کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5363060 | 1388296 | 2010 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Effects of UV-irradiation on the thermo-mechanical properties of optical grade poly(methyl methacrylate)
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی تئوریک و عملی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
We studied the evolution of the thermo-mechanical properties of poly(methyl methacrylate) (PMMA) materials exposed to ultra-violet (UV) light. To do so we measured important mechanical parameters including the fracture strength, the stress-strain relation, and Young's modulus as a function of the UV-irradiation dose. We concluded that the mechanical properties of PMMA are affected by UV light. The ductility disappears and the strength and strain at rupture strongly decrease (over 30%). The evolution of the Young's modulus is discussed as a function of the cross-linking degree of the materials. Moreover we observed the occurrence of surface damage, which in its turn enhances the degradation of these mechanical parameters.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Surface Science - Volume 256, Issue 9, 15 February 2010, Pages 2927-2933
Journal: Applied Surface Science - Volume 256, Issue 9, 15 February 2010, Pages 2927-2933
نویسندگان
S. Eve, J. Mohr,