Governing effects of melt viscosity on fire performances of polylactide and its fire-retardant systems
Article
Article Title | Governing effects of melt viscosity on fire performances of polylactide and its fire-retardant systems |
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ERA Journal ID | 213031 |
Article Category | Article |
Authors | Yu, Yueming (Author), Xi, Liangdong (Author), Yao, Miaohong (Author), Liu, Linghui (Author), Zhang, Yan (Author), Huo, Siqi (Author), Fang, Zhengping (Author) and Song, Pingan (Author) |
Journal Title | iScience |
Journal Citation | 25 (3), pp. 1-12 |
Article Number | 103950 |
Number of Pages | 12 |
Year | 2022 |
Publisher | Cell Press |
Place of Publication | United States |
ISSN | 2589-0042 |
Digital Object Identifier (DOI) | https://doi.org/10.1016/j.isci.2022.103950 |
Web Address (URL) | https://www.sciencedirect.com/science/article/pii/S2589004222002206 |
Abstract | Extreme flammability of polylactide (PLA) has restricted its real-world applications. Traditional research only focuses on developing new effective fire retardants for PLA without considering the effect of melt viscosity on its fire performances. To fill the knowledge gap, a series of PLA matrices of varied melt flow index (MFI) with and without fire retardants are chosen to examine how melt viscosity affects its fire performances. Our results show that the MFI has a governing impact on fire performances of pure PLA and its fire-retardant systems if the samples are placed vertically during fire testing. PLA with higher MFI values achieves higher limiting oxygen index (LOI) values, and a lower loading level of fire retardants is required for PLA to pass a UL-94 V-0 rating. This work unveils the correlation between melt viscosity and their fire performance and offers a practical guidance for creating flame retardant PLA to extend its applications. |
Keywords | Materials science; Polymer chemistry |
ANZSRC Field of Research 2020 | 401605. Functional materials |
401609. Polymers and plastics | |
401602. Composite and hybrid materials | |
Byline Affiliations | NingboTech University, China |
School of Agricultural, Computational and Environmental Sciences | |
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/q7274/governing-effects-of-melt-viscosity-on-fire-performances-of-polylactide-and-its-fire-retardant-systems
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