کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1400171 984533 2007 12 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Miscibility and compatibilization of poly(trimethylene terephthalate)/acrylonitrile–butadiene–styrene blends
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آلی
پیش نمایش صفحه اول مقاله
Miscibility and compatibilization of poly(trimethylene terephthalate)/acrylonitrile–butadiene–styrene blends
چکیده انگلیسی

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.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: European Polymer Journal - Volume 43, Issue 9, September 2007, Pages 3826–3837
نویسندگان
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