Friction control utilizing biomimetic polymer brush technology

Motoyasu Kobayashi, Masami Terada, Atsushi Takahara

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The environmentally friendly biomimetic lubrication system was designed by tethering poly electrolytes on the substrates with sufficiently high grafting density, so-called 'polymer brushes'. The hydrated brushes in aqueous media formed water lubrication layer to reduce friction coefficient, which is useful not only for artificial joints and bio-devices but also for various mechanical devices. Macroscopic tribological properties of polyelectrolyte brushes bearing ammonium salt, sulfonic acid, or phosphorylcholine unit were characterized by ball-on-plate type tribotester in the air, water, and salt solution through sliding a glass ball on the surface under a normal pressure of ca. 140MPa. The low friction coefficient below 0.02 was observed in polyelectrolyte brushes in water.

Original languageEnglish
Title of host publicationSociety of Tribologists and Lubrication Engineers Annual Meeting and Exhibition 2012
Pages254-256
Number of pages3
Publication statusPublished - Dec 1 2012
EventSociety of Tribologists and Lubrication Engineers Annual Meeting and Exhibition 2012 - St. Louis, MO, United States
Duration: May 6 2012May 10 2012

Publication series

NameSociety of Tribologists and Lubrication Engineers Annual Meeting and Exhibition 2012

Other

OtherSociety of Tribologists and Lubrication Engineers Annual Meeting and Exhibition 2012
CountryUnited States
CitySt. Louis, MO
Period5/6/125/10/12

All Science Journal Classification (ASJC) codes

  • Surfaces and Interfaces

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  • Cite this

    Kobayashi, M., Terada, M., & Takahara, A. (2012). Friction control utilizing biomimetic polymer brush technology. In Society of Tribologists and Lubrication Engineers Annual Meeting and Exhibition 2012 (pp. 254-256). (Society of Tribologists and Lubrication Engineers Annual Meeting and Exhibition 2012).