Title

Insulator - Insulator Contact Charging As A Function Of Pressure

Keywords

Corona; Electrostatic; Induction; Langmuir isotherm; Surface charge; Triboelectrification

Abstract

Metal - metal and to an extent metal - insulator contact or triboelectric charging are well known phenomena with good theoretical understanding of the charge exchange mechanism. However, insulator - insulator charging is not as well understood. Theoretical and experimental research has been performed that shows that the surface charge on an insulator after triboelectric charging with another insulator is rapidly dissipated with lowered atmospheric pressure. This pressure discharge is consistent with surface ions being evaporated off the surface once their vapor pressure is attained. A two-phase equilibrium model based on an ideal gas of singly charged ions in equilibrium with a submonolayer adsorbed film was developed to describe the pressure dependence of the surface charge on an insulator. The resulting charge density equation is an electrostatic version of the Langmuir isotherm.

Publication Date

12-1-2006

Publication Title

AIChE Annual Meeting, Conference Proceedings

Number of Pages

-

Document Type

Article; Proceedings Paper

Personal Identifier

scopus

Socpus ID

80053742893 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/80053742893

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