Surface Potential Decay of Corona Charged Polyethylene Films: Influence of Deep Surface Traps

Andrey Rychkov,Alexey Kuznetsov,Anna Gulyakova,Dmitry Rychkov

IEEE Transactions on Dielectrics and Electrical Insulation（2021）

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摘要

Electret properties of low-density polyethylene (LDPE) films are investigated in the range of relatively low (up to 107 V/m) electrical fields. Thermally stimulated surface potential decay and thermally stimulated surface potential recovery reveal that LDPE films show no “cross-over” phenomenon and space charge accumulation in the polymer volume. The deepest traps with an energy of 1.1–...

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electrets,charge storage and transport,corona,charge stability,charge decay,traps

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