کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1429563 987176 2012 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Morphological, viscoelastic and thermal properties of poly(vinylidene Fluoride)/POSS nanocomposites
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد بیومتریال
پیش نمایش صفحه اول مقاله
Morphological, viscoelastic and thermal properties of poly(vinylidene Fluoride)/POSS nanocomposites
چکیده انگلیسی

Nanocomposites of poly(vinylidene fluoride) and polyhedral oligomeric silsesquioxane were prepared through melt blending. Morphology, viscoelastic and thermal properties were investigated. Up to 1 wt.% the processing conditions were efficient to prevent formation of large POSS agglomerates. In the nanocomposites with higher POSS contents these conditions could not avoid it, because of the strong interaction among POSS molecules. The presence of two different crystalline phases in nanocomposite was evidenced by X-ray diffraction and Fourier Transformed Infra-Red Spectroscopy. The nanocomposite with 5 wt.% content had the highest values for degree of cristallinity. The polyhedral oligomeric silsesquioxane molecules are acting as lubricant in the system, once lower values for storage modulus as well as for viscosity were observed.

Figure optionsDownload as PowerPoint slideHighlights
► Nanocomposites of PVDF and POSS were prepared successfully through melt blending.
► The processing conditions ensure a good POSS dispersion up to 1 wt.%.
► POSS contents higher than 1 wt% induced agglomeration.
► POSS acted as lubricant, since induced reductions in storage modulus and viscosity.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Science and Engineering: C - Volume 32, Issue 2, 1 March 2012, Pages 146–151
نویسندگان
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