures, indicating their compatibilization effects on the blends. The PTT/ABS blends exhibited typical pseudoplastic flow behavior. The rheological behavior of the epoxy compatibilized PTT/ABS blends showed an epoxy content-dependence. In contrast, when the SBM content was increased from 1 wt% to 5 wt%, the shear viscosities of the PTT/ABS blends increased and exhibited much clearer shear thinning behavior at higher shear rates. The SEM micrographs of the epoxy or SBM compatibilized PTT/ABS blends showed a finer morphology and better adhesion between the phases. |
| Databáze: | OpenAIRE |
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