One-pot scalable fabrication of an oligomeric phosphoramide towards high-performance flame retardant polylactic acid with a submicron-grained structure
Article
Article Title | One-pot scalable fabrication of an oligomeric phosphoramide towards high-performance flame retardant polylactic acid with a submicron-grained structure |
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ERA Journal ID | 4883 |
Article Category | Article |
Authors | Xue, Yijiao (Author), Shen, Mingxia (Author), Zheng, Yifei (Author), Tao, Wenzhu (Author), Han, Yanxin (Author), Li, Weidong (Author), Song, Pingan (Author) and Wang, Hao (Author) |
Journal Title | Composites Part B: Engineering |
Journal Citation | 183, pp. 1-12 |
Article Number | 107695 |
Number of Pages | 12 |
Year | 2020 |
Publisher | Elsevier |
Place of Publication | United Kingdom |
ISSN | 1359-8368 |
Digital Object Identifier (DOI) | https://doi.org/10.1016/j.compositesb.2019.107695 |
Web Address (URL) | https://www.sciencedirect.com/science/article/abs/pii/S1359836819354241 |
Abstract | Last years have witnessed great advances in minimizing the flammability of the polylactic acid (PLA) bioplastic. Unfortunately, to date there remains an urgent lack of a facile strategy to develop highly effective flame retardants for PLA. Herein, we report one-pot scalable fabrication of an oligomeric phosphoramide, phenyl phosphonic piperazine (PPP), via a one-step condensation polymerization. PPP can finely disperse within the PLA matrix showing a submicron-grained structure with a domain size of 100–300 nm. The addition of 3 wt% PPP increases the limiting oxygen index (LOI) of PLA to 32.5 vol%, and a V-0 rating is achieved. Such high flame retardancy is mainly attributed to the free radical quenching, gas dilution and the thermal barrier action of the char layer. Moreover, the PLA/3%PPP composite retains a tensile strength of 55.4 MPa. This work provides a facile and scalable approach to preparing high-performance flame retardant PLA materials. |
Keywords | Polylactic acid (PLA); Submicron-grained structure; Flame retardancy |
Contains Sensitive Content | Does not contain sensitive content |
ANZSRC Field of Research 2020 | 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 |
Wuxi Research Institute of New Materials, China | |
Zhejiang A & F University, China | |
Centre for Future Materials | |
Institution of Origin | University of Southern Queensland |
Funding source | Australian Research Council (ARC) Grant ID DP190102992 |
https://research.usq.edu.au/item/q6276/one-pot-scalable-fabrication-of-an-oligomeric-phosphoramide-towards-high-performance-flame-retardant-polylactic-acid-with-a-submicron-grained-structure
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