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Degradation of HDPE and LLDPE in closed mixing chamber: a comparison

I. Changes in the chemical structure

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Summary

Degradation of linear high density polyethylene (HDPE) and butyl branched linear low density polyethylene (LLDPE) was studied during moulding in a closed mixing chamber. At the beginning of the process the rate of oxidative degradation was found faster for LLDPE than for HDPE but later this relation reversed. The degradation mechanism was the same for both types of polyethylenes but the rate of elementary steps depended on the chemical structure of the polymer chain. The differences were attributed to the structural differences in the original materials and the products formed during degradation.

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Authors and Affiliations

  1. Central Research Institute for Chemistry of the Hungarian Academy of Sciences, P.O. Box 17, H-1525, Budapest, Hungary

    E. Földes, M. Iring & F. Tüdős

  2. Eötvös Lóránd University, Budapest, Hungary

    F. Tüdős

Authors
  1. E. Földes
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  2. M. Iring
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  3. F. Tüdős
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Földes, E., Iring, M. & Tüdős, F. Degradation of HDPE and LLDPE in closed mixing chamber: a comparison. Polymer Bulletin 18, 525–532 (1987). https://doi.org/10.1007/BF00255337

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