Tribological properties of short glass fiber reinforced polyamide 12 sliding on medium carbon steel

Sung Soo Kim, Min Wook Shin, Ho Jang

Research output: Contribution to journalArticlepeer-review

52 Citations (Scopus)


The friction and wear of short glass fiber reinforced polyamide 12 (PA12) were investigated. The behavior of the fibers on a sliding surface and their effect on the friction and wear were studied in terms of the amount and orientation of the fibers in the composite. Results showed that the friction level and wear resistance were strongly affected by the fiber content, and glass fiber patches produced on the sliding surface played important roles in the wear resistance of the composite. The optimum fiber content for the best wear resistance of the PA12 composite was approximately 30. wt.% and higher fiber contents had no added effect on the wear amount. The applied load also strongly affected the wear resistance due to the increase in temperature at the sliding interface, and an increase in rapid wear was observed when the interface temperature increased above the glass transition temperature of PA12. On the other hand, the fiber orientation had less effect on the friction and wear of the composite compared to the fiber content and applied load. Based on the behavior of glass fibers on the sliding surface and wear debris analysis, the wear mechanism of the PA12 composite is discussed.

Original languageEnglish
Pages (from-to)34-42
Number of pages9
Publication statusPublished - 2012 Jan 27

Bibliographical note

Funding Information:
This study was supported by the Korea Research Foundation (KRF) through the National Research Laboratory Program (No. 2010-0018914 ).


  • Gears
  • Polyamide 12
  • Polymer matrix composite
  • Short glass fibers
  • Sliding wear

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Mechanics of Materials
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films
  • Materials Chemistry


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