A bio-based ionic complex with different oxidation states of phosphorus for reducing flammability and smoke release of epoxy resins
Article
Article Title | A bio-based ionic complex with different oxidation states of phosphorus for reducing flammability and smoke release of epoxy resins |
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ERA Journal ID | 210299 |
Article Category | Article |
Authors | Fang, Fang (Author), Huo, Siqi (Author), Shen, Haifeng (Author), Ran, Shiya (Author), Wang, Hao (Author), Song, Pingan (Author) and Fang, Zhengping (Author) |
Journal Title | Composites Communications |
Journal Citation | 17, pp. 104-108 |
Number of Pages | 5 |
Year | 2020 |
Publisher | Elsevier |
Place of Publication | Netherlands |
ISSN | 2452-2139 |
Digital Object Identifier (DOI) | https://doi.org/10.1016/j.coco.2019.11.011 |
Web Address (URL) | https://www.sciencedirect.com/science/article/pii/S2452213919301767 |
Abstract | Developing high efficient, environmentally friendly and bio-based flame retardants for combustible polymers has gained increasing interest. Herein, a novel highly efficient biomass-derived flame retardant (EHPP@PA) with different oxidation state phosphorus is prepared via neutralization of phytic acid (PA) and phenylphosphonate-based compound (EHPP). Due to synergistic effect between PA and EHPP, the incorporation of EHPP@PA significantly improves the flame-retardant performances of epoxy resin (EP), bringing about 64% reduction in peak heat release rate (pHRR) and 16% reduction in total heat release (THR). Additionally, EP/EHPP@PA also displays excellent smoke suppression performance, exhibiting 45% reduction in peak CO production (pCOP), 61% reduction in peak smoke release production rate (pSPR), and 21% reduction in total smoke production (TSP). The flame-retardant mechanism of EHPP@PA is further investigated, indicating that EHPP@PA effectively exerts flame-retardant effect in the condensed and gaseous phases during combustion. In the condensed phase, phytic acid facilitates the formation of a protective char shield, while in the gas phase, EHPP releases PO· and NO· to quench active radicals and inhibits the combustion. |
Keywords | Epoxy resin; Ionic complexation; Phosphorus containing flame retardant |
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 | Zhejiang University, China |
Wuhan Institute of Technology, 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/q6271/a-bio-based-ionic-complex-with-different-oxidation-states-of-phosphorus-for-reducing-flammability-and-smoke-release-of-epoxy-resins
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