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Vacuum thermal decomposition of polyethylene containing antioxidant and hydrophilic/hydrophobic silica

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Abstract

Temperature-programmed desorption mass spectrometry has been used to study vacuum thermolysis of high-density polyethylene (HDPE) and its composites with hydrophilic or hydrophobic nanosilica in the presence or absence of butylated hydroxytoluene (BHT). It has been found that both surface chemistry of silica filler and the presence of immobilized BHT affect the pathway of HDPE thermal decomposition. Volatility of BHT antioxidant was shown to decrease in the following sequence: free BHT > HDPE–BHT > HDPE–hydrophobic silica/BHT > HDPE–hydrophilic silica/BHT, and the capability of the additives to inhibit chain scission reaction during thermal decomposition of HDPE in vacuum was as follows: hydrophobic silica/BHT > BHT > hydrophobic silica > hydrophilic silica/BHT > hydrophilic silica ≈ no additives.

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Acknowledgements

The research leading to these results has received funding from the People Programme (Marie Curie Actions) of the European Union’s Seventh Framework Programme FP7/2007–2013/under REA grant agreement No PIRSES-GA-2013-612484.

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Authors and Affiliations

  1. Chuiko Institute of Surface Chemistry, National Academy of Sciences of Ukraine, 17 General Naumov Str., Kiev, 03164, Ukraine

    P. O. Kuzema, Yu. M. Bolbukh, V. A. Tertykh & I. V. Laguta

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  1. P. O. Kuzema
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  2. Yu. M. Bolbukh
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  3. V. A. Tertykh
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  4. I. V. Laguta
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Correspondence to P. O. Kuzema.

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Kuzema, P.O., Bolbukh, Y.M., Tertykh, V.A. et al. Vacuum thermal decomposition of polyethylene containing antioxidant and hydrophilic/hydrophobic silica. J Therm Anal Calorim 121, 1167–1180 (2015). https://doi.org/10.1007/s10973-015-4646-5

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  • DOI: https://doi.org/10.1007/s10973-015-4646-5

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