1968•Journal of The Electrochemical SocietyOpen access

Effect of Low Pressure on Surface Charge of Electrets

Robert A. Draughn, Avery Catlin

Abstract

Electrets prepared from Mylar and a polystyrene material were exposed to low pressure. The effective surface charge of the electrets decreased as the pressure was lowered. It is proposed that the charge decrease is due to either desorption of charge sources from the electret surfaces or spark breakdown on the electret surface.

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Key concepts: Electret, Polystyrene, Materials science, Surface charge, Charge (physics), Desorption, Composite material, Polymer