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The effects of run‐in on rubber friction
Author(s) -
Cooper R. P.,
Ellis Bryan
Publication year - 1982
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.1982.070271218
Subject(s) - natural rubber , carbon black , composite material , stearic acid , zinc stearate , materials science , stearate , friction coefficient , chemistry , organic chemistry , raw material
Experimental measurement of the change in coefficient of friction with sliding distance of a carbon‐black‐reinforced rubber on either glass or Perspex surfaces increases monotonically to a constant value as required by Saibel's theory. However, this general stochastic model does not allow for a fully satisfactory physical interpretation of the effects of run‐in on rubber friction. The present measurements for rubber on a glass surface agree well with those of Roth and co‐workers reported many years ago. The observation of these effects on Perspex does not appear to have been reported previously. It is found that a material, probably stearic acid or zinc stearate, is deposited from the rubber onto a glass surface when the rubber slides on it.