A benzimidazolyl-substituted cyclotriphosphazene and its application in benzoxazine: Curing behaviors, thermal properties, and fire safety
Article
Wu, Feifan, Wang, Jun, Wang, Jingsheng, Chen, Kaiwen, Yang, Shuang, Huo, Siqi and Wang, Hao. 2023. "A benzimidazolyl-substituted cyclotriphosphazene and its application in benzoxazine: Curing behaviors, thermal properties, and fire safety." Journal of Polymer Science. 61 (5), pp. 422-431. https://doi.org/10.1002/pol.20220586
Article Title | A benzimidazolyl-substituted cyclotriphosphazene and its application in benzoxazine: Curing behaviors, thermal properties, and fire safety |
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ERA Journal ID | 1678 |
Article Category | Article |
Authors | Wu, Feifan, Wang, Jun, Wang, Jingsheng, Chen, Kaiwen, Yang, Shuang, Huo, Siqi and Wang, Hao |
Journal Title | Journal of Polymer Science |
Journal Citation | 61 (5), pp. 422-431 |
Number of Pages | 10 |
Year | 2023 |
Publisher | John Wiley & Sons |
Place of Publication | United States |
ISSN | 0887-624X |
0887-6266 | |
1099-0488 | |
1099-0518 | |
2642-4150 | |
2642-4169 | |
Digital Object Identifier (DOI) | https://doi.org/10.1002/pol.20220586 |
Web Address (URL) | https://onlinelibrary.wiley.com/doi/10.1002/pol.20220586 |
Abstract | In this study, a well-designed benzimidazolyl-substituted cyclotriphosphazene (BICP) was used as a versatile additive to enhance the integrated performances of bisphenol A-aniline based benzoxazine (BA-a). Our results showed that the BA-a/BICP systems possessed lower curing temperature than virgin BA-a due to the catalytic action of tertiary amines in BICP. Moreover, the thermal resistance of BA-a/BICP thermosets was better than that of BA-a thermoset because of the rigid structure and high thermal stability of BICP. The introduction of BICP significantly enhanced the fire safety of BA-a. For instance, the limiting oxygen index and UL-94 rating of BA-a/BICP-11 sample with 11 wt% of BICP were up to 35.2% and V-0. Compared with BA-a, the total smoke production and peak smoke production rate of BA-a/BICP-17 sample with 17 wt% of BICP were reduced by 36.5% and 39.3%, respectively. The improved fire safety of BA-a/BICP sample was mainly due to the condensed-phase effect of BICP. This work provides a simple strategy for the development of advanced benzoxazine resins with low curing temperature, great thermal properties, and superior fire safety. © 2022 Wiley Periodicals LLC. |
Keywords | benzoxazine resin |
ANZSRC Field of Research 2020 | 401609. Polymers and plastics |
Public Notes | File reproduced in accordance with the copyright policy of the publisher/author. |
Byline Affiliations | Wuhan University of Technology, China |
NingboTech University, China | |
Centre for Future Materials |
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