کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5202610 | 1381905 | 2011 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Influence of phosphorus valency on thermal behaviour of flame retarded polyurethane foams
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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 phosphorus valency on thermal behaviour of flame retarded polyurethane foams Influence of phosphorus valency on thermal behaviour of flame retarded polyurethane foams](/preview/png/5202610.png)
چکیده انگلیسی
The results show that phosphorus flame retardants which significantly lose weight at temperatures lower than those of neat PU foams act in the gas phase irrespective of their valency: indeed, they are completely volatilized before polymer decomposition starts and thus no interaction between flame retardant and polymer can be expected. The effect of phosphorus oxidation state becomes important when flame retardant decomposition takes place in the same temperatures range as neat polymer. In this case, it seems that at lower P oxidation state (+1) a combined gas and solid phase action takes place while at higher P oxidation state (+5) only solid phase action was observed.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Polymer Degradation and Stability - Volume 96, Issue 8, August 2011, Pages 1455-1461
Journal: Polymer Degradation and Stability - Volume 96, Issue 8, August 2011, Pages 1455-1461
نویسندگان
A. Lorenzetti, M. Modesti, S. Besco, D. Hrelja, S. Donadi,