Dry friction and sliding behavior of organoclay reinforced thermoplastic polyurethane rubbers

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15 Citations (Scopus)

Abstract

The dry sliding (against steel counterpart) behavior of thermoplastic polyurethane rubbers (TPU) of various types and hardness values was studied in different testing configurations as a function of organoclay modification. Organoclays with various intercalants were incorporated in 5wt.% in the TPUs. It was found that the friction and wear characteristics were moderately influenced by the type of the organoclay albeit the dispersion state of the latter was highly different in the Corresponding TPU nanocomposites. The organoclay reinforcement altered the wear mechanisms, compared to the neat versions. TPU systems with high hardness showed lower friction coefficient and higher resistance to wear than those of lower hardness. The fact that friction and wear characteristics did not change much by contrast to the clay dispersion were attributed to changes in the (super)molecular structure of the TPU owing to the organoclay modification. However, this aspect was not checked in this work.

Original languageEnglish
Pages (from-to)537-543
Number of pages7
JournalKGK Kautschuk Gummi Kunststoffe
Volume59
Issue number10
Publication statusPublished - Oct 1 2006

Keywords

  • Friction
  • Nanocomposite
  • Organoclay
  • Sliding wear
  • Thermoplastic polyurethane rubber (TPU)

ASJC Scopus subject areas

  • Mechanical Engineering
  • Polymers and Plastics
  • Industrial and Manufacturing Engineering
  • Materials Chemistry

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