Abstract
In this paper we determine for the first time the volume conductivity of polyethylene (of 40 μm and 50 μm thickness), using the positive corona triode. A general theory of flowing of the current through the sample, when it depends linearly on the grid potential, is formulated. A concrete methodology for the definition of volume conductivity is composed. The volume conductivity of polyethylene lies within the interval: . These results obtained using the corona triode are closely similar to those obtained using the standardized “static” methods, thus showing its superiority to the “dynamic” method of electronic radiation.
Highlights
The electrical properties of polymers are of great importance for various applications
In this paper we determine for the first time the volume conductivity of polyethylene, using the positive corona triode
In this paper we determine for the first time the volume conductivity of polyethylene using the positive corona triode: corona point, grid, grounded electrode
Summary
The electrical properties of polymers are of great importance for various applications. Polyethylene is the most extensively used thermoplastic polymer, due to its excellent electrical, thermal, and mechanical properties. Conductivity, an important parameter of polymer characteristics, is traditionally performed with the classic “static” method (a system of electrodes) [1]. In addition, a “dynamic” method, based on electron-beam irradiation of thin samples of polyethylene (PE) is used for the measurement of the conductivity [2] [3] [4].
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