کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5187015 1381119 2005 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Some aspects of structural electrophysics of irradiated polyethylenes
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آلی
پیش نمایش صفحه اول مقاله
Some aspects of structural electrophysics of irradiated polyethylenes
چکیده انگلیسی

In the case of the insulation polymeric materials, such as polyethylenes, it is of essential interest to understand correlations between structural changes and (di)electric properties. The dielectric behavior of different polyethylenes, low density polyethylene (LDPE), linear low density polyethylene (LLDPE) and high density polyethylene (HDPE), irradiated to different absorbed doses of gamma radiation, was studied through dielectric loss (tan δ) analysis. Dielectric relaxation behavior is related to the changes in the initial structure of different polyethylenes and to the radiation-induced processes of oxidative degradation and crosslinking. Differential scanning calorimetry (DSC), IC spectroscopy and gel measurements were used to determine the changes in the crystal fraction, oxidative degradation and degree of network formation, respectively.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Polymer - Volume 46, Issue 17, 8 August 2005, Pages 6353-6359
نویسندگان
,