| Issue |
EPL
Volume 103, Number 3, August 2013
|
|
|---|---|---|
| Article Number | 36003 | |
| Number of page(s) | 5 | |
| Section | Condensed Matter: Structural, Mechanical and Thermal Properties | |
| DOI | https://doi.org/10.1209/0295-5075/103/36003 | |
| Published online | 28 August 2013 | |
Contact electrification and the work of adhesion
1 Peter Grünberg Institut-1, FZ- Jülich - 52425 Jülich, Germany, EU
2 DII, Università del Salento - 73100 Monteroni- Lecce, Italy, EU
3 Samara State Technical University - 443100 Samara, Russia
4 Department of Chemical Engineering, Lehigh University, Bethlehem, PA, USA
Received: 25 June 2013
Accepted: 30 July 2013
We present a general theory for the contribution from contact electrification to the work necessary to separate two solid bodies. The theory depends on the surface charge density correlation function 
which we deduce from Kelvin Force Microscopy (KFM) maps of the surface electrostatic potential. For silicon rubber (polydimethylsiloxane, PDMS) we discuss in detail the relative importance of the different contributions to the observed work of adhesion.
PACS: 62.20.Qp – Friction, tribology, and hardness
© EPLA, 2013
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