Effect of water swelling on the tribological properties of pmma spin-cast film and brush in aqueous environment

Myo Minn, Motoyasu Kobayashi, Hiroshi Jinnai, Hirohmi Watanabe, Atsushi Takahara

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

Due to their light weight, low corrosion and good tribological properties, polymer films have been widely studied in dry condition as well as recently in aqueous environment. Though the presence of water can further reduce the friction, it promotes the wear rate of the polymer films. As a remedy to decrease the wear rate of polymer films under aqueous condition, in this study, we used PMMA brush which is chemically anchored to a substrate and compared its friction and wear properties with those of conventional PMMA spin-cast film. Ellipsometry, contact angle measurements and atomic force microscopy are used to study the surface properties, e.g., wear mechanisms and wear depths of PMMA films. Under different sliding speeds and applied loads, PMMA brush showed lower friction than PMMA spin-cast film in aqueous. Moreover, it was shown that the swelling of water molecules is a dominant factor in determining the wear durability of PMMA films in which PMMA brush showed better wear performance than PMMA spin-cast film.

Original languageEnglish
Pages (from-to)121-129
Number of pages9
JournalTribology Letters
Volume55
Issue number1
DOIs
Publication statusPublished - Jan 1 2014

Fingerprint

brushes
Polymethyl Methacrylate
Brushes
swelling
Swelling
casts
Wear of materials
Water
water
Polymer films
Friction
friction
polymers
Ellipsometry
low weight
Angle measurement
Contact angle
Surface properties
durability
Atomic force microscopy

All Science Journal Classification (ASJC) codes

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

Cite this

Effect of water swelling on the tribological properties of pmma spin-cast film and brush in aqueous environment. / Minn, Myo; Kobayashi, Motoyasu; Jinnai, Hiroshi; Watanabe, Hirohmi; Takahara, Atsushi.

In: Tribology Letters, Vol. 55, No. 1, 01.01.2014, p. 121-129.

Research output: Contribution to journalArticle

Minn, Myo ; Kobayashi, Motoyasu ; Jinnai, Hiroshi ; Watanabe, Hirohmi ; Takahara, Atsushi. / Effect of water swelling on the tribological properties of pmma spin-cast film and brush in aqueous environment. In: Tribology Letters. 2014 ; Vol. 55, No. 1. pp. 121-129.
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