Abstract
The investigation focuses on the effect of silicon particles (Si) and phosphorus-based flame retardants on the flame retardancy of epoxy resins. The flame-retardant properties have been studied by limiting oxygen index, vertical burning test, cone calorimeter test and micro-combustion calorimeter. The results demonstrate that Si, FR and APP can greatly improve the flame-retardant and thermal properties. It is found that the addition of Si/APP/FR can promote the formation of stable char layers, indicating the condensed-phase effect of the flame retardants.
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Acknowledgements
This work was supported by the Natural Science Foundation of China (Nos. 21704111, 21472241), Natural Science Foundation of Hebei Province (Nos. E2016507032, E2016507027) and Hebei Science and Technology Project (17271221).
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Lu, L., Zeng, Z., Qian, X. et al. Thermal degradation and combustion behavior of flame-retardant epoxy resins with novel phosphorus-based flame retardants and silicon particles. Polym. Bull. 76, 3607–3619 (2019). https://doi.org/10.1007/s00289-018-2567-8
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DOI: https://doi.org/10.1007/s00289-018-2567-8