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Effect of Low Pressure on Surface Charge of Electrets
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1968
Year
Materials ScienceMaterials EngineeringElectrical EngineeringElectroactive MaterialEngineeringElectrohydrodynamicsPolystyrene MaterialSurface ScienceMechanical EngineeringSurface ChargeElectrical PropertyElectret SurfaceEffective Surface ChargeElectrochemistryElectrical Insulation
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.