A Novel Synergistic Flame Retardant of Hexaphenoxycyclotriphosphazene for Epoxy Resin
Article
Article Title | A Novel Synergistic Flame Retardant of |
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ERA Journal ID | 201391 |
Article Category | Article |
Authors | Jiang, Jiawei, Huo, Siqi, Zheng, Yi, Yang, Chengyun, Yan, Hongqiang, Ran, Shiya and Fang, Zhengping |
Journal Title | Polymers |
Journal Citation | 13 (21), pp. 1-15 |
Article Number | 3648 |
Number of Pages | 15 |
Year | 2021 |
Publisher | MDPI AG |
Place of Publication | Switzerland |
ISSN | 2073-4360 |
Digital Object Identifier (DOI) | https://doi.org/10.3390/polym13213648 |
Web Address (URL) | https://www.mdpi.com/2073-4360/13/21/3648 |
Abstract | Hexaphenoxycyclotriphosphazene (HPCP) is a common flame retardant for epoxy resin (EP). To improve the thermostability and fire safety of HPCP-containing EP, we combined UiO66-NH2 (a kind of metal-organic frame, MOF) with halloysite nanotubes (HNTs) by hydrothermal reaction to create a novel synergistic flame retardant (H-U) of HPCP for EP. For the EP containing HPCP and H-U, the initial decomposition temperature (T5%) and the temperature of maximum decomposition rate (Tmax) increased by 11 and 17◦ C under nitrogen atmosphere compared with those of the EP containing only HPCP. Meanwhile, the EP containing HPCP and H-U exhibited better tensile and flexural properties due to the addition of rigid nanoparticles. Notably, the EP containing HPCP and H-U reached a V-0 rating in UL-94 test and a limited oxygen index (LOI) of 35.2%. However, with the introduction of H-U, the flame retardant performances of EP composites were weakened in the cone calorimeter test, which was probably due to the decreased height of intumescent residual char. |
Keywords | Epoxy resin; Flame retardancy; Halloysite nanotubes; Hexaphenoxycyclotriphosphazene; Mechanical properties; Metal-organic frame |
Contains Sensitive Content | Does not contain sensitive content |
ANZSRC Field of Research 2020 | 401609. Polymers and plastics |
Byline Affiliations | NingboTech University, China |
Zhejiang University, China |
https://research.usq.edu.au/item/yyxy4/a-novel-synergistic-flame-retardant-of-hexaphenoxycyclotriphosphazene-for-epoxy-resin
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