کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5201839 | 1502913 | 2014 | 11 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Influence of temperature, UV-light wavelength and intensity on polypropylene photothermal oxidation
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آلی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Influence of temperature, UV-light wavelength and intensity on polypropylene photothermal oxidation Influence of temperature, UV-light wavelength and intensity on polypropylene photothermal oxidation](/preview/png/5201839.png)
چکیده انگلیسی
A criterion based on the energy absorbed by photosensitive species was proposed to describe the contribution of UV-light to the initiation of the polypropylene photothermal oxidation whatever the light source. The calculation of this energy was performed using the widely accepted quantum theory. The criterion was then introduced in two different types of analytical models commonly used to describe the combined effects of UV light and temperature on induction time, namely: the reciprocity law and kinetic model. The limitations of both types of analytical models were then investigated: the latter, derived from a realistic mechanistic scheme, was found to be much more relevant than the former, which is presumably valid in a restricted range of light intensities, essentially due to its empirical origin.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Polymer Degradation and Stability - Volume 100, February 2014, Pages 10-20
Journal: Polymer Degradation and Stability - Volume 100, February 2014, Pages 10-20
نویسندگان
Alexandre François-Heude, Emmanuel Richaud, Eric Desnoux, Xavier Colin,