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周远翔
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期刊论文
Effects of crystallinity on the space charge properties of polyethylene
Journal of Electrostatics ▍(▍▍▍)▍▍▍-▍▍▍，-0001，（）：
In this paper, three kinds of annealing methods with different cooling rates are used to prepare low-density polyethylene (LDPE) samples with different microstructure in crystal-linity. The effects of crystallinity on space charge properties are investigated. It was found that homo-charges are easier to accumulate inhigh rate cooling sample and hetero-charges are easier to accumulate near cathode in low rate cooling sample. It was also found that charge movement and neutralization oceurs with the increases of the applied field and the voltage appliying duration. Based on these results, the influence of crystallinity on spae charge accumulation is emphasized.
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