کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7786511 1500622 2016 25 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Effect of different polyol-based plasticizers on thermal properties of polyvinyl alcohol:starch blends
ترجمه فارسی عنوان
اثر پلاستیک های مختلف بر پایه پلیول بر خصوصیات حرارتی پلی وینیل الکل: نشاسته مخلوط
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آلی
چکیده انگلیسی
A series of gelatinized polyvinyl alcohol (PVA):starch blends were prepared with various polyol-based plasticizers in 5 wt%, 15 wt% and 25 wt% ratios via solution casting method. The obtained films were analyzed by Fourier transform infrared (FT-IR) spectroscopy, differential scanning calorimetry (DSC) and thermogravimetric analysis (TGA). Remarkable changes have been observed in glass-transition temperature (Tg) and thermal stability of the samples containing varying concentrations of different plasticizers and they have been discussed in detail with respect to the conducted thermal and chemical analyses. The observed order of Tg point depression of the samples containing 15 wt% plasticizer is 1,4-butanediol - 1,2,6-hexanetriol - pentaerythriyol - xylitol - mannitol, which is similar to the sequence of the thermal stability changes of the samples.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Carbohydrate Polymers - Volume 136, 20 January 2016, Pages 441-448
نویسندگان
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