Green and Scalable Fabrication of Core–Shell Biobased Flame Retardants for Reducing Flammability of Polylactic Acid
Article
Xiong, Zhengquan, Zhang, Yan, Du, Xiaoyang, Song, Pingan and Fang, Zhengping. 2019. "Green and Scalable Fabrication of Core–Shell Biobased Flame Retardants for Reducing Flammability of Polylactic Acid." ACS Sustainable Chemistry and Engineering. 7 (9), pp. 8954-8963. https://doi.org/10.1021/acssuschemeng.9b01016
| Article Title | Green and Scalable Fabrication of Core–Shell Biobased Flame Retardants for Reducing Flammability of Polylactic Acid |
|---|---|
| ERA Journal ID | 200101 |
| Article Category | Article |
| Authors | Xiong, Zhengquan (Author), Zhang, Yan (Author), Du, Xiaoyang (Author), Song, Pingan (Author) and Fang, Zhengping (Author) |
| Journal Title | ACS Sustainable Chemistry and Engineering |
| Journal Citation | 7 (9), pp. 8954-8963 |
| Number of Pages | 10 |
| Year | 2019 |
| Publisher | American Chemical Society |
| Place of Publication | United States |
| ISSN | 2168-0485 |
| Digital Object Identifier (DOI) | https://doi.org/10.1021/acssuschemeng.9b01016 |
| Web Address (URL) | https://pubs.acs.org/doi/10.1021/acssuschemeng.9b01016 |
| Abstract | The design of flame-retardant biocomposites based on biobased flame retardants (FRs) represents a promising direction for creating a sustainable world. To date, it remains a major challenge to explore a green and scalable strategy for the design of highly effective, biobased FRs for bioplastics, such as polylactic acid (PLA). Herein, we have demonstrated a green, facile fabrication approach for a core–shell-structured biobased flame retardant (APP@CS@PA-Na) via layer-by-layer assembly using water as the assembly media. With electrostatic interactions, APP@CS@PA-Na was prepared by sequential assembly of ammonium polyphosphate (APP) with positively charged chitosan (CS) and then negatively charged phytic acid salt (PA-Na). The addition of APP@CS@PA-Na can enhance both the flame retardancy and the toughness of PLA. With the addition of 10 wt % APP@CS@PA-Na, the resultant PLA composite can pass an UL-94 V-0 rating and meanwhile shows an increased elongation at break by 28.4%, compared with that of neat PLA (8.1%). Through the analysis of the volatile gases and the residues, the flame retardant mechanism of APP@CS@PA-Na in PLA plays the key role in the condensed-phase. This work will broaden the practical application field of PLA, such as in electric and electronic and fibers fields. |
| Keywords | Polylactic acid; Biobased flame retardant; Core−shell structure; Self-assembly |
| 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 | Zhejiang University, China |
| Geely Auto Group, China | |
| Zhejiang A & F University, China | |
| Institution of Origin | University of Southern Queensland |
| Funding source | Australian Research Council (ARC) Grant ID DP190102992 |
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https://research.usq.edu.au/item/q6112/green-and-scalable-fabrication-of-core-shell-biobased-flame-retardants-for-reducing-flammability-of-polylactic-acid
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