CS260012B1 - A method of producing electrets with a given surface charge density - Google Patents

Abstract

The aim of the solution is to increase the areal charge density and improve the stability of the potential under the influence of increased air humidity. A method of obtaining electrets with a specified areal charge density according to author's certificate No. 208381, in which the charged surface of the dielectric is discharged to zero at a temperature of 100 to 150 °C, then charged by a negative corona discharge up to the nominal areal charge density at an initial temperature of 140 to 160 °C within 7 to 10 minutes with a simultaneous decrease in temperature to 50 to 70 °C.

Description

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ΦΟΡΜΥΛΑ H30BPETEHJM

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P E Φ E P A T

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QpMSHaHo H3o6peTenneM no pesynbTaTaM SKcnepTHS, ocymecTBneHo TocynapcT-BeHHbM CCM no CCM no nenMM β3θ6ρβτβΗΗή η οτκρκΤΗή, 1 ΗβρτβΜ 260012

Claims (1)

BACKGROUND OF THE INVENTION A method for producing electrets with a given surface density in accordance with U.S. Pat. No. 208381, characterized in that, in order to increase the surface density of charges and to target the potential stability under the influence of air humidity, the charged dielectric surface is discharged to zero at 100 to 150 ° C, then the negative corona discharge charges the smallest charge density at an initial temperature of 140 ° C to 160 ° C within 7 to 10 minutes with simultaneous sinking to 50 to 70 ° C. . 260012