کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7606507 | 1492949 | 2017 | 26 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Properties and mechanisms of different guanidine flame retardant wood pulp paper
ترجمه فارسی عنوان
خواص و مکانیزم های کاغذ پالپ چوب عقب انداز گوانیدین مختلف
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کلمات کلیدی
مقاله خمیر چوب، سلولز، بازدارنده شعله، نمک گوانیدین،
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آنالیزی یا شیمی تجزیه
چکیده انگلیسی
In the present paper, two different guanidine salt flame retardants including guanidine phosphate (GP) and guanidine sulfamate (GS) were employed to flame-retard wood pulp paper (WPP), respectively. Both vertical flame test and microscale combustion calorimetric (MCC) analysis showed that GP-WPP exhibited much higher flame retardant efficiency as compared to GS-WPP. Their different mechanisms were investigated through thermogravimetric analysis (TGA), scanning electron microscope (SEM), energy dispersive spectrometer (EDS), and pyrolysis-gas chromatography/mass spectrometry (Py-GC/MS). It was concluded that the volatilization of the acid anhydride of GS in high temperature range weakened the catalytic charring effect. In contrast, involatile phosphides decomposed by GP could sustainably increase the acidity of the system, and meanwhile react with some N-containing intermediate decomposition products from the guanidine to produce stable N-P compounds. Hence, it can more effectively promote the formation of the char layer as well as the flame retardant efficiency.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Analytical and Applied Pyrolysis - Volume 128, November 2017, Pages 224-231
Journal: Journal of Analytical and Applied Pyrolysis - Volume 128, November 2017, Pages 224-231
نویسندگان
Ning Wang, Yuansen Liu, Yuan Liu, Qi Wang,