A collision model of charge exchange between metal and polymer spheres
- 21 June 1976
- journal article
- Published by IOP Publishing in Journal of Physics D: Applied Physics
- Vol. 9 (9) , 1305-1314
- https://doi.org/10.1088/0022-3727/9/9/007
Abstract
A model of the dynamics of charge exchange between metal and polymer spheres is investigated for contact times less than relaxation times. The model shows that the magnitude of charge exchange during the mixing of metal and polymer spheres depends upon a material rate constant, (barrier height of metal-polymer contact), the temperature at contact, the geometry of metal and polymer surfaces (sizes), the velocity of approach between metal and polymer and the ratio of the void volume to that occupied by the solid matter in the cavity. With the use of thermionic emission as the mechanism of charge transfer across the metal-polymer interfacial layer, an expression showing the dependence of current density on the barrier height of the metal-polymer contact and temperature at contact can be investigated in depth.Keywords
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