کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10141259 | 1646062 | 2018 | 22 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Study of the behavior of biodegradable starch/polyvinyl alcohol/rosin blends
ترجمه فارسی عنوان
بررسی رفتار نشاسته های زیست تخریبی / پیوندی الکل / رزین
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کلمات کلیدی
نشاسته سیب زمینی، پلی وینیل الکل، شکر مخلوط کردن ذوب، ترکیب پلیمر،
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آلی
چکیده انگلیسی
Biodegradable potato starch/PVA samples containing different concentrations of rosin were prepared by melt-mixing in order to study the enhancement of the properties of native starch films. Glycerol and polyvinyl alcohol (PVA) are commonly used as plasticizers of starch. Their relatively low molecular weight (compared with starch) contributes to a good processability. Rosin is a renewable product whose incorporation in the starch/PVA matrix induces processing aid and reinforcing effects. Its relatively high molecular weight might prevent its migration to the surface of the final product. Water content, solubility in water, mechanical properties, microstructure and dynamic mechanical analysis of the samples were studied. The addition of 8% rosin to starch/PVA blends led to tensile strength values higher than 10âMPa and elongation at break values close to 2000%, values comparable to those offered by conventional polymers used in food packaging, for example LDPE. Furthermore, starch compounds have low cost and high biodegradability.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Carbohydrate Polymers - Volume 202, 15 December 2018, Pages 299-305
Journal: Carbohydrate Polymers - Volume 202, 15 December 2018, Pages 299-305
نویسندگان
D. Domene-López, M.M. Guillén, I. Martin-Gullon, J.C. GarcÃa-Quesada, M.G. Montalbán,