| Title |
Effect of cyclic reprocessing on nylon 12 under injection molding: working toward more efficient recycling of plastic waste |
| ID_Doc |
6329 |
| Authors |
Nur-A-Tomal, MS; Pahlevani, F; Handoko, W; Cholake, ST; Sahajwalla, V |
| Title |
Effect of cyclic reprocessing on nylon 12 under injection molding: working toward more efficient recycling of plastic waste |
| Year |
2021 |
| Published |
|
| DOI |
10.1016/j.mtsust.2020.100056 |
| Abstract |
Owing to the limitations that impede traditional recycling technologies, only a small percentage of waste plastic is currently recycled. Most recycling processes create products that are poor in terms of performance and value. To produce high-quality products from plastic waste and bring back these valuable materials to the economy after their end of life, it is important to know the change in polymer properties during cyclic reprocessing. During this study, investigations were conducted to create a profound understanding of the effects of cyclic reprocessing on the properties of nylon 12. First, the flow behavior of molten nylon 12 in the injection mold was studied. Then, optimized processing conditions were established by investigating the tensile and impact strength of molded products. Finally, the influence of cyclic reprocessing on the material was assessed through tensile test, impact test, thermal analysis, X-ray diffractometry, and Fourier transform infrared (FTIR) spectroscopy. The obtained results indicate that nylon 12 could be recycled at least four times without drastically changing its properties. A slight change in the tensile strength, impact strength, glass transition temperature, and percentage of crystallinity was observed as the number of reprocessing cycles increases. Furthermore, no significant variation of FTIR spectra indicated that multiple reprocessing had not changed the molecular structure of nylon 12. Together, the various elements of this research could be helpful in developing more effective and efficient recycling processes for plastic waste. (C) 2020 Elsevier Ltd. All rights reserved. |
| Author Keywords |
Direct transformation; Circular economy; Cleaner production; Waste to valuable products; Sustainability; Environmental friendly |
| Index Keywords |
Index Keywords |
| Document Type |
Other |
| Open Access |
Open Access |
| Source |
Science Citation Index Expanded (SCI-EXPANDED) |
| EID |
WOS:000756334900002 |
| WoS Category |
Green & Sustainable Science & Technology; Materials Science, Multidisciplinary |
| Research Area |
Science & Technology - Other Topics; Materials Science |
| PDF |
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