کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5208783 | 1382609 | 2011 | 35 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
An overview of degradable and biodegradable polyolefins
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موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آلی
پیش نمایش صفحه اول مقاله
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چکیده انگلیسی
The use of engineering plastics, especially polyolefins has increased significantly in recent decades largely due to their low cost, good mechanical properties and light weight. However, this increase in usage has also created many challenges associated with disposal and their impact on the environment. This is because polyolefins do not easily degrade in the natural environment and hence the need for degradable polyolefins has become a major topic of research. Degradable polyolefins are designed to retain functionality as a commodity plastic for the required service life but degrade to non-toxic end products in a disposal environment. They are typically designed to oxo-degrade while undergoing changes in chemical structure as a result of oxidation in air, thus causing the breakdown of the molecules into small fragments that are then bioassimilated. This article presents (i) a comprehensive review of the chemistry of additives for the degradation of polyolefins, (ii) a patent and scientific literature summary of technologies including commercially available systems, (iii) the mechanisms of degradation and biodegradation, (iv) testing methods and (v) toxicity.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Progress in Polymer Science - Volume 36, Issue 8, August 2011, Pages 1015-1049
Journal: Progress in Polymer Science - Volume 36, Issue 8, August 2011, Pages 1015-1049
نویسندگان
Anne Ammala, Stuart Bateman, Katherine Dean, Eustathios Petinakis, Parveen Sangwan, Susan Wong, Qiang Yuan, Long Yu, Colin Patrick, K.H. Leong,