Flame retardant and mechanically tough poly(lactic acid) biocomposites via combining ammonia polyphosphate and polyethylene glycol
Article
Article Title | Flame retardant and mechanically tough poly(lactic acid) biocomposites via combining ammonia polyphosphate and polyethylene glycol |
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ERA Journal ID | 210299 |
Article Category | Article |
Authors | Sun, Yiqi (Author), Sun, Shuai (Author), Chen, Lei (Author), Liu, Lina (Author), Song, Pingan (Author), Li, Wei (Author), Yu, Youming (Author), Lu, Fengzhu (Author), Qian, Jun (Author) and Wang, Hao (Author) |
Journal Title | Composites Communications |
Journal Citation | 6 |
Number of Pages | 5 |
Year | 2017 |
Publisher | Elsevier |
Place of Publication | United States |
ISSN | 2452-2139 |
Digital Object Identifier (DOI) | https://doi.org/10.1016/j.coco.2017.07.005 |
Web Address (URL) | https://www.sciencedirect.com/science/article/abs/pii/S2452213917300335 |
Abstract | Although the flammability of biodegradable poly(lactic acid) (PLA) has been effectively addressed so far, the resultant flame retardant PLA still displays a high brittleness, extremely restricting its wide applications in electrical, automobile and aerospace fields. In this work, we have demonstrated the fabrication of flame retardant and tough PLA composites by combining ammonia polyphosphate (APP) and poly(ethylene glycol) (PEG) with a molecular weight of 20,000 via the melt-blending strategy. The results show that the peak heat release rate of PLA can reduce by 14% in cone tests and a V-0 rating is achieved in vertical burning tests by adding 7 wt% of APP and 14 wt% PEG. Moreover, such PLA composite shows a high strain at break of 280% and impact strength of 14.9 kJ/m2, respectively increasing by thirty-eight-fold and two-fold relative to the PLA bulk. The results strongly indicate that flammability and brittleness of the PLA are strikingly reduced. This work provides an integrated strategy for creating advanced green polymer composites with exceptional flame resistance and toughness. |
Keywords | flame retardancy; toughness; polylactic acid; ammonia polyphosphate; poly(ethylene glycol) |
Contains Sensitive Content | Does not contain sensitive content |
ANZSRC Field of Research 2020 | 340399. Macromolecular and materials chemistry not elsewhere classified |
Public Notes | Files associated with this item cannot be displayed due to copyright restrictions. |
Byline Affiliations | Zhejiang A & F University, China |
Harbin Institute of Technology, China | |
Hunan University, China | |
School of Mechanical and Electrical Engineering | |
Institution of Origin | University of Southern Queensland |
https://research.usq.edu.au/item/q45x0/flame-retardant-and-mechanically-tough-poly-lactic-acid-biocomposites-via-combining-ammonia-polyphosphate-and-polyethylene-glycol
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