کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8251328 | 1533473 | 2018 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Prohibition of radiation-induced cross-linking of silica-reinforced silicone foam by oxygenation with H2O2
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
تشعشع
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Prohibition of radiation-induced cross-linking of silica-reinforced silicone foam by oxygenation with hydroxyl radicals generated from radiolysis of H2O2 solution was investigated. The elongation at break of samples irradiated under air decreases monotonically with irradiation, from a control value of 100â¯Â±â¯6.0% to 32.3â¯Â±â¯0.1% for samples exposed with a dose of 500â¯kGy. Compared to samples irradiated in air, the elongation at break of samples irradiated in H2O2 solution shows of a less decrease while that in H2O shows more of a decrease at the same dose. Our results indicate that radiolysis of H2O2 can weaken the increase of crosslink density of silicone foam, while H2O promotes the increase of crosslink density of silicone foam compared to that in air. The property and morphology changes of silicone foam are probably attributed to the irradiation induced crosslinking and radiolysis, the possible mechanisms for which are proposed.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Radiation Physics and Chemistry - Volume 151, October 2018, Pages 261-265
Journal: Radiation Physics and Chemistry - Volume 151, October 2018, Pages 261-265
نویسندگان
Yinyong Ao, Ke Cao, Bo Liu, Pu-Cheng Wang, Hong-Bing Chen, Wei Huang, Peng Jing, Maolin Zhai,