کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1657579 1517635 2014 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Mechanical and dynamic-mechanical behavior and morphology of polystyrene/perovskite composites: Effects of filler size
ترجمه فارسی عنوان
رفتار مکانیکی و پویا-مکانیکی و مورفولوژی کامپوزیت پلی استایرن / پروسویت: اثر اندازه پرکننده
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد فناوری نانو (نانو تکنولوژی)
چکیده انگلیسی

Composites based on a commercial grade polystyrene (PS) resin containing non commercial perovskite particles were prepared by melt mixing and analyzed in terms of mechanical properties, dynamic-mechanical behavior and morphology. In particular, with the aim to study the influence of the filler size on the ultimate properties of PS based composites micro- and nano-sized perovskite La0.5Sr0.5MnO3 crystal particles, synthesized by using an efficient and rapid microwave-assisted hydrothermal route, were considered.Measurements of flexural parameters such as modulus and strength by static tests and storage modulus and damping factor by dynamic-mechanical evaluations showed better performance for nanofilled systems with respect to the ones containing micro particles, with the same filler content.Mechanical evidences were explained also by morphological observations from which a different level of filler dispersion seems to be obtained with the organization of perovskite nanosized crystals in superstructures able to support viscoelastic results.


► Microwave-assisted routes are more interesting than other conventional methods.
► Perovskites may modify dielectric, electric and magnetic properties of polymers.
► Physical properties of polymer composites are clearly influenced by perovskite size.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Surface and Coatings Technology - Volume 243, 25 March 2014, Pages 65–70
نویسندگان
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