کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
817966 1469429 2014 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Fracture toughness analysis of O-POSS/PLA composites assessed by essential work of fracture method
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی (عمومی)
پیش نمایش صفحه اول مقاله
Fracture toughness analysis of O-POSS/PLA composites assessed by essential work of fracture method
چکیده انگلیسی

Essential work of fracture (EWF) method was employed to investigate the effect of the octavinylisobutyl based polyhedral oligomeric silsesquioxane (O-POSS) addition in poly(lactic acid) (PLA) matrix on the fracture behavior of O-POSS/PLA composites. The 2 mm thick rectangular shaped PLA-matrix composites containing various weight ratios of O-POSS were injection molded after processing in a twin-screw extruder. Constant deformation rate tensile tests at room temperature were performed on double edge notched tensile (DENT) specimens with various ligament lengths. It was found that the addition of O-POSS to PLA improved the toughness. It was observed that a greater energy consumed after the maximum load reached on load–displacement curves for the composites. Optimum additive value was obtained at 7 wt% O-POSS.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Composites Part B: Engineering - Volume 56, January 2014, Pages 527–535
نویسندگان
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