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Influence of Beta-Cyclodextrin Functionalized Tin Phenylphosphonate on the Thermal Stability and Flame Retardancy of Epoxy Composites

Yongming Chen1,2,#, Shuai Huang1,#, Han Zhao1, Ru Yang2, Yining He1, Tianyu Zhao1, Yunlong Zhang1, Qinghong Kong1,*, Shasha Sun3,*, Junhao Zhang3

1 School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang, 212013, China
2 Zhenjiang Electric Power Supply Company, State Grid Jiangsu Electric Power Co., Ltd., Zhenjiang, 212000, China
3 School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang, 212003, China

* Corresponding Authors: Qinghong Kong. Email: email; Shasha Sun. Email: email
# They contributed equally to this work

(This article belongs to this Special Issue: Bio-based Halogen-free Flame Retardant Polymeric Materials)

Journal of Renewable Materials 2022, 10(12), 3119-3130. https://doi.org/10.32604/jrm.2022.019576

Abstract

To enhance the thermal stability and flame retardancy of epoxy resin (EP), beta-cyclodextrin (β-CD) is successfully introduced into the layered tin phenylphosphonate (SnPP), which is incorporated into EP matrix for preparing EP/β-CD@SnPP composites. The results indicate that the addition of β-CD@SnPP obviously improve the thermal stability and residual yield of EP composites at higher temperature. When the amount of β-CD@SnPP is only 4 wt%, EP/4β-CD@SnPP composites pass V-1 rating, and LOI value is up to 30.8%. Meanwhile, β- CD@SnPP effectively suppress the heat release and reduce the smoke production of EP/β-CD@SnPP composites in combustion, and the peak heat release rate (PHRR), total heat release (THR), smoke production rate (SPR) of EP/6β-CD@SnPP composites reduce by 28.4%, 33.0% and 44.8% by comparison with those of pure EP. The good flame retardancy and smoke suppression are ascribed to the synergistic effect of excellent carbon-forming capability and fire retardancy of β-CD@SnPP.

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Cite This Article

Chen, Y., Huang, S., Zhao, H., Yang, R., He, Y. et al. (2022). Influence of Beta-Cyclodextrin Functionalized Tin Phenylphosphonate on the Thermal Stability and Flame Retardancy of Epoxy Composites. Journal of Renewable Materials, 10(12), 3119–3130.



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