Effects of fine-particle addition on plasticity of polymer composites

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Abstract

The effects of particle size, content and rigidity as well as influence of interfacial adhesion and addition of elastomeric interlayer on the pre-yielding and yielding properties of polymer composites are firstly reviewed. The rigid particles under discussion are glass beads (GB), calcium carbonate (CaCO3), Talc, Aluminum Trihydrate (ATH), Kaolin and Dolomite while the soft particles are rubber. The influence of particles on thermoplastics like PP, PMMA and HOPE, and thermosets like epoxy are discussed. Effects of the fine particles on the plasticity are viewed in terms of nucleation and propagation of micro-shear zones within the matrix ligaments between the particles. During the pre-yielding stage, the non-elastic deformation is described by using non-elastic work hardening rate, K, expressed as K/M ratio (work hardening rate-to-compress modulus, M). The correlation between the KIM ratio and the two KIC and JIC parameters in response to change of particle size and content are studied. Thus, the parameters that are essential to improve pre-yielding and yielding properties of the polymer composites are proposed.
Original languageEnglish
Pages (from-to)345-350
Number of pages6
JournalKey Engineering Materials
Issue number180 PART 1
Publication statusPublished - 1 Dec 2000

Keywords

  • Particle-Based Polymer Composites
  • Plasticity
  • Pre-Yielding
  • Yielding

ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

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