کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
10732354 1043627 2005 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Electron beam irradiated polyamide-6,6 films-II: mechanical and dynamic mechanical properties and water absorption behavior
موضوعات مرتبط
مهندسی و علوم پایه فیزیک و نجوم تشعشع
پیش نمایش صفحه اول مقاله
Electron beam irradiated polyamide-6,6 films-II: mechanical and dynamic mechanical properties and water absorption behavior
چکیده انگلیسی
Electron beam irradiation of poly(iminohexamethylene-iminoadipoyl) (Polyamide-6,6) films was carried out over a range of irradiation doses (20-500 kGy) in air. The mechanical properties were studied and the optimum radiation dose was 200 kGy, where the ultimate tensile stress (UTS), 10% modulus, elongation at break (EB) and toughness showed significant improvement over the unirradiated film. At a dose of 200 kGy, the UTS was improved by 19%, the 10% modulus by ∼9% and the EB by ∼200% over the control. The dynamic mechanical properties of the films were studied in the temperature region 303-473 K to observe the changes in the glass transition temperature (Tg) and loss tangent (tan δ) with radiation dose. The storage modulus of the film receiving a radiation dose of 200 kGy was higher than the unirradiated film. The water uptake characteristics of the Polyamide-6,6 films were investigated. The water uptake was less for the films that received a radiation dose of 200 and 500 kGy than the unirradiated film. The role of crystallinity, crosslinking and chain scission in affecting the tensile, dynamic mechanical and water absorption properties was discussed.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Radiation Physics and Chemistry - Volume 72, Issue 6, April 2005, Pages 751-757
نویسندگان
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