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Effect of antioxidants on the changes in the effective viscosity and tensile strength of polypropylene during processing and aging

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Polymer Mechanics Aims and scope

Abstract

The effective viscosity of an isotactic polypropylene (IPP) melt during processing and aging has been investigated together with the changes in the mechanical properties of stabilized IPP during aging. In the presence of polymeric antixoidants there is an increase in the effective viscosity of the IPP melt attributable to interaction with the degraded IPP molecules. During the aging of IPP articles the characteristic properties of polymeric antioxidants associated with their high molecular weight are not especially in evidence.

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Literature cited

  1. M. B. Neiman (editor), Aging and Stabilization of Polymers [in Russian], Moscow (1964), p. 6.

  2. Polypropylene [in Russian], Leningrad (1967).

  3. A. A. Dontsov, P. Farka, G. A. Ermilova, and B. A. Dogadkin, Soviet Patent No. 172,033, Byull. Izobr., No. 12, 74 (1965).

  4. A. A. Dontsov, P. Farka, G. M. Kogan, G. A. Ermilova, and B. A. Dogadkin, Soviet Patent No. 184,433, Byull. Izobr., No. 15 (1966).

  5. G. V. Sagalaev and T. M. Ismailov, Plast. Massy, No. 2, 59 (1968).

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Authors
  1. A. A. Dontsov
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  2. P. Farka
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  3. B. A. Dogadkin
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Additional information

Moscow Lomonosov Institute of Fine Chemical Technology. Translated from Mekhanika Polimerov, No. 5, pp. 938–941, September–October, 1970.

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Dontsov, A.A., Farka, P. & Dogadkin, B.A. Effect of antioxidants on the changes in the effective viscosity and tensile strength of polypropylene during processing and aging. Polymer Mechanics 6, 819–821 (1970). https://doi.org/10.1007/BF00856221

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  • DOI: https://doi.org/10.1007/BF00856221

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