کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
9817886 1518772 2005 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Mechanical, thermal, rheological and morphological behaviour of irradiated PP/HA composites
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد سطوح، پوشش‌ها و فیلم‌ها
پیش نمایش صفحه اول مقاله
Mechanical, thermal, rheological and morphological behaviour of irradiated PP/HA composites
چکیده انگلیسی
Hydroxyapatite (HA) reinforced polypropylene (PP) composites are being developed as bone graft materials. In this research, the effect of γ irradiation on mechanical, rheological, thermal and morphological behaviour of PP-HA composites was studied. The melt flow index of polymer increased markedly when it was exposed to radiation. This is indicative of chain scission reaction as the predominant process. During the tensile testing, the composites exhibited brittle behaviour, showing no fluency point. Elongation at break showed a tendency to decrease with the increase in radiation dose while stress at break did not show significant variation with radiation dose. High HA content (>20%) and radiation dose (25 kGy) had significant influence on thermal stability.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms - Volume 236, Issues 1–4, July 2005, Pages 531-535
نویسندگان
, , , , , ,