Volume 54, Number 3, May 2001
|Page(s)||320 - 322|
|Section||Electromagnetism, optics, acoustics, heat transfer, classical mechanics, and fluid dynamics|
|Published online||01 December 2003|
Acid-base components of solid surfaces and the triboelectric series
Department of Chemistry, The University of Hull - Hull, HU6 7RX, UK
Accepted: 26 February 2001
Contact electrification between solids is often explained qualitatively in terms of the relative positions of the materials in the triboelectric series. It is shown that the series can be put on a quantitative basis by analysing data for the wetting, by suitable probe liquids, of individual solid surfaces. In one approach to solid surface energies the polar fraction can be split into contributions from Lewis acid (electron-acceptor) and base (electron-donor) components. Using data for solid surface energy components in the literature it is shown that there is a good correlation between the electron-donor surface tension parameter and the position of the solid in the triboelectric series.
PACS: 41.20.Cv – Electrostatics; Poisson and Laplace equations, boundary-value problems / 68.35.Md – Surface thermodynamics, surface energies / 82.65.Dp – Thermodynamics of surfaces and interfaces
© EDP Sciences, 2001
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