Mechanically robust and flame-retardant polylactide composites based on molecularly-engineered polyphosphoramides
Article
Article Title | Mechanically robust and flame-retardant polylactide composites based on molecularly-engineered polyphosphoramides |
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ERA Journal ID | 4882 |
Article Category | Article |
Authors | Xue, Yijiao (Author), Ma, Zhewen (Author), Xu, Xiaodong (Author), Shen, Mingxia (Author), Huang, Guobo (Author), Bourbigot, Serge (Author), Liu, Xiaoqing (Author) and Song, Pingan (Author) |
Journal Title | Composites Part A: Applied Science and Manufacturing |
Journal Citation | 144, pp. 1-15 |
Article Number | 106317 |
Number of Pages | 15 |
Year | 2021 |
Publisher | Elsevier |
Place of Publication | United Kingdom |
ISSN | 1359-835X |
1878-5840 | |
Digital Object Identifier (DOI) | https://doi.org/10.1016/j.compositesa.2021.106317 |
Web Address (URL) | https://www.sciencedirect.com/science/article/pii/S1359835X21000464 |
Abstract | Intrinsic flammability significantly impedes practical applications of polylactide (PLA), despite many merits. Phosphoramides have shown exceptional flame retardancy efficiency in PLA, but to date it remains a grand challenge to create strong, tough and flame-retardant PLA based on phosphoramides due to lack of fundamental understanding of structure-property correlation. Herein, we design a series of polyphosphoramides (PPDA-x) with tunable structures and compositions. With 1.0 wt% of PPDA-8, tensile strength and toughness of PLA are increased by 11% and 44%, respectively, because of balanced hydrogen-bonding and interfacial tension. Meanwhile, the final PLA achieves a desirable UL-94V-0 rating and a high limited oxygen index (LOI) of ~26.8% because phosphorus contents and interfacial tension govern flame retardancy. This work offers a general methodology for creating robust and flame-retardant polymers by molecularly tailoring flame retardants and shedding light on their structure-property relationship. |
Keywords | Polylactide; Phosphoramides; Mechanical property; Flame retardancy |
Contains Sensitive Content | Does not contain sensitive content |
ANZSRC Field of Research 2020 | 340302. Macromolecular materials |
401605. Functional materials | |
401609. Polymers and plastics | |
401602. Composite and hybrid materials | |
Public Notes | Files associated with this item cannot be displayed due to copyright restrictions. |
Byline Affiliations | Hohai University, China |
Zhejiang A & F University, China | |
Taizhou University, China | |
University of Lille, France | |
Chinese Academy of Sciences, China | |
Centre for Future Materials | |
Institution of Origin | University of Southern Queensland |
Funding source | Australian Research Council (ARC) Grant ID DP190102992 |
Funding source | Australian Research Council (ARC) Grant ID FT190100188 |
https://research.usq.edu.au/item/q6vv1/mechanically-robust-and-flame-retardant-polylactide-composites-based-on-molecularly-engineered-polyphosphoramides
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