Friction behavior between an artificial skin block and a glass plate under unlubricated and partly/completely water-lubricated conditions

Toshiaki Nishi, Takeshi Yamaguchi, Kei Shibata, Kazuo Hokkirigawa

Research output: Contribution to journalArticlepeer-review

Abstract

It is usually difficult to separate plastic bag through a dry or dripping wet finger due to low friction. Although a moist finger, enabled by exposing the skin to small amount of water exhibits higher friction, the reason has not yet been scientifically justified. We showed that the real contact area and friction coefficient between an artificial skin block with fingerprint pattern and a glass plate reaches a maximum when about 5% of contact area is covered by water. In such a high friction condition, the real contacts are surrounded by a meniscus. Thus, the real contact formation is promoted by negative pressure at the meniscus.

Original languageEnglish
Article number107179
JournalTribology International
Volume163
DOIs
Publication statusPublished - 2021 Nov

Keywords

  • Contact area
  • Elastomer
  • Sliding
  • Wetting

ASJC Scopus subject areas

  • Mechanics of Materials
  • Mechanical Engineering
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films

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