کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5205961 1502942 2015 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Observation and modeling of environmental stress cracking behaviors of high crystalline polypropylene due to scent oils
ترجمه فارسی عنوان
مشاهده و مدل سازی رفتارهای ترک خوردگی استرس محیطی از پلی پروپیلن بلوری بالا به علت روغن های معطر
کلمات کلیدی
ترک خوردگی تنش محیطی، نفوذ، پلی پروپیلن بلوری بالا، نفت عطر، تخریب پلیمر،
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آلی
چکیده انگلیسی
Environmental stress cracking (ESC) is a common phenomenon that affects commercially available polymeric materials exposed to liquid agents under external loading, and it is one of the most common causes of their unexpected long-term failure. In this study, ESC behavior of high crystalline polypropylene (HCPP) was studied through modified notched constant tensile load testing using two different scent oils as environmental agents. The relationship between total lifetime of the material and initial stress intensity factor was determined. Despite the similar molecular structures of the scent oils, they caused a remarkable lifetime difference for the material within a certain loading range. Swelling tests were also conducted in order to define diffusion coefficients for the scent oils without any loading. From these results, the diffusion coefficients for the two scent oils into the HCPP were modeled according to the initial stress intensity factor.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Polymer Testing - Volume 48, December 2015, Pages 206-214
نویسندگان
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