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Investigation on pyrolysis of intumescent flame-retardant polypropylene (PP) composites based on synchrotron vacuum ultraviolet photoionization combined with molecular-beam mass spectrometry

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Abstract

The pyrolysis of intumescent flame-retardant polypropylene (PP) composites was studied by synchrotron vacuum ultraviolet photoionization combined with molecular-beam mass spectrometry (SVUV-PIMS). Pyrolytic products of intumescent flame-retardant PP composite formed at certain temperature have been identified by the measurement of photoionization mass spectra at different photon energies. By using SVUV-PIMS, some isomers were identified. Meanwhile, the effect of high-efficient flame-retardant synergist–nanoporous nickel phosphate on pyrolytic products of intumescent flame-retardant PP composite was also studied. By analyzing the pyrolysis of the intumescent flame-retardant PP composites with or without the flame-retardant synergist, the synergistic flame-retardant mechanism was discussed as the condensed-phase flame-retardant mechanism not gas flame-retardant mechanism as expected. The studies in this work are much helpful for further understanding the flame-retardant mechanism of intumescent flame-retardant PP composites.

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Acknowledgements

This work was supported by National Natural Science Foundation of China (Nos. 51574009, 51303004 and U1332134). We greatly thank National Synchrotron Radiation Laboratory for providing a lot of help during this work.

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Authors and Affiliations

  1. Key Laboratory of Coal Mine Safety and Efficient Exploitation of Ministry of Education, School of Energy Resources and Safety, Anhui University of Science and Technology, Huainan, 232001, Anhui, China

    Shibin Nie, Guanglong Dai & Can Zhou

  2. School of Mechanical Engineering, Southeast University, Nanjing, 211189, Jiangsu, China

    Lei Liu

Authors
  1. Shibin Nie
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  2. Lei Liu
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  3. Guanglong Dai
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  4. Can Zhou
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Correspondence to Shibin Nie or Lei Liu.

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Nie, S., Liu, L., Dai, G. et al. Investigation on pyrolysis of intumescent flame-retardant polypropylene (PP) composites based on synchrotron vacuum ultraviolet photoionization combined with molecular-beam mass spectrometry. J Therm Anal Calorim 130, 1003–1009 (2017). https://doi.org/10.1007/s10973-017-6422-1

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  • DOI: https://doi.org/10.1007/s10973-017-6422-1

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