Charging Characteristics between Insulators and Glass

摘要

It is necessary to understand mechanism of contact charging between insulators. However the electrification phenomena of the insulator surface are not well known yet. We measured the charging potential of glass which was separated from insulating plate, by using electrostatic voltmeter. From the experiment, we obtained the following results. The contact electrification potential of the glass was dependent on the material of insulating plate. The charge quantity on the glass depended on the number of contact with the insulating plate. Furthermore, this phenomenon was not related to the relative dielectric constant and ionization potential of insulating materials, but the apparent work function.