P, N-decorated halloysite nanotubes for flame retardancy enhancement of polyamide 6/aluminum diethylphosphinate
Article
Article Title | P, N-decorated halloysite nanotubes for flame retardancy enhancement of polyamide 6/aluminum diethylphosphinate |
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ERA Journal ID | 1691 |
Article Category | Article |
Authors | He, Wentao (Author), Xu, Huahui (Author), Song, Pingan (Author), Xiang, Yushu (Author) and Qin, Shuhao (Author) |
Journal Title | Polymer Degradation and Stability |
Journal Citation | 196, pp. 1-11 |
Article Number | 109847 |
Number of Pages | 11 |
Year | 2022 |
Publisher | Elsevier |
Place of Publication | United Kingdom |
ISSN | 0141-3910 |
0144-2880 | |
1873-2321 | |
Digital Object Identifier (DOI) | https://doi.org/10.1016/j.polymdegradstab.2022.109847 |
Web Address (URL) | https://www.sciencedirect.com/science/article/pii/S0141391022000337 |
Abstract | Flame-retardant functionalized nanomaterials have attracted much research interests due to the combined advantages of organic and inorganic components. In the present study, P, N-decorated halloysite nanotube (MA-PPA@HNT) was prepared via simple steps of phenphosphinic acid intercalation and subsequent electrostatic interaction with melamine. Compared to unmodified HNT, the incorporation of MA-PPA@HNT into polyamide 6 (PA6)/aluminum diethylphosphinic acid (AlPi) composite results in significant improvement of flame retardancy. At equal HNT loading of 2wt%, the UL-94 rating grade of PA6/AlPi/MA-PPA@HNT composite was V-0, whereas that of PA6/AlPi/HNT composite V-2. And compared with PA6, there is a decrease of peak heat release rate (pHRR) and total heat release (THR) by 72.6% and 17.4%, respectively. The flame retardant mechanism was analyzed by cone calorimetry, gas volatility and characterization of char residues. It is considered that MA-PPA@HNT plays the critical role of promoting the formation of P, Si-rich intumescent char in the condensed phase and enhancing the barrier effect for heat and mass transfer. |
Keywords | Halloysite nanotube; Phenphosphinic acid; Melamine; Flame retardancy; Polyamide |
ANZSRC Field of Research 2020 | 401605. Functional materials |
401609. Polymers and plastics | |
401602. Composite and hybrid materials | |
Byline Affiliations | Huanggang Normal University, China |
Centre for Future Materials | |
Chinese Academy of Sciences, China | |
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/q7243/p-n-decorated-halloysite-nanotubes-for-flame-retardancy-enhancement-of-polyamide-6-aluminum-diethylphosphinate
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