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Journal of Materials Science

, Volume 26, Issue 18, pp 4878–4882 | Cite as

Peculiarities of mechanical response of heavily filled polypropylene composites

Part I Elastic modulus
  • J. Jancar
  • J. Kucera
  • P. Vesely
Papers

Abstract

A concentration dependence of a dynamic storage E′c modulus was investigated for polypropylene filled with microfibrous magnesium hydroxide, Mg(OH)2. The non-monotonous shape of E against filler volume fraction dependence was explained as a consequence of the filler agglomeration.

A simple stochastical model for the dependence of an agglomerate size on the filler volume fraction was developed. A qualitative agreement was obtained between experimental data and proposed theory. A critical filler volume fraction, when an “infinite” agglomerate origins, was determined from the model as well as from percolation conception to be around v f crit = 0.2.

Keywords

Polypropylene Agglomeration Stochastical Model Concentration Dependence Mechanical Response 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Chapman & Hall 1991

Authors and Affiliations

  • J. Jancar
    • 1
  • J. Kucera
    • 1
  • P. Vesely
    • 2
  1. 1.Chemopetrol, Research Institute of Macromolecular ChemistryBrnoCzech Republic
  2. 2.State Textile Research InstituteVeverska BityskaCzech Republic

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