کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7824537 | 1502920 | 2018 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Effects of UV radiation on the friction behavior of thermoplastic polyurethanes
ترجمه فارسی عنوان
اثرات اشعه ماوراء بنفش بر رفتار اصطکاکی پلی اورتان های گرمانرم
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آلی
چکیده انگلیسی
The effects of weathering exposure on unfilled and filled thermoplastic polyurethanes (TPU) materials are described as performed under different humidity conditions. For this purpose, a weathering device was used with UV-A 340â¯nm lamps at a constant temperature of 40â¯Â°C. The effects of environmental (UV and humidity condition) degradation on the frictional properties of TPU materials are presented along with surface analyses to characterize the chemistry of the degradative process. Photooxidative degradation of unfilled polymer leads to deterioration of physical and mechanical properties, which affects its tribological behavior significantly. Due to crosslinking, the stiffness of the material increases, reducing drastically the friction coefficient of unfilled TPUs. The frictional behavior of glass fiber reinforced TPU is less affected by radiation.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Polymer Testing - Volume 70, September 2018, Pages 467-473
Journal: Polymer Testing - Volume 70, September 2018, Pages 467-473
نویسندگان
Géraldine Theiler, Volker Wachtendorf, Anna Elert, Steffen Weidner,