کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5205708 1502937 2016 11 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Low density polyethylene, expanded polystyrene and expanded polypropylene: Strain rate and size effects on mechanical properties
ترجمه فارسی عنوان
پلی اتیلن چگالی پایین، پلی استایرن گسترش یافته و پلی پروپیلن گسترش یافته: تاثیر میزان سایز و اندازه بر خواص مکانیکی
کلمات کلیدی
اثرات نرخ تغییر شکل ساختار سازمانی، اندازهی نمونه، پلی اتیلن چگالی کم پلی استایرن گسترش یافته، پلی پروپیلن گسترش یافته،
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آلی
چکیده انگلیسی
Density variation was identified at the sample level, with smaller samples often exhibiting lower density. Expanded Polystyrene demonstrated the highest variability in sample density and corresponding variability in mechanical response, qualitatively supported by observed variations in the macrostructure of the foam. Expanded Polypropylene exhibited variability in density with sample size, and observable variability in the material macrostructure; however, the dependence of the measured mechanical properties on sample size was modest. Low Density Polyethylene was found to have a relatively consistent cell size at the macrostructure level, and the material density did not vary significantly with sample size. In a similar manner, the dependence of measured mechanical properties on sample size was modest. The effect of sample size was identified to be material specific, and it is recommended that this be assessed using sample-specific density measurements and considering different sized samples when testing foam materials.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Polymer Testing - Volume 53, August 2016, Pages 40-50
نویسندگان
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