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Synergistic effects between iron-graphene and ammonium polyphosphate in flame-retardant thermoplastic polyurethane

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Abstract

This article mainly studies synergistic flame-retardant effects of iron-graphene (IG) and ammonium polyphosphate (APP) in thermoplastic polyurethane (TPU). A high concentration of TPU/IG masterbatch was prepared by solution-blending method, and the TPU/APP/IG composites were prepared by melt-blending method. Then, the synergistic effects between iron-graphene and ammonium polyphosphate in flame-retardant TPU were investigated by limiting oxygen index (LOI), cone calorimeter test, and thermogravimetric/Fourier infrared spectrum (TG-IR), respectively. Remarkably, the combination of 0.25 mass% IG and 9.75 mass% APP can make the LOI value increase by 38.3 %, HRR value decrease by 92.8 %, and SPR value decrease by 72.8 %, etc. TG and TG-IR data reveal that APP and IG improve the thermal stability of samples at high temperature and reduce the production of some toxic gases.

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Acknowledgements

The authors gratefully acknowledge the National Natural Science Foundation of China (Nos. 51106078, 51206084) and the University Research and Development Projects Shandong Province (J14LA13).

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  1. College of Environment and Safety Engineering, Qingdao University of Science and Technology, Qingdao, 266042, Shandong, People’s Republic of China

    Xilei Chen, Cuiyong Ma & Chuanmei Jiao

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  1. Xilei Chen
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Correspondence to Chuanmei Jiao.

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Chen, X., Ma, C. & Jiao, C. Synergistic effects between iron-graphene and ammonium polyphosphate in flame-retardant thermoplastic polyurethane. J Therm Anal Calorim 126, 633–642 (2016). https://doi.org/10.1007/s10973-016-5494-7

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