CS260012B1 - Method of electret production with set charge density - Google Patents

Abstract

The aim of the solution is to increase the areal density and improving the stability of the potential under increased air humidity. The method of obtaining electrets is determined area charge density according to the author Certificate No. 208381 in which it is charged the dielectric flatness is discharged to zero at temperature of 100 to 150 ° 0, then charges negative corona discharge to nominal charge area density at initial temperature 140 to 160 ° C in 7 to 10 minutes at room temperature simultaneously dropping the temperature to 50-70 ° C.

Description

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ΦΟΡΜΥΛΑ H30BPETEHJM

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HcTOMHHKH ΗΗφορΜΘΗΗΗ, ΠΡΗΗΗΤΜβ ΒΟ ββH 9Κ0ΠβρΤΗ3β: 1, ABTOpcKoe CBHHeTenbCTBo CCCP Ψ 492239, κπ. H01G 7/02, ony6jiHKOBaHo1982.

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