Evaluation of internal electric field of PE/EVA composite systems by TSC-separation methods

For the purpose of internal field evaluation of an insulating composite, the Maxwell-Wagner model is usually applied. However, it is constrained by the possibility of ignoring the influence of interfaces. In order to evaluate internal field under any conditions, the thermally stimulated current (TSC) separation method was developed. This method is useful for analysis of a composite if it is dipolar. Details are provided of the TSC separation method and the experimental results on polyethylene and an ethylene-vinyl acetate copolymer composite. It proved that this method is not only useful for internal field analysis but could also be used to identify the space charge location inside the composite.<
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