Journal of Materials Science

, Volume 19, Issue 10, pp 3330–3336 | Cite as

The mechanical properties of rubber compounds containing soft fillers

Part 2 Tear properties
  • M. Pittolo
  • R. P. Burford


A detailed examination of failure of properties of polybutadiene containing soft elastomeric fillers has previously been described [1]. Here the effect of filler modulus and filler-matrix adhesion on tear strength is measured. Tear behaviour depends upon the level of interfacial adhesion; when high, tear strength increases with increasing filler hardness, but if interfacial adhesion is low, incorporation of fillers may result in low tear strengths. An estimate of the edge flaw size is made from the tear strength and strain energy densities at break. It was found that compounds with low interfacial adhesion generally had edge flaw sizes of the same order as the maximum filler particle size. A correlation between tear strength and tear surface morphology is made.


Polymer Particle Size Rubber Energy Density Surface Morphology 
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Copyright information

© Chapman and Hall Ltd. 1984

Authors and Affiliations

  • M. Pittolo
    • 1
  • R. P. Burford
    • 1
  1. 1.School of Chemical Engineering and Industrial ChemistryUniversity of New South WalesKensingtonAustralia

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