Computer simulations for radiation electrization of polymer composite materials having controlled electrical conductivity
A physic-mathematical model of radiation electrization of composite polymer film materials having controlled dark conductiyity was proposed, taking into account the time-varying value of its radiative conductivity. Computer simulations have been carried out for radiation electrization of composite low-density polyethylene films having controlled electrical specific conductivity 10<sup>-</sup><sup>9</sup>-10<sup>-</sup><sup>10</sup> Ω <sup>-</sup><sup>1</sup>•m<sup>-</sup><sup>1</sup> in case of values of a flow of electrons 10<sup>-</sup><sup>7</sup> A·m<sup>-</sup><sup>2</sup> (corresponds to conditions of a quiet geomagnetic situation) and 10<sup>-</sup><sup>5</sup> A·m<sup>-</sup><sup>2</sup> (corresponds to conditions of a typical geomagnetic substorm). It is shown, when the radiation conductivity is commensurable with the dark conductivity, it substantially slows down the increase of the electric field strength over radiation time. The radiative conductivity important role to prevent developing electrostatic discharges taking into account substorm course duration is shown. Effective use possibility of composite polymer materials having controlled dark conductivity in radio-electronic devices to prevent emergence of electrostatic discharges, it has been shown.