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Reducing the flammability of ultra-high-molecular-weight polyethylene by triphenyl phosphate additives

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Combustion, Explosion, and Shock Waves Aims and scope

Abstract

The thermal degradation and combustion of ultra-high-molecular-weight polyethylene (UHMWPE) doped with triphenyl phosphate (TPP) at atmospheric pressure was studied by molecular beam mass spectrometry, dynamic mass spectrometric thermal analysis, microthermocouples, thermogravimetry, gas chromatography/mass spectrometry. The kinetics of thermal degradation of pure UHMWPE and that mixed with TPP at high (≈150 K/s) and low (0.17 K/s) heating rates was investigated. The effective values of the rate constant and activation energy of the thermal degradation reaction were determined. Burning velocity and temperature profiles in UHMWPE and UHMWPE + TPP flames were measured. The composition of the combustion products in a flame zone adjacent to the burning surface of the sample was determined. TPP vapor in the flame was detected. The addition of TPP to UHMWPE was found to reduce the flammability of the polymer. It is shown that TPP acts as a fire retardant in both the condensed and gas phases.

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Authors and Affiliations

  1. Institute of Chemical Kinetics and Combustion, Siberian Branch, Russian Academy of Sciences, Novosibirsk, 630090, Russia

    M. B. Gonchikzhapov, A. A. Paletsky, L. V. Kuibida & O. P. Korobeinichev

  2. Novosibirsk State University, Novosibirsk, 630090, Russia

    M. B. Gonchikzhapov

  3. Vorozhtsov Novosibirsk Institute of Organic Chemistry, Siberian Branch, Russian Academy of Sciences, Novosibirsk, 630090, Russia

    I. K. Shundrina

Authors
  1. M. B. Gonchikzhapov
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  2. A. A. Paletsky
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  3. L. V. Kuibida
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  4. I. K. Shundrina
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  5. O. P. Korobeinichev
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Correspondence to A. A. Paletsky.

Additional information

Original Russian Text © M.B. Gonchikzhapov, A.A. Paletsky, L.V. Kuibida, I.K. Shundrina, O.P. Korobeinichev.

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Translated from Fizika Goreniya i Vzryva, Vol. 48, No. 5, pp. 97–108, September–October, 2012.

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Gonchikzhapov, M.B., Paletsky, A.A., Kuibida, L.V. et al. Reducing the flammability of ultra-high-molecular-weight polyethylene by triphenyl phosphate additives. Combust Explos Shock Waves 48, 579–589 (2012). https://doi.org/10.1134/S0010508212050097

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  • DOI: https://doi.org/10.1134/S0010508212050097

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