Abstract
Delaying flame propagation in the event of a fire can increase the likelihood of preserving life and alleviating property damage. Here, a strategy for flame retardant polymer composite foam is proposed, which enables the improved performance, good formability, and reduced environmental burden while burning. The strategy is to incorporate sylilated nanocellulose into a polyurethane matrix containing a conventional flame retardant, Tris(2-chloroethyl) phosphate (TCEP). This strategy leads to the generation of char layer faster during combustion, resulting in a delayed flame propagation. The limiting oxygen index (LOI) of the samples increased by 28%, and the production rate of toxic gas emission was considerably reduced. The chemical, thermal, mechanical, and morphological analyses were carried out to understand the underlying physics.
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Acknowledgments: This work was supported by GRRC program of Gyeonggi Province (GRRC Dankook2016-B03). In addition, this research was supported by Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education (2018R1D1A1B07049173) and by the Korea government (MSIT) (No. NRF-2018R1A5A1024127).
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Kim, H., Park, J., Minn, K.S. et al. Eco-Friendly Nanocellulose Embedded Polymer Composite Foam for Flame Retardancy Improvement. Macromol. Res. 28, 165–171 (2020). https://doi.org/10.1007/s13233-020-8020-5
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DOI: https://doi.org/10.1007/s13233-020-8020-5