Effects of metal chelates on a novel oligomeric intumescent flame retardant system for polypropylene
Article
Article Title | Effects of metal chelates on a novel oligomeric intumescent flame retardant system for polypropylene |
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ERA Journal ID | 1633 |
Article Category | Article |
Authors | Song, Pingan (Author), Fang, Zhengping (Author), Tong, Lifang (Author), Jin, Yongming (Author) and Lu, Fengzhu (Author) |
Journal Title | Journal of Analytical and Applied Pyrolysis |
Journal Citation | 82 (2), pp. 286-291 |
Number of Pages | 6 |
Year | 2008 |
Place of Publication | Netherlands |
ISSN | 0165-2370 |
1873-250X | |
Digital Object Identifier (DOI) | https://doi.org/10.1016/j.jaap.2008.04.008 |
Web Address (URL) | https://www.sciencedirect.com/science/article/pii/S0165237008000600 |
Abstract | A novel oligomeric phosphorus-nitrogen containing intumescent flame retardant, poly(4,4-diamino diphenyl methane-O-bicydicpentaerythritol phosphate-phosphate) (PDBPP), was synthesized and characterized. Effects of metal chelates on flame retardancy of polypropylene (PP)/PDBPP systems were studied and the results showed that the presence of metal chelates considerably enhanced the fire retardant performance as evidenced by the increase of LOI values and a great reduction in peak heat release rate of PP/PDBPP system. Raman spectroscopy, infrared spectroscopy and scanning electron microscopy demonstrated that metal chelates could react with polyphosphoric acid, a decomposition product of PDBPP, to form crosslinked network. Through salt bridges a more compact char layer was formed which was responsible for the improved thermal and flame retardancy properties of PP/PDBPP system. |
Keywords | polypropylene, intumescent flame retardant, metal chelates, flammability |
Contains Sensitive Content | Does not contain sensitive content |
ANZSRC Field of Research 2020 | 401699. Materials engineering not elsewhere classified |
Public Notes | Files associated with this item cannot be displayed due to copyright restrictions. |
Byline Affiliations | Zhejiang A & F University, China |
Zhejiang University, China | |
Institution of Origin | University of Southern Queensland |
https://research.usq.edu.au/item/q50x7/effects-of-metal-chelates-on-a-novel-oligomeric-intumescent-flame-retardant-system-for-polypropylene
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