کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5182847 1381000 2012 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
The origin of a new transition in dynamic mechanical spectra of multilayer polymeric composite
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آلی
پیش نمایش صفحه اول مقاله
The origin of a new transition in dynamic mechanical spectra of multilayer polymeric composite
چکیده انگلیسی

An additional damping transition at −25 °C, which has never been reported in blended system, is observed in dynamic mechanical spectra (DMS) of isotactic polypropylene/ethylene 1-octene copolymer (iPP/POE) composites with alternating multilayered structure. With increasing layer number, this additional transition becomes larger followed by the decrease of the damping peak of iPP. Through mechanical analysis, the maximum of interfacial stress is found at −25 °C, where the new damping peak appears coincidentally. Hence, the origin of the additional transition is ascribed to the advanced defreezing of chain segments of iPP for balancing difference of the mechanical response between adjacent layers.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Polymer - Volume 53, Issue 12, 25 May 2012, Pages 2519-2523
نویسندگان
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