کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8334590 | 1540269 | 2012 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Enhancement of poly(3-hydroxybutyrate) thermal and processing stability using a bio-waste derived additive
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موضوعات مرتبط
علوم زیستی و بیوفناوری
بیوشیمی، ژنتیک و زیست شناسی مولکولی
زیست شیمی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Enhancement of poly(3-hydroxybutyrate) thermal and processing stability using a bio-waste derived additive Enhancement of poly(3-hydroxybutyrate) thermal and processing stability using a bio-waste derived additive](/preview/png/8334590.png)
چکیده انگلیسی
Poly(3-hydroxybutyrate) (PHB) is a biodegradable polymer, whose applicability is limited by its brittleness and narrow processing window. In this study a pomace extract (EP), from the bio-waste of winery industry, was used as thermal and processing stabilizer for PHB, aimed to engineer a totally bio-based system. The results showed that EP enhanced the thermal stability of PHB, which maintained high molecular weights after processing. This evidence was in agreement with the slower decrease in viscosity over time observed by rheological tests. EP also affected the melt crystallization kinetics and the overall crystallinity extent. Finally, dynamic mechanical and tensile tests showed that EP slightly improved the polymer ductility. The results are intriguing, in view of the development of sustainable alternatives to synthetic polymer additives, thus increasing the applicability of bio-based materials. Moreover, the reported results demonstrated the feasibility of the conversion of an agro-food by-product into a bio-resource in an environmentally friendly and cost-effective way.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Biological Macromolecules - Volume 51, Issue 5, December 2012, Pages 1151-1158
Journal: International Journal of Biological Macromolecules - Volume 51, Issue 5, December 2012, Pages 1151-1158
نویسندگان
Paola Persico, Veronica Ambrogi, Antonio Baroni, Gabriella Santagata, Cosimo Carfagna, Mario Malinconico, Pierfrancesco Cerruti,