کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1400825 984660 2009 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Transmission electron microscopy study of phase morphology in polypropylene/ethylene-octene copolymer blends
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آلی
پیش نمایش صفحه اول مقاله
Transmission electron microscopy study of phase morphology in polypropylene/ethylene-octene copolymer blends
چکیده انگلیسی

Blends of polypropylene (PP) and ethylene-octene copolymers (EOC) were investigated by transmission electron microscopy (TEM) and by differential scanning calorimetry (DSC). The EOC contained 28, 37, 40 or 52 wt% of octene. Only the 50/50 PP/EOC ratio was used for all blends. None of the blends was fully miscible, there was always two-phase morphology. TEM observation followed by image analysis by ImageJ software revealed that the largest particles were in blend containing EOC-28 and the smallest were in blend with EOC-52. The coarsening rate at 200 °C was evaluated by TEM. The glass transition temperature (Tg) shift indicated partial miscibility. Partial miscibility was then confirmed by direct observation of bright PP lamellae in EOC dark phase.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: European Polymer Journal - Volume 45, Issue 5, May 2009, Pages 1485–1492
نویسندگان
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