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Melting and thermodestruction processes in the poly(ethylene)-nanocrystalline nickel system

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Abstract

Composite materials (CM) based on poly(ethylene) (PE) and nanocrystalline nickel (Ni) have been produced. The effect of the content of nanocrystalline Ni and processes of structure formation of its particles on a melting temperature (T m), interval of melting, true melting heat (ΔH m), degree of crystallinity (χ) as well as characteristics of CM thermodestruction have been determined by DTA and thermogravimetry techniques. It was found that these characteristics are changed non-linearly when the content of nanocrystalline Ni increases. The most efficient influence of Ni on the above mentioned characteristics was observed for its low content (0.01 volume part of Ni). It was shown that a formation of a branched multifractal cluster of nickel above a percolation threshold favored a decrease in T m, ΔH m, χ of filled PE and a majority of thermal characteristics of CM thermodestruction as well.

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Authors and Affiliations

  1. Institute of Surface Chemistry, National Academy of Sciences of Ukraine, Generala Naumova 17, 03164, Kiev, Ukraine

    L. S. Semko, L. S. Dzyubenko, V. M. Ogenko & S. L. Revo

Authors
  1. L. S. Semko
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  2. L. S. Dzyubenko
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  3. V. M. Ogenko
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  4. S. L. Revo
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Semko, L.S., Dzyubenko, L.S., Ogenko, V.M. et al. Melting and thermodestruction processes in the poly(ethylene)-nanocrystalline nickel system. Journal of Thermal Analysis and Calorimetry 70, 621–631 (2002). https://doi.org/10.1023/A:1021657414739

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  • DOI: https://doi.org/10.1023/A:1021657414739

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